CURRICULUM VITAE for PHILIP H. HECKEL, Professor of Geoscience, February 12, 2003

Department of Geoscience, University of Iowa, Iowa City, IA 52242
Phone: 319-335-1804
E-mail: philip-heckel@uiowa.edu

EDUCATION:
Rice University [Houston, TX] 1960-1965, Ph.D. in Geology, 1966
Amherst College [Amherst, MA], 1956-1960, B.A. in Geology, 1960

PROFESSIONAL HISTORY:
1978-present - Professor of Geology/Geoscience, The University of Iowa
(1995-1998 – Chairman of Department)
1971-1978 - Associate Professor of Geology, The University of Iowa.
1967-1971 - Research Associate at Kansas Geological Survey, Kansas University; on summer appointments for 1 or 2 months/year from 1971-1991.
1968-1971 - Visiting Professor of Geology, and ad hoc member of Graduate Faculty, Wichita State University.
1970 - Ad hoc member of Graduate Faculty in Geology, Kansas University.
1965-1967 - Geologist at Kansas Geological Survey.

HONORS AND FELLOWSHIPS:
1963 - 1964 Humble Oil Company Graduate Fellowship.
1960 - 1963 National Science Foundation Graduate Fellowships.
1960 - graduated magna cum laude from Amherst College.
1960 - elected to Phi Beta Kappa.

PROFESSIONAL AFFILIATIONS
SubCommission on Carboniferous Stratigraphy (SCCS) of International Commission on Stratigraphy (ICS) of International Union of Geological Sciences (IUGS): selected
Titular (voting) member (one of 21 total), 1996-present; Chair, 2000-present
Society for Sedimentary Geology (SSG) [formerly Society of Economic Paleontologists and Mineralogists (SEPM)], 1967-present.
SSG (SEPM) Midcontinent Section
SSG (SEPM) Great Lakes Section
Geological Society of Iowa, 1971-present

 

SCHOLARSHIP

PUBLICATIONS

[Code: None used for: sole authorship, or for
senior authorship when I did the majority of the work;
[=] used for: equal contribution as either senior or junior author;
[st] used for: co-author who was a student;
[s] used for: secondary contribution;
[m] used for: minor contribution.

REFEREED PUBLICATIONS

Total: 50 titles, including 5 bulletins (4 as sole author, 1 as senior author), 45 articles (22 as sole author, 6 as senior author, 17 as junior author)

Heckel, P.H., and Watney, W.L., 2002, Revision of stratigraphic nomenclature and classification of the Pleasanton, Kansas City, Lansing, and lower part of the Douglas groups (lower Upper Pennsylvanian, Missourian) in Kansas: Kansas Geological Survey Bulletin 246, 69 p.

Heckel, P.H., 2002, Overview of cyclothems in Midcontinent North America and brief summary of those elsewhere in the world; in The Carboniferous and Permian of the World, L.V. Hills, C.M. Henderson, and E.W. Bamber (Eds.), Canadian Society of Petroleum Geologists Memoir 19, p. 79-98.

Heckel, P.H., 2002, Genetic stratigraphy and conodont biostratigraphy of upper Desmoinesian-Missourian (Pennsylvanian) cyclothem succession in Midcontinent North America: in The Carboniferous and Permian of the World, L.V. Hills, C.M. Henderson, and E.W. Bamber (Eds.), Canadian Society of Petroleum Geologists Memoir 19, p. 99-119.

Heckel, P.H., Boardman, D.R., and Barrick, J.E., 2002, Desmoinesian-Missourian regional stage boundary reference position for North America: in The Carboniferous and Permian of the World, L.V. Hills, C.M. Henderson, and E.W. Bamber (Eds.), Canadian Society of Petroleum Geologists Memoir 19, p. 710-724.

[st] Malinky, J.M., and Heckel, P.H., 1998, Paleoecology and taphonomy of faunal assemblages in gray “core” (offshore) shales in midcontinent Pennsylvanian cyclothems: Palaios, v. 13, p. 311-334.

Heckel, P.H., Gibling, M.R., and King, N.R., 1998, Stratigraphic model for glacial-eustatic Pennsylvanian cyclothems in highstand nearshore detrital regimes: Journal of Geology, v. 106, p. 373-383.

Barrick, J.E., Boardman, D.R., and [s]Heckel, P.H., 1996, Biostratigraphy across the Desmoinesian-Missourian Stage boundary in North American Midcontinent, USA: Implications for defining the Middle-Upper Pennsylvanian Series boundary: Newsletters on Stratigraphy, v. 34, no. 3, p.161-175.

[st] Xiong, B., and Heckel, P.H., 1996, Cementation patterns and diagenesis in the Stanton Limestone/cyclothem (Missourian, Upper Pennsylvanian) in the northern Midcontinent, Geol. Soc. America, Special Paper 306, p.373-387.

[st] Felton, R.M., and Heckel, P.H., 1996, Small-scale cycles in Winterset Limestone Member (Dennis Formation, Pennsylvanian of northern Midcontinent) represent "phased regression": Geol. Soc. America, Special Paper 306, p.389-397.

[st] Bisnett, A.J., and Heckel, P.H., 1996, Sequence stratigraphy helps to distinguish offshore from nearshore black shales in the Midcontinent Pennsylvanian succession: Geol. Soc. America, Special Paper 306, p.341-350.

Heckel, P.H., 1995, Glacial-eustatic base-level--climatic model for late Middle-Late Pennsylvanian coal-bed formation in the Appalachian basin: Journal of Sedimentary Research, v. B65, p. 348-356.

Heckel, P. H., 1994, Significance of Midcontinent Pennsylvanian cyclothems to deciphering global Pennsylvanian stratigraphy, in Cecil, C.B., and Edgar, N.T., eds., Predictive Stratigraphic Analysis -- Concepts and Application: U.S. Geological Survey Bulletin 2110, p. 37-42.

Heckel, P.H., 1994, Evaluation of evidence for glacial-eustatic control over marine Pennsylvanian cyclothems in North America and consideration of possible tectonic effects: in "Tectonic and Eustatic Controls on Sedimentary Cycles," ed. by J.M. Dennison and F.R. Ettensohn, SEPM Concepts in Sedimentology and Paleontology No. 4, p. 65-87.

Heckel, P.H., 1991, Thin widespread Pennsylvanian black shales of Midcontinent North America: a record of a cyclic succession of widespread pycnoclines in a fluctuating epeiric sea: in "Modern and Ancient Continental Shelf Anoxia" ed. by R.V. Tyson and T.H. Pearson; Geol. Soc. (London) Special Publication No. 58, p. 259-273.

Heckel, P.H., 1991, Lost Branch Formation and revision of upper Desmoinesian stratigraphy along midcontinent Pennsylvanian outcrop belt: Kansas Geological Survey, Geology Series 4, 67 p.

Boardman, D.R., [m] Heckel, P.H., Barrick, J.E., Nestell, M., and Peppers, R.A., 1990, Middle-Upper Pennsylvanian chronostratigraphic boundary in the Midcontinent region of North America: Courier Forschungsinstitut Senckenberg, v. 130, p. 319-338.

Lambert, L.L. and [s]Heckel, P.H., 1990, The Atokan/Desmoinesian boundary in North America: Preliminary considerations for selecting a boundary horizon: Courier Forschungsinstitut, Senckenberg, v. 130, p. 307-318.

Heckel, P.H., 1990. Evidence for global (glacial-eustatic) control over upper Carboniferous (Pennsylvanian) cyclothems in midcontinent North America: in "Tectonic Events Responsible for Britain's Oil and Gas Reserves", ed. by R.F.P. Hardman and J. Brooks; Geol. Soc. (London) Special Publication No. 55, p. 35-47.

Heckel, P.H., 1989, Updated Middle-Upper Pennsylvanian eustatic sea level curve for Midcontinent North America and preliminary biostratigraphic characterization: Onzième Congrès International de Stratigraphie et de Géologie du Carbonifère Beijing 1987, Compte Rendu 4 (1989), p. 160-185.

[st] Goebel, K.A., Bettis, E.A. III, and [s] Heckel, P.H., 1989, Upper Pennsylvanian paleosol in Stranger Shale and underlying Iatan Limestone, southwestern Iowa: Jour. Sedimentary Petrology, v. 59, p. 224-232.

Boardman, D.R., and [=] Heckel, P.H., 1989, Glacial-eustatic sea-level curve for early Late Pennsylvanian sequence in north-central Texas and biostratigraphic correlation with curve for midcontinent North America: Geology, v. 17, p. 802-805.

Boardman, D.R., Barrick, J.E., [m] Heckel, P.H., and Nestell, M., 1989, Upper Pennsylvanian chronostratigraphic subdivisions of the North American Midcontinent: Texas Tech University Studies in Geology 2, Part II, p. 1-16.

Heckel, P.H., 1989, Current view of Midcontinent Pennsylvanian cyclothems: Texas Tech University Studies in Geology 2, Part II, p. 17-34.

Boardman, D.R., and [=] Heckel, P.H., 1989, Glacial-eustatic sea-level curve for early Upper Pennsylvanian sequence in north-central Texas and biostratigraphic correlation with curve for Midcontinent North America:Texas Tech University Studies in Geology 2, Part II, p. 63-73.

Witzke, B.J., and [s]Heckel, P.H., 1988, Paleoclimatic indicators and inferred Devonian paleolatitudes of Euramerica: Canadian Society of Petroleum Geologists, Memoir 14, Devonian of the World, v. 1, p. 49-63.

Heckel, P.H., 1988, Classic "Kansas" cyclothems: Geol. Soc. America, Centennial Field Guide--South-Central Section, v. 4, ed. by O.T. Hayward, p. 43-56.

Heckel, P.H., 1987, Pennsylvanian cyclothem near Winterset, Iowa: Geol. Soc. America, Centennial Field Guide--North-Central Section, v. 3, ed. by D.L. Biggs, p. 119-124.

Heckel, P.H., 1986, Sea-level curve for Pennsylvanian eustatic marine transgressive-regressive depositional cycles along midcontinent outcrop belt, North America: Geology, v. 14, p. 330-334.

[st] Schutter, S.R., and Heckel, P.H., 1985, Missourian (early Late Pennsylvanian) climate in Midcontinent North America: Internat. Jour. Coal Geology, v.5, p. 111-140.

Heckel, P.H., 1984, Changing concepts of Midcontinent Pennsylvanian cyclothems, North America: 9e Congrès International de Stratigraphie et de Géologie du Carbonifère, Compte Rendu, v. 3, p. 535-553.

Heckel, P.H., 1984, Factors in Mid-Continent Pennsylvanian limestone deposition: Tulsa Geol. Soc. Special Publication 2, Limestones of the Mid-Continent, N.J. Hyne, ed., p. 25-50.

Heckel, P.H., 1983, Diagenetic model for carbonate rocks in Midcontinent Pennsylvanian eustatic cyclothems: Jour. Sedimentary Petrology, v. 53, p. 733-759.

Johnson, J.G., and [s]Heckel, P.H., 1982, Devonian: McGraw-Hill Encyclopedia of Science & Technology, 5th Edition, vol. 4, p. 147-151.

Ebanks, W.J., Brady, L.L., [=] Heckel, P.H., and others, 1979, The Mississippian and Pennsylvanian (Carboniferous) Systems in the United States--Kansas: United States Geological Survey Professional Paper 1110-Q, p. Q1-Q29.

Heckel, P.H., 1980, Paleogeography of eustatic model for deposition of Midcontinent Upper Pennsylvanian cyclothems: Rocky Mountain Section, Soc. Econ. Paleontologists & Mineralogists, West-Central United States Paleogeography Symposium I: Paleozoic Paleogeography of West-Central United States, edited by
T.D. Fouch & E.R. Magathan, p. 197-215.

Heckel, P.H., and Jablonski, D., 1979, Reefs and other carbonate buildups: p. 690-705 in The Encyclopedia of Paleontology, ed. by R.W. Fairbridge and D. Jablonski. Encyclopedia of Earth Sciences, Vol. VII, Dowden, Hutchinson & Ross, Stroudsburg, Pa., 886 p.

Heckel, P.H., and [st] Witzke, B.J., 1979, Devonian world palaeogeography determined from distribution of carbonates and related lithic palaeoclimatic indicators: in The Devonian System, a Palaeontological Association International Symposium, ed. by M.R. House, C.T. Scrutton, and M.G. Bassett. Spec. Papers in Palaeontology No. 23, p. 99-123.

Strimple, H.L., and [m]Heckel, P.H., 1978, A significant acrocrinid (Crinoidea: Camerata) from the Ladore Shale (Missourian, Upper Pennsylvanian) in eastern Kansas: Kansas Geol. Survey Bull. 211, pt. 4, p. 5-9.

Heckel, P.H., 1977, Origin of phosphatic black shale facies in Pennsylvanian cyclothems of Midcontinent North America: Amer. Assoc. Petroleum Geologists Bulletin, v. 61, p. 1045-1068.

Heckel, P.H., 1975, Stratigraphy and depositional framework of the Stanton Formation in southeastern Kansas: Kansas Geological Survey Bulletin 210, 45 p.

Heckel, P.H., 1975, Solenoporid red algae (Parachaetetes) from Upper Pennsylvanian rocks in Kansas: Jour. Paleontology, v. 49, p. 662-673.

Heckel, P.H., and Baesemann, J.F., 1975, Environmental interpretation of conodont distribution in Upper Pennsylvanian (Missourian) megacyclothems in eastern Kansas: Amer. Assoc. Petroleum Geologists Bulletin, v. 59, p. 486-509.

Heckel, P.H., 1974, Carbonate buildups in the geologic record: a review: in Reefs in Time and Space, Selected Examples from the Recent and Ancient, a symposium edited by L.F. Laporte: Soc. Econ. Paleontologists & Mineralogists Spec. Pub. 18, p. 90-154.

Heckel, P.H., 1973, Nature, origin and significance of the Tully Limestone, an anomalous unit in the Catskill Delta, Devonian of New York: Geol. Soc. America, Special Paper 138, 244 p.

Heckel, P.H., 1972, Pennsylvanian stratigraphic reefs in Kansas, some modern comparisons and implications: Geologische Rundschau, v. 61, pt. 2, p. 584-598. (One of a group of papers in this issue resulting from a symposium on reefs at the VIII International Sedimentological Congress in Heidelberg, 1971.)

Heckel, P.H., 1972, Possible inorganic origin for stromatactis in calcilutite mounds in the Tully Limestone, Devonian of New York: Jour. Sedimentary Petrology, v. 42, p. 7-18.

Heckel, P.H., 1972, Recognition of ancient shallow marine environments: in Recognition of Ancient Sedimentary Environments, a symposium edited by J. K. Rigby and W.K. Hamblin: Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 16, p. 226-286.

Heckel, P.H., 1969, Devonian Tully Limestone in Pennsylvania and comparison to type Tully Limestone in New York: Pennsylvania Geological Survey, 4th series., Inf. Circ. 60, 33 p.

Heckel, P.H., and Cocke, J.M., 1969, Phylloid algal-mound complexes in outcropping Upper Pennsylvanian rocks of Mid-continent: Amer. Assoc. Petroleum Geologists Bulletin, v. 53, p. 1058-1074.

Murray, R., Hempelmann, L.H., and [m] Heckel, P.H., 1959, Leukemia in children exposed to ionizing radiation: New England Jour. Medicine, v. 261, p. 585-589.

NON-REFEREED PUBLICATIONS

Total: 38 titles, including 32 guidebook, open-file, or newsletter articles (13 as sole author, 10 as senior author, 9 as junior author), 1 encyclopedia article (sole author), 4 comments/replies on published articles, and 1 citation.

Heckel, P.H., 2002, Cyclothems: McGraw-Hill Encyclopedia of Science and Technology, Ninth Edition, v. 5, p. 184-186.

Heckel, P.H., 2002, Chairman’s Column: Newsletter on Carboniferous Stratigraphy, v. 20, p. 1-2.

Heckel, P.H., 2002, Observations and constraints on radiometric dating of the Pennsylvanian succession in North America and its correlation with dates from Europe: Newsletter on Carboniferous Stratigraphy, v. 20, p. 10-14.

Heckel, P.H., 2001, Chairman’s Column: Newsletter on Carboniferous Stratigraphy, v. 19, p. 1-3.

Heckel, P.H., 2001, New proposal for series and stage subdivision of Carboniferous System: Newsletter on Carboniferous Stratigraphy, v. 19, p. 12-14.

Lambert, L.L., Barrick, J.E., and [m]Heckel, P.H., 2001, Provisional Lower and Middle Pennsylvanian conodont zonation in Midcontinent North America: Newsletter on Carboniferous Stratigraphy, v. 19, p. 50-55.

Brenckle, P.L., Lane, H.L., [=]Heckel, P.H., and Rankey, E.C., 2001, Description of field trip stops: in P.H. Heckel, ed., Stratigraphy and Biostratigraphy of the Mississippian Subsystem (Carboniferous System) in Its Type Region, the Mississippi River Valley of Illinois, Missouri, and Iowa. I.U.G.S. Subcommission on Carboniferous Stratigraphy Guidebook for Field Conference, September 8-13, 2001, p. 12-66.

Barrick, J.E., and [s]Heckel, P.H., 2000, A provisional conodont zonation for Late Pennsylvanian (late Late Carboniferous) strata in midcontinent region of North America: Newsletter on Carboniferous Stratigraphy, v. 18, p. 15-22.

Heckel, P. H., Boardman, D. R., and others, 1999, Description of field trip stops: in P. H. Heckel, ed., XIV-ICCP Field Trip #8: Middle and Upper Pennsylvanian (Upper Carboniferous) Cyclothem Succession in Midcontinent Basin, U.S.A.: Kansas Geological Survey Open-file Report 99-27, p. 13-67.

Heckel, P. H., 1999, Overview of Pennsylvanian (Upper Carboniferous) stratigraphy in Midcontinent region of North America: in P. H. Heckel, ed., XIV-ICCP
Field Trip #8: Middle and Upper Pennsylvanian (Upper Carboniferous) Cyclothem Succession in Midcontinent Basin, U.S.A.: Kansas Geological Survey Open-file Report 99-27, p. 68-102.

Lambert, L. L., and [s]Heckel, P. H., 1999, A distinct clade of troughed idiognathodid conodonts that precedes the appearance of Streptognathodus: in P. H.
Heckel, ed., XIV-ICCP Field Trip #8: Middle and Upper Pennsylvanian (Upper Carboniferous) Cyclothem Succession in Midcontinent Basin, U.S.A.: Kansas Geological Survey Open-file Report 99-27, p. 174-177.

Barrick, J. E., [s]Heckel, P. H., and Boardman, D. R., 1999, Evolutionary patterns in late Pennsylvanian Idiognathodus and Streptognathodus and implications for chronostratigraphic boundary characterization and recognition: in P. H. Heckel, ed., XIV-ICCP Field Trip #8: Middle and Upper Pennsylvanian (Upper Carboniferous) Cyclothem Succession in Midcontinent Basin, U.S.A.: Kansas Geological Survey Open-file Report 99-27, p. 178-185.

Heckel, P. H., Boardman, D. R. , and Barrick, J. E., 1999, Proposed Desmoinesian-Missourian Stage boundary stratotype: in P. H. Heckel, ed., XIV-ICCP Field Trip #8: Middle and Upper Pennsylvanian (Upper Carboniferous) Cyclothem Succession in Midcontinent Basin, U.S.A.: Kansas Geological Survey Open-file Report 99-27, p. 186-198.

[st]Pope, J. P., and [s]Heckel, P. H., 1999, Listing of fossils recognized at field trip stops: in P. H. Heckel, ed., XIV-ICCP Field Trip #8: Middle and Upper Pennsylvanian (Upper Carboniferous) Cyclothem Succession in Midcontinent Basin, U.S.A.: Kansas Geological Survey Open-file Report 99-27, p. 217-236.

Heckel, P. H., and Villa, E., 1999, Proposals toward a consensus on a scientifically reasonable and internationally acceptable classification and nomenclature for the Carboniferous System: Newsletter on Carboniferous Stratigraphy, v. 17, p. 8-11.

Heckel, P.H., Alekseev, A.S., and Nemyrovska, T.I., 1998, Preliminary conodont correlations of late Middle to early Upper Pennsylvanian rocks between North America and eastern Europe: Newsletter on Carboniferous Stratigraphy, v. 16, p. 8-12.

Heckel, P.H., 1997, Overview of the Tully Limestone: in C.E. Brett and C.A. Ver Straeten, eds., Devonian Cyclicity and Sequence Stratigraphy in New York State, Field Trip Guidebook (for field conference of Subcommission on Devonian Stratigraphy), published through University of Rochester: p. 79-100.

Heckel, P.H., 1992 [updated and catalogued in 2002; listed previously as work in preparation under a slightly different title], Revision of Missourian (lower Upper Pennsylvanian) stratigraphy in Kansas and adjacent states: Kansas Geological Survey Open-file Report 92-60, 182 p.

Heckel, P.H., 1992, Allan P. Bennison Distinguished Service Award: Jour. Sedimentary Petrology, v. 62, p. 1175.

Heckel, P.H., and Pope, J.P., 1992, Stratigraphy and cyclic sedimentation of Middle and Upper Pennsylvanian strata around Winterset, Iowa: Iowa DNR, Geological Survey Bureau, Guidebook Series No. 14, 53 p.

Heckel, P.H., and Hatch, J.R., 1992, Comment on "Contrasting depositional models for Pennsylvanian black shale discerned from Molybdenum abundances" by R. M. Coveney et al.: Geology, v. 20, p. 88-89.

Heckel, P.H., and Weibel, C.P., 1991, Current status of conodont-based biostratigraphic correlation of Upper Pennsylvanian succession between Illinois and Midcontinent: Soc. Econ. Paleontologists & Mineralogists, Great Lakes Section, 21st Ann. Field Conf. Guidebook, p. 60-69 (Illinois State Geological Survey).

Heckel, P.H., 1991, Comment on "Pennsylvanian time scales and cycle periods" by G. deV. Klein: Geology, v. 19, p. 406-407.

Boardman, D.R., and [=] Heckel, P.H., 1991, Reply to Comment on "Glacial-eustatic sea-level curve for early Late Pennsylvanian sequence in north-central Texas and biostratigraphic correlation with curve for midcontinent North America": Geology, v. 19, p. 92-94.

Heckel, P.H., 1989, Overview of Upper Pennsylvanian cyclic sedimentation in Kansas and Nebraska: p. 1-10, in Late Pennsylvanian and Early Permian cyclic sedimentation, paleogeography, paleoecology and biostratigraphy in Kansas and Nebraska, ed. by R.K. Pabian & R.F. Diffendal, Nebraska Geological Survey.

Heckel, P.H., 1987, Reply to Comment on "Sea-level curve for Pennsylvanian eustatic marine transgressive-regressive depositional cycles along midcontinent outcrop belt, North America": Geology, v. 15, p. 276-278.

Heckel, P.H., Harris, J., and Watney, W.L., 1985, Recent advances in interpretation of Late Paleozoic cyclothems, Guidebook for Midcontinent SEPM Field Trip, October 12, 1985: Midcontinent Section, Soc. Econ. Paleontologists & Mineralogists, Proc. 3rd Ann. Mtg. & Fld. Conf., p. 23-69.

Heckel, P.H., 1985, Current view of Midcontinent Pennsylvanian cyclothems: Midcontinent Section, Soc. Econ. Paleontologists & Mineralogists, Proc. 3rd Ann. Mtg. & Fld. Conf., p. 1-22.

[st] Swade, J.W., and [=] Heckel, P.H., 1984. A brief summary of the conodont biostratigraphy of the Marmaton Group (Upper Desmoinesian), Midcontinent outcrop belt: Tulsa Geol. Soc. Field Trip, May 4-5, 1984, Guidebook. "Upper Pennsylvanian source beds of northeastern Oklahoma and adjacent Kansas," p. 48-49.

Heckel, P.H., [st] Price, R.C., and [st] Schutter, S.R., 1980, glacial eustatic model for black-shale-bearing Pennsylvanian cyclothems of Midcontinent and Illinois: in Middle and Late Pennsylvanian Strata on Margin of Illinois Basin, edited by R.L. Langenheim & C.J. Mann: Great Lakes Section, Soc. Econ. Paleontologists & Mineralogists, Tenth Annual Field Conference, p. 139-157.

Heckel, P.H., 1980, Field Guide to Upper Pennsylvanian cyclothems in south-central Iowa: Geological Society of Iowa, field trip along Middle River Traverse, Madison County, Iowa, 27 p.

Heckel, P.H., Brady, L.L., Ebanks, W.J., Jr., and Pabian, R.K., 1979, Field guide to Pennsylvanian cyclic deposits in Kansas and Nebraska: Kansas Geol. Survey Guidebook Series 4, p. 1-60.

Cubitt, J.M., [m] Heckel, P.H., Delsignore, A.G., and Wooldridge, M.,1978, The Tully Limestone of central New York - stratigraphy and facies variation: New York State Geol. Assoc. 50th Ann. Meeting Guidebook, p. 273-285.

[st] Ravn, R.L., and Heckel, P.H., 1978, Algal sparite facies in Captain Creek Limestone: Kansas Geol. Survey Guidebook Series 2, p. 70-75.

Heckel, P.H., 1978, Field guide to Upper Pennsylvanian cyclothemic limestone facies in eastern Kansas: Kansas Geol. Survey Guidebook Series 2, p. 2-69, 76-79.

Heckel, P.H., Kettenbrink, E.C., and Klapper, G., 1975, Trip #1: Devonian limestone facies: Cedar Valley and State Quarry Limestones in Iowa City region: 39th Ann. Tri-State Geol. Field Conference Guidebook, p. 1-19.

Heckel, P.H., 1975, Field guide to Stanton Formation (Upper Pennsylvanian) in southeastern Kansas: Kansas Geological Society 31st Regional Field Conference Guidebook, "Upper Pennsylvanian limestone facies in southeastern Kansas," p. 2-71.

Heckel, P.H., 1968, Limestone facies in the Kansas City and Lansing Groups (Missourian, Upper Pennsylvanian) in southwestern Iowa: Geol. Soc. America, Field Trip Guidebook, Ann. Meeting North-Central Section, Iowa City, p. 4-29 to 4-41.

PUBLISHED ABSTRACTS [Presentations at meetings and other professional venues follow]

Total: 75 titles (33 as sole author, 12 as senior author, 30 as junior author)

Lambert, L.L., Barrick, J.E., and [s]Heckel, P.H., 2002, Lower and Middle Pennsylvanian zonation for Midcontinent North America: Geological Society of America, North-Central and Southeastern Sections, Joint Annual Meeting, Lexington, KY, Abstracts, v. 34, No 2, p. A-27.

Belt, E.S., Lyons, T.W., Friedrichs, C.T., Martino, R.L., and [m]Heckel, P.H., 2002, Upper Freeport roof shales, Appalachian Basin: Geological Society of America, Northeastern Section, Annual Meeting, Springfield, MA, Abstracts, v. 34, No. 1, p. A-63.

[st] Obrad, J.M., Gonzalez, L.A., and [s]Heckel, P.H., 2001, Stratigraphic variation in oxygen and carbon isotope composition within one glacial-eustatic Pennsylvanian cyclothem in Midcontinent North America [abstract]: Geological Society of America, Annual Meeting, Boston, November, 2001, Abstracts: v. 33, No. 6, p. A-445.

Feldman, H.R., Franseen, E.K., Joeckel, R.M., [s]Heckel, P.H., and Archer, A.W., 2001, Longer-term climate cyclicity in the Midcontinent Pennsylvanian succession of high-frequency sequences (glacial-eustatic cyclothems): impact on sequence architecture [abstract]: AAPG Annual Convention, Denver, June 3-6, 2001, Official Program, v. 10, p. A61.

[st] Goettemoeller, A.E., and Heckel, P.H., 1999, Sequence stratigraphy and environments of Millersville Limestone Member of Bond Fm. (Upper Pennsylvanian), south-central Illinois: Geological Society of America, North-Central Section, Abstracts, v. 31, No. 5, p. A-17.

Heckel, P.H., 1999, Overview of Pennsylvanian (Upper Carboniferous) glacial-eustatic cyclothems on a global scale: XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, Program with Abstracts, p. 52.

Heckel, P.H., and Villa, E., 1999, Proposal toward consensus on names and rank of two basic subdivisions of Carboniferous System: XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, Program with Abstracts, p. 54.

Heckel, P.H., and Villa, E., 1999, Proposal toward consensus on further subdivision of the two subsystems of the Carboniferous System: XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, Program with Abstracts, p. 53.

Heckel, P.H., Boardman, D.R., and Barrick, J.E., 1999, Proposal for Desmoinesian-Missourian Stage boundary stratotype, a candidate for a GSSP: XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, Program with Abstracts, p. 53.

Heckel, P.H., 1998, Sequence stratigraphic implications of late Middle to Upper Pennsylvanian glacial-eustatic Appalachian cyclothems: Geological Society of America, North Central Section, Abstracts with Programs, v. 30, no. 2, p. 22.

[st] Pope, J.P., and Heckel, P.H., 1998, Preliminary evidence for possible tectonic control over a Pennsylvanian marine cyclothem in southwestern Illinois: Geological Society of America, North Central Section, Abstracts with Programs, v. 30, no 2, p. 67.

Lane, H.R., [s] Heckel, P.H., Brenckle, P., Boardman, D.R., and Barrick, J.E., 1998, Carboniferous conodont evolution and extinction events: Geological Society of America, North Central Section, Abstracts with Programs, v. 30, no. 2, p. 30.

Ritter, S.M., Barrick, J.E., [m] Heckel, P.H., and Lambert, L.L., 1998, Conodont biostratigraphy of Late Carboniferous—Early Permian depositional sequences: Geological Society of America, North Central Section, Abstracts with Programs, v. 30, no. 2, p. 68.

Boardman, D.R., and [m]Heckel, P.H., 1996, Interbasinal correlation of Late Pennsylvanian 4th order (105-year) depositional sequences from north-central Texas to Illinois basin: a test for eustasy and relative shelf elevation (abstract): Geol. Soc. America Abstracts, v. 28, no. 1, p. 5.

Heckel, P.H., 1995, Stratigraphic units and features formed during sea-level drop (forced regression) in Pennsylvanian glacial-eustatic cyclothems from Midcontinent to Appalachian basin (abstract): Geol. Soc. America Abstracts, v. 27, no. 3, p. 57.

Heckel, P.H., 1994, Eustatic and possible tectonic controls over depositional architecture of Pennsylvanian basin filling on northern Midcontinent shelf and basin margin (abstract): Amer. Assoc. Petroleum Geologists 1994 Annual Convention, Denver, Abstracts, p. 168.

French, J.A., and [=] Heckel, P.H., 1994, Probable high-amplitude glacial-eustatic origin for Pennsylvanian cyclothems requires modification of applied sequence-stratigraphic classification and terminology (abstract): Amer. Assoc. Petroleum Geologists 1994 Annual Convention, Denver, Abstracts, p. 152.

[st] Xiong, B., Gonzalez, L.A., and [s]Heckel, P.H., 1994, Reversal of fortune--paleotopographic control over diagenetic gradients: example from Stanton cyclothem in northern midcontinent (abstract): Geol. Soc. America Abstracts, v.26, No. 5, p. 68-69.

Heckel, P.H., 1993, Global implications of glacial eustasy as the main control over Pennsylvanian stratigraphy (abstract): Society for Sedimentary Geology (SEPM), 1993 Meeting, Stratigraphic Record of Global Change, Penn State University, Abstract with Program, p. 22.

Heckel, P.H., 1993, Sequence-stratigraphic implications of glacial-eustatic Pennsylvanian cyclothems in North America (abstract): Geol. Soc. America Abstracts, v. 25, no. 1, p. 13.

Heckel, P.H., 1992, Glacial-eustatic/climatic model for Upper Pennsylvanian marine and nonmarine cyclothems in the Appalachian basin (abstract): Geol. Soc. America Abstracts, v. 24, no. 7, p. A32.

[st] Xiong, B., and Heckel, P.H., 1992, Diagenetic cements in transgressive and regressive limestone members of the Stanton Limestone (Upper Pennsylvanian), northern Midcontinent (abstract): Geol. Soc. America Abstracts, v. 24, no. 7, p. A56.

[st] Fahrer, T.R., and Heckel, P.H., 1992, Petrology and depositional significance of Conemaugh marine units in the Appalachian basin (abstract): Geol. Soc. America Abstracts, v. 24, no. 7, p. A321.

Barrick, J.E., [m] Heckel, P.H., and Boardman, D.R., 1992, Morphologic evolution in early Missourian (Pennsylvanian) species of Idiognathodus and the origin of Streptognathodus (conodonts) (abstract): Geol. Soc. America, North-Central Section, Abstracts, v. 24, no. 4, p. 4-5.

[st] Bisnett, A.J., and Heckel, P.H., 1992, Use of sequence stratigraphy along with petrology and fossil content to distinguish offshore from nearshore black shales (abstract): Geol. Soc. America, North-Central Section, Abstracts, v. 24, no. 4, p. 6.

[st] Felton, R.M., and Heckel, P.H., 1992, Internal stratigraphy of Winterset Limestone Member, Dennis Formation (Pennsylvanian, Missourian) in northern Midcontinent (abstract): Geol. Soc. America, North-Central Section, Abstracts, v. 24, no. 4, p. 14.

[st] Xiong, B., and Heckel, P.H., 1992, Cementation patterns in Stanton Limestone/cyclothem (Missourian, Upper Pennsylvanian) in northern Midcontinent (abstract): Geol. Soc. America, North-Central Section, Abstracts, v. 24, no. 4, p. 73.

Heckel, P.H., Barrick, J.E., Boardman, D.R., Lambert, L.L., Watney, W.L., and Weibel, C.P., 1991, Biostratigraphic correlation of eustatic cyclothems (basic Pennsylvanian sequence units) from Midcontinent to Texas and Illinois (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 75, p. 592-593.

Lambert, L.L., [m] Heckel, P.H., Watney, W.L., Stevenson, G.M., Barrick, J.E., and Boardman, D.R., 1991, Precision correlation of Kansas Pennsylvanian cyclothems emphasizing wire-line logs and conodonts in a sequence stratigraphic framework (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 75, p. 616.

Heckel, P.H., 1991, Evidence for glacial-eustatic control over Pennsylvanian cyclothems in midcontinent North America and tests for tectonic effects (abstract): Geol. Soc. America Northeastern/Southeastern sections, Abstracts w. program, v. 23, p. 43.

Barrick, J.E., Boardman, D.R., and [m] Heckel, P.H., 1990, Biostratigraphic recognition and global correlation of the Middle-Upper Pennsylvanian boundary based on the conodont Idiognathodus (abstract): Geol. Soc. America Abstracts w. Programs, v. 22, p. A46.

Heckel, P.H., 1989, Evidence for glacial-eustatic control over Pennsylvanian cyclothems in midcontinent North America (abstract): Geol. Soc. America Abstracts w. Programs, 1989, v. 21, p. A36.

Boardman, D.R., Barrick, J.E., and [s] Heckel, P.H., 1989, Proposed redefinition of the Missourian-Virgilian stage boundary (Late Pennsylvanian), midcontinent North America (abstract): Geol. Soc. America Abstracts w. Programs, 1989, v. 21, p. A168.

Lambert, L.L., and [s]Heckel, P.H., 1989, The Atokan/Desmoinesian boundary: Considerations for locating a boundary stratotype (abstract): International Union of Geological Sciences, Subcommission on Carboniferous Stratigraphy: Proceedings for Provo Meeting, Sept. 26-27, 1989, Part 2, Upper Carboniferous, 2 pages, unnumbered.

Heckel, P.H., Boardman, D.R., Barrick, J.E., and Peppers, R.A., 1989, Statement on current understanding of Desmoinesian-Missourian boundary in midcontinent North America (abstract): International Union of Geological Sciences, Subcommission on Carboniferous Stratigraphy: Proceedings for Provo Meeting, Sept. 26-27, 1989, Part 2, Upper Carboniferous, 2 pages, unnumbered.

Heckel, P.H., 1989, Evidence for glacial-eustatic control over Pennsylvanian cyclothems in Midcontinent North America and resulting stratigraphic patterns from shelf to basin -- some examples of "ground truth" for computer modeling: Kansas Geol. Survey, Subsurface Geology Series 12, p. 65-66.

Gooden-Seay, J.A., Cuffey, R.J., and [m] Heckel, P.H., 1989, Bryozoan reef-rock in a Late Pennsylvanian tidal channel in southeastern Kansas (abstract): International Bryozoology Association, 8th International Conf., Paris 1989, Abstracts Volume, p. 12.

Heckel, P.H., 1989, Evidence for global (glacial-eustatic) control over Upper Carboniferous (Pennsylvanian) cyclothems in Midcontinent North America (abstract): Abstracts for a conference on "Tectonic Events Responsible for Britain's Oil and Gas Reserves" sponsored by the Petroleum Exploration Society of Great Britain, May 21-23, 1989, Bath, England.

Heckel, P.H., 1989, Thin widespread Pennsylvanian black shales of Midcontinent North America, a record of a cyclic succession of widespread pycnoclines in a fluctuating epicontinental sea (abstract): Abstracts and Programme for conference on "Modern and Ancient Continental Shelf Anoxia" sponsored by The Geological Society of London, May 17-19, 1989, London.

Heckel, P.H., 1989, Implications for Texas of glacial eustatic control over Middle and Upper Pennsylvanian cyclothems in Midcontinent North America (abstract): Geology Soc. America, South-Central Section, Prog. w. Abst., v. 21, p. 14.

Boardman, D.R., and [=] Heckel, P.H., 1988, Glacial-eustatic sea-level curve for Pennsylvanian of north-central Texas and biostratigraphic correlation with curve for Midcontinent (abstract): Geol. Soc. America, North-Central Section, Prog. w. Abst., v. 20, p. 335-336.

Heckel, P.H., 1988, Preliminary conodont biostratigraphic characterization of Middle-Upper Pennsylvanian eustatic cyclic sequence in Midcontinent North America (abstract): Geol. Soc. America, North-Central Section, Prog. w. Abst. v. 20, p. 347.

Heckel, P.H., 1988, Relations of basinward stratigraphy of Midcontinent Pennsylvanian cyclothems to amount of sea-level drop during regression (abstract): Geol. Soc. America, South-Central Section, Prog. w. Abst., v. 20, p. 101-102.

Heckel, P.H., 1987, Middle-Upper Pennsylvanian glacial-eustatic sea-level curve for Midcontinent North America and potential for large-scale correlation (abstract): 11th International Congress of Carboniferous Stratigraphy and Geology, Beijing, China, Abstracts of Papers (II), p. 429-430.

Witzke, B.J., and [s]Heckel, P.H., 1987, Paleoclimatic indicators and inferred Devonian paleolatitudes of Euramerica (abstract): Second International Symposium on the Devonian System, Canadian Society of Petroleum Geologists, Calgary, Alberta, Program and Abstracts, p. 250.

Heckel, P.H., 1985, Middle and Upper Pennsylvanian cyclothems of Midcontinent North America, a record of glacial-eustatic periodicity (abstract): Abstracts for Research Symposium, "Cycles and Periodicity in Geologic Events, Evolution and Stratigraphy", in honor of A.G. Fischer & F.G. Van Houten, Princeton Univ. Dept. of Geological and Geophysical Sciences, p. 16.

Heckel, P.H., 1984, Current view of the Pennsylvanian System in Iowa (abstract): Iowa Acad. Science, Prog., Abst. #G, 96th Session, Iowa City, April 27-28.

[st] Nielsen, M.A., and Heckel, P.H., 1984, Stratigraphy and petrology of the Exline Limestone (Pleasanton Group, Upper Pennsylvanian) in southern Iowa and northern Missouri (abstract): Iowa Acad. Science, Prog., Abst. #131, 96th Session, Iowa City, April 27-28.

[st] Schutter, S.R., and Heckel, P.H., 1983, Missourian (early Late Pennsylvanian) climate in Midcontinent North America (abstract): Geol. Soc. America Abst. w. Prog., v. 15, p. 681.

Heckel, P.H., 1982, Diagenetic model for carbonate rocks in Mid-Continent Pennsylvanian eustatic cyclothems (abstract): Amer. Assoc. Petroleum Geologists Bulletin, v. 66, p. 580.

Heckel, P.H., 1982, Offshore deposition of thin widespread Midcontinent Pennsylvanian phosphatic black shales (abstract): Cleveland Museum of Natural History, and Department of Geological Sciences, Case Western Reserve University (sponsors): "Conference on Sedimentology and Paleontology of Mid-Continent Black
Shales", Cleveland, May 7-8, 1982: Program & Abstracts, p. 11-12.

Heckel, P.H., and [st] Witzke, B.J., 1982, Paleoclimatic reconstruction of Devonian world paleogeography (abstract): Sedimentology Division, Canadian Society of Petroleum Geologists, Sedimentology Conference in Honour of Dr. H.R. Belyea, "Major Controls on Devonian Stratigraphy and Sedimentation", Calgary March 18-19, 1982: Program & Abstracts, p. 4-5.

Heckel, P.H., and Meacham, J.F., 1981, New data on Missourian (Upper Pennsylvanian) stratigraphy of the Forest City Basin, southwestern Iowa and adjacent Nebraska (abstract): Geol. Soc. America Abst. w. Programs, v. 13, p. 280.

Heckel, P.H., and Pabian, R.K., 1981, Compatibility of crinoid faunas with eustatic model for deposition of Midcontinent Pennsylvanian cyclothems (abstract): Geol. Soc. America. Abst. W. Programs v. 13, p. 281.

Heckel, P.H., 1980, Paleogeography of eustatic model for deposition of Mid-Continent Upper Pennsylvanian cyclothems (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 64, p. 721.

Heckel, P.H., 1979, Changing concepts of Midcontinent Pennsylvanian cyclothems, North America (abstract): 9th Internat. Cong. Carboniferous Strat. & Geol., Urbana, Abstracts, p. 87-88.

[st] Ravn, R.L., [st] Mitchell, J.C., [st] Nelson, D.L., and [s]Heckel, P.H., 1978, Early submarine cement as potential void-supporting framework in Pennsylvanian algal mounds of Kansas (abstract): Geol. Soc. America Abst. w. Programs, v. 10, p. 476.
von Bitter, P.H., and [s]Heckel, P.H., 1978, Differentiation of black "core" shales in Missourian and Virgilian cyclothems (Pennsylvanian) in Iowa and Kansas, using conodonts (abstract): Geol. Soc. America Abst. w. Programs, v. 10, p. 510.

Heckel, P.H., and [st] Witzke, B.J., 1978, Devonian carbonate facies (abstract): Palaeontological Association International Symposium on the Devonian System 1978, Abstracts, p. 7.

Heckel, P.H., and [st] Swade, J.W., 1977, Two types of Midcontinent Pennsylvanian black shales and their respective conodont faunas (abstract): Geol. Soc. America Abst. w. Programs, v. 9, p. 604.

[st] Wood, R.H., Jr., and Heckel, P.H., 1977, Significance of conodont distribution in the Stanton cyclothem (Missourian, Upper Pennsylvanian) in eastern Kansas (abstract): Geol. Soc. America Abst. w. Programs, v. 9, p. 667-668.

Heckel, P.H., 1976, Significance of vertical sequence, lateral change, and phosphatic black shale facies in Midcontinent Upper Pennsylvanian megacyclothems (abstract): Geol. Soc. America Abst. w. Programs, v. 8, p. 911.

Heckel, P.H., and O'Brien, G. D., 1975, Silurian reefs of Great Lakes region of North America: Preface: Amer. Assoc. Petroleum Geologists Reprint Ser. 14, p. 2-3.

Heckel, P.H., 1971, Upper Pennsylvanian phylloid algal-invertebrate stratigraphic reefs in Kansas (abstract): VIII Internat. Sedimentol. Congress, Heidelberg, Program, p. 40.

Wilson, A.O., and [s]Heckel, P.H., 1971, Quantitative comparison of carbonate members of Shawnee Group megacyclothems (Upper Pennsylvanian), eastern Kansas (abstract): VIII Internat. Sedimentol. Congress, Heidelberg, Program, p. 109.

Heckel, P.H., 1970, Organic carbonate buildups in epeiric seas: some theoretical aspects (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 54, p. 851-852.

Heckel, P.H., 1970, Organic carbonate buildups in epeiric seas: some theoretical aspects (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 54, p. 851-852.

Heckel, P.H., 1969, Recognition of shallow marine environments (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 53, p. 721-722.

Heckel, P.H., 1968, Basic facies pattern of outcropping Upper Pennsylvanian limestones in the Midcontinent (abstract): Geol. Soc. America, Prog. Ann. Meetings, Mexico City, p. 132.

Heckel, P.H., 1967, Reef-like carbonate complex in the Tully Limestone (Devonian) in New York (abstract): Alberta Soc. Petroleum Geologists, Abstracts Proc. International Symposium on the Devonian System, p. 67.

Heckel, P.H., 1966, Relationship of carbonate facies in an algal mound complex in Upper Pennsylvanian of Kansas (abstract): Geol. Soc. America Prog. Ann. Meetings, San Francisco, p. 90-91; reprinted 1968, Geol. Soc. America Spec. Paper 101, p. 90-91.

Heckel, P.H., 1965, Apparent structural control of Tully Limestone deposition in the Devonian Catskill Delta complex of New York State (abstract): Geol. Soc. America Prog. Ann. Meetings, Kansas City, p. 75; reprinted Geol. Soc. America Spec. Paper 87, p. 76.

Heckel, P.H., 1965, Apparent structural control of Tully Limestone deposition in the Devonian Catskill Delta complex of New York State (abstract): Geol. Soc. America Prog. Ann. Meetings, Kansas City, p. 75; reprinted Geol. Soc. America Spec. Paper 87, p. 76.

Heckel, P.H., 1963, Depositional environment of the Devonian Tully Limestone of central New York (abstract): Amer. Assoc. Petroleum Geologists Bull., v. 47. p. 360.

Heckel, P.H., and Reso, A., 1961, Silurian and Lower Devonian section in the southwestern part of the Delamar Range, Lincoln County, Nevada (abstract): Geol. Soc. America Spec. Paper 68, p. 32.

MANUSCRIPTS ACCEPTED FOR PUBLICATION

Lambert, L.L., [s]Heckel, P.H., and Barrick, J.E., Swadelina new genus (Pennsylvanian Conodonta), a taxon with potential chronostratigraphic significance: Micropaleontology, scheduled for 2003

MANUSCRIPTS SUBMITTED FOR PUBLICATION

Heckel, P.H., Background on Pennsylvanian stratigraphy, cyclothems and conodont biostratigraphy in Midcontinent North America: in P.H. Heckel and others, leaders, Field Trip 3: Conodont-Rich Pennsylvanian Dark Shales of the Kansas City Region, Geological Society of America, North-Central Section Annual Meeting, Kansas City, MO, March 23, 2003

Heckel, P.H., and others, Description of field trip stops: in P.H. Heckel and others, leaders, Field Trip 3: Conodont-Rich Pennsylvanian Dark Shales of the Kansas City Region, Geological Society of America, North-Central Section Annual Meeting, Kansas City, MO, March 23, 2003

Heckel, P.H., Lambert, L.L., Barrick, J.E., and Pope, J.P., Comments on localities and stratigraphic units from which Gunnell (1931, 1933) and Ellison (1941) named new Pennsylvanian conodonts in the Kansas City region: in P.H. Heckel and others, leaders, Field Trip 3: Conodont-Rich Pennsylvanian Dark Shales of the Kansas City Region, Geological Society of America, North-Central Section Annual Meeting, Kansas City, MO, March 23, 200

Watney, W.L., and [=]Heckel, P.H., Revision of stratigraphic nomenclature and classification of the Marmaton Group in Kansas: Kansas Geological Survey. [in review]

ABSTRACTS SUBMITTED/ACCEPTED

[st]Dowd, H.M., Gonzalez, L.A., and [s]Heckel, P.H., Carbon stable isotope patterns in the Pawnee cyclothem, Middle Pennsylvanian of Midcontinent North America: Geological Society of America, North-Central Section Annual Meeting, Kansas City, MO.

Lambert, L.L., [=]Heckel, P.H., and Barrick, J.E., New insights on the locality and material for the first Pennsylvanian conodont paper published in North America: Geological Society of America, North-Central Section Annual Meeting, Kansas City, MO.

WORK IN PREPARATION

Heckel, P.H., Overview of Pennsylvanian succession in central and eastern North America: for Carboniferous of the World, v. IV, a publication of the International Union of Geological Sciences [IUGS].

Heckel, P.H., Pennsylvanian stratigraphy on northern shelf of Midcontinent Basin: for Carboniferous of the World, v. IV, a publication of the IUGS.

Heckel, P.H., Weibel, C.P., and [st]Pope, J.P., Description and correlation of Upper Pennsylvanian strata recently exposed in northern Illinois: Illinois State Geological Survey.

Barrick, J.E., [s]Heckel, P.H., and Boardman, D.R., Latest Desmoinesian and early Missourian species of Idiognathodus and Streptognathodus from Midcontinent Basin: for Journal of Paleontology. (in intermediate draft form)

EXTERNAL GRANTS AND OTHER FUNDING OBTAINED TO SUPPORT RESEARCH PROGRAM

Total is about $195,000 (I was P.I. on all; many were to support student field work)

National Science Foundation (G291)
(1991-1994) Grant to fund research on ancient soil interval (paleosol) correlated among Midcontinent, Texas, Illinois and Appalachians; supported graduate student R.M. Joeckel's dissertation work for 2 years ($67,165).

American Chemical Society -- Petroleum Research Fund (Q456, T711)
Grant for stipends for 4 students, plus lab supplies, 1982-1985 ($30,000)

Allan and DeLeo Bennison Field Research Fund
(U of I Foundation account 30-152-12) Field expenses and loans for several student projects in Midcontinent, 1983-1991 ($3975)

Missouri Geological Survey
Grant for field work for student project in Missouri, 1985 ($650)

Amoco Production Company (Q103)
Grant to support microprobe analyses for thesis by M. W. Edson, 1983 ($1,500). Supplied carbon and oxygen isotope analyses to M. W. Edson without charge, 1983-1984 (est. value $1,500). Balance used to support analyses for dissertation by B. Xiong.

Chevron Oil Field Research Company (Q103)
Grant to support research on carbonate diagenesis, 1983 ($2,500)

Oklahoma Geological Survey
Grants for field work for 6 student projects in Oklahoma, 1978-1983 (est. value $3,600)

Kansas Geological Survey
Summer Salary for P.H. Heckel, 1 or 2 months per year, 1972-1989 (value $60,472)
Field Expenses for P.H. Heckel in Kansas, 1972-present (value $5004.60)
Field expenses for 23 student projects in Kansas, 1974-present (est. value $14,000)
Contract Grant (Q-871) for 1 student for lab work on Kansas rocks, 1984-85 ($4,000)

PRESENTATIONS

INVITED PAPERS PRESENTED AT PROFESSIONAL SOCIETY MEETINGS:

Total, 1969-1999: 22 invited presentations.

International [7]:

“Overview of Pennsylvanian (Upper Carboniferous) glacial-eustatic cyclothems on a global scale” as the keynote presentation for an invited symposium on ‘Cyclothems’ at the XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, August 18, 1999.

"Evidence for global (glacial-eustatic) control over Upper Carboniferous (Pennsylvanian) cyclothems in Midcontinent North America," at a conference on Tectonic Events Responsible for Britain's Oil and Gas Reserves, sponsored by the Petroleum Exploration Group of the Geological Society of London, Bath, England, May 22, 1989.

"Thin widespread Pennsylvanian black shales of Midcontinent North America, a record of a cyclic succession of widespread pycnoclines in a fluctuating epicontinental sea," at a meeting on Modern and Ancient Continental Shelf Anoxia, organized by the Marine Studies Group of the Geological Society of London, London, England, May 19, 1989.

"Paleoclimatic reconstruction of Devonian world paleogeography", a keynote address at Canadian Society of Petroleum Geologists Conference on Major Controls on Devonian Stratigraphy and Sedimentation, Calgary, Alberta, March 18, 1982.

"Devonian carbonate facies" a keynote address at International Symposium on the Devonian System 1978, sponsored by the Palaeontological Society Bristol, England, September, 1978.

"Upper Pennsylvanian phylloid algal-invertebrate stratigraphic reefs in Kansas" at VIII International Sedimentological Congress, Heidelberg, Germany, August 30-September 4, 1971.

"Organic carbonate buildups in epeiric seas: some theoretical aspects" at S.E.P.M. Research Committee Symposium on "Reef complexes in time and space" at national meeting of A.A.P.G. and S.E.P.M., Calgary, Alberta, Canada, June 23, 1970.

National [15]:

“Sequence stratigraphic implications of late Middle to Upper Pennsylvanian glacial-eustatic Appalachian cyclothems” at annual meeting of North Central Section of Geological Society of America, Columbus, Ohio, March 20, 1998.

"Stratigraphic units and features formed during sea-level drop (forced regression) in Pennsylvanian glacial-eustatic cyclothems from Midcontinent to Appalachian basin", at combined North-Central and South Central section meetings of Geological Society of America, Lincoln, Nebraska, April 28, 1995.

"Sequence-stratigraphic implications of glacial-eustatic Pennsylvanian cyclothems in North America" at symposium on Sequence Stratigraphy of Cratonic Cycles”, at annual meeting of South-Central Section of Geological Society of America, Fort Worth, Texas, March 15, 1993.

"Glacial-eustatic/climatic model for Upper Pennsylvanian marine and nonmarine cyclothems in the Appalachian basin" at the Coal Geology Division Symposium on Physical and chemical responses to allocyclic process in Carboniferous coal-bearing strata, at the Annual Meeting of the Geological Society of America, Cincinnati, Ohio, October 26, 1992.

"Carboniferous of the Midcontinent" at Predictive Stratigraphic Analysis (PSA) Workshop II sponsored by U.S. Geological Survey and Kansas Geological Survey, Lawrence, Kansas, June 24, 1991.

"Evidence for glacial-eustatic control over Pennsylvanian cyclothems in Midcontinent North America and tests for tectonic effects" at a symposium on Sedimentary-cycle control: Tectonics versus Eustasy at the combined annual meeting of Eastern Section SEPM, and Southeastern and Northeastern Sections of Geological Society of America, Baltimore, Maryland, March 16, 1991.

"Evidence for glacial-eustatic control over Pennsylvanian cyclothems in Midcontinent North America and resulting stratigraphic patterns from shelf to basin--some examples of `ground truth' for computer modeling," at a conference on Sedimentary Modeling, sponsored by the Kansas Geological Survey for its Centennial Celebration, Lawrence, Kansas, October 13, 1989.

"Current view of Midcontinent Pennsylvanian cyclothems", banquet speech at Midcontinent Section SEPM Annual Meeting, Lawrence, Kansas, October 11, 1985.

"Middle and Upper Pennsylvanian cyclothems of Midcontinent North America, a record of glacial-eustatic periodicity" at Research Symposium "Cycles and Periodicity in Geologic Events, Evolution and Stratigraphy" in honor of A. G. Fischer and F. B. Van Houten on occasion of their retirement, Princeton University Department of Geophysical Sciences, Princeton, New Jersey, May 9, 1985.

"Paleoclimatic reconstruction of the Devonian World", banquet speech at Geological Society of Iowa Fall Field Trip, Cedar Falls, Iowa, September 22, 1984.

"Current view of Pennsylvanian System in Iowa" at Iowa Academy of Science Symposium on Iowa Geology, Iowa City, Iowa, April 27, 1984.

"Missourian (early Late Pennsylvanian) climate in Midcontinent North America" (with S. R. Schutter) at Annual Meeting of Geological Society of America, Symposium on Paleoclimatic Controls on Coal Resources of the Pennsylvanian System of North America, Indianapolis, Indiana, October 31, 1983.

"Offshore deposition of thin widespread Midcontinent phosphatic black shales" at Cleveland Museum of Natural History, Conference on Sedimentology and Paleontology of Mid-Continent Black Shales, Cleveland, Ohio, May 7, 1982.

"Paleogeography of eustatic model for deposition of Midcontinent Upper Pennsylvanian cyclothems" at a symposium on "Paleozoic Paleogeography of West-Central United States" at national meeting of AAPG and SEPM, Denver, Colorado, June 10, 1980.

"Recognition of shallow marine environments" at S.E.P.M. Research Committee Symposium on "Environmental Indicators" at national meeting of A.A.P.G. and S.E.P.M., Dallas, Texas, April 15, 1969.

INVITED LECTURES AT UNIVERSITIES, SOCIETIES, AND RESEARCH GROUPS:

Total, 1967-2002, 45 invited lectures.

Geological Institute, Uralian research Center, Russian Academy of Sciences, Ufa, Russia, “Current view of correlation of stage boundaries in Pennsylvanian Subsystem of Carboniferous System”, August 16, 2002.

Department of Geology, University of Oviedo, Oviedo, Spain, “New proposal for series and stage subdivision of Carboniferous System”, September 28, 2000.

Kansas Geological Society, Wichita, Kansas, “Global nature of Pennsylvanian glacial-eustatic cyclothems”, November 13, 1998

Department of Paleontology, Geology Faculty, Moscow State University, Moscow, Russia, “North American Stages of the Pennsylvanian (Upper Carboniferous) and their possible correlation with Russian stages”, August 14, 1998

Cedar valley Rock and Mineral Club, Cedar Rapids, Iowa, “Geological excursion to northern Spain”, April 15, 1998.

University of Missouri-Columbia, Department of Geological Sciences, Columbia, Missouri, "Pennsylvanian cyclothems are worldwide", March 28, 1997.

Southern Illinois University at Carbondale, Department of Geology, Carbondale, Illinois, "Evidence for glacial-eustatic control over Pennsylvanian cyclothems in Midcontinent North America", October 11, 1991.

Association of Missouri Geologists, Annual Meeting and Field Trip, Nevada, Missouri, "Glacio-eustatic sea-level variation and cyclic sedimentation during the Pennsylvanian", (banquet lecture) September 27, 1991.

University of Illinois at Champaign-Urbana, Department of Geology, Urbana, Illinois. "Evidence for glacial-eustatic control over Pennsylvanian cyclothems in midcontinent North America", April 20, 1990.

University of Arizona, Department of Geosciences, Tucson, Arizona, "Evidence for glacial-eustatic control over Midcontinent Pennsylvanian cyclothems", September 7, 1989.

University of Iowa Chapter of Sigma Xi, Annual banquet and meeting, Iowa City, "Pennsylvanian cyclothems of Midcontinent North America: Evidence from a then-tropical continent for 300-million-year-old polar glaciation", April 28, 1988.

Amoco Production Company Research Center, Tulsa, Oklahoma, "Glacial-eustatic model for Midcontinent Pennsylvanian deposition and preliminary biostratigraphic correlation using conodonts", October 19, 1987.

University of Chicago, Geophysical Sciences Colloquium, Chicago, Illinois, "Odyssey of Black Shales in Midcontinent Pennsylvanian cyclothems", January 11, 1985.

Kansas State University, Department of Geology, Manhattan, Kansas, "A new look at Midcontinent Pennsylvanian Cyclothems", October 26, 1984.

Kansas University, Department of Geology, Lawrence, Kansas, "Odyssey of Black Shales in Midcontinent Pennsylvanian Cyclothems", October 25, 1984.

Rice University, Geology Department, Houston, Texas, first annual Carey Croneis Alumni Lecturer: "The Odyssey of Black Shales in Midcontinent Pennsylvanian Cyclothems", March 24, 1984.

Nebraska Geological Society, Lincoln, Nebraska, "A new look at Pennsylvanian cyclothems", September 15, 1983.

Tulsa Geological Society, Tulsa, Oklahoma, "Factors in Midcontinent Pennsylvanian limestone deposition", May 24, 1983.

Kansas Geological Society, Wichita, Kansas, "Depositional and diagenetic model for Midcontinent Pennsylvanian cyclothems", March 25, 1982.

Wichita State University, Geology Department, Wichita, Kansas, "Changing concepts of Midcontinent Pennsylvanian cyclothems", March 25, 1982.

Chevron Oil Field Research Company, La Habra, California, "Depositional and diagenetic model for Midcontinent Pennsylvanian eustatic cyclothems", March 12, 1982.

Union Oil Company Research Laboratory, Brea, California, "Depositional and diagenetic model for Midcontinent Pennsylvanian eustatic cyclothems", March 11, 1982.

Northern Illinois University, Geology Department, De Kalb, Illinois, "Midcontinent Pennsylvanian cyclothems", November 30, 1981.

University of North Carolina, Geology Department, Chapel Hill, N. Carolina, "Changing concepts of Midcontinent Pennsylvanian Cyclothems", February 26, 1981.

University of Indiana, Geology Department, Bloomington, Indiana, "A new look at Midcontinent Pennsylvanian cyclothems", September 25, 1980.

University of Illinois, Geology Department, Urbana, Illinois, "Changing concepts of Midcontinent Pennsylvanian cyclothems", April 25, 1980.

University of Kentucky, Geology Department, Lexington, Kentucky, first annual McFarland lecture "A new look at Midcontinent Pennsylvanian cyclothems" and a class presentation "Carbonate sediment distribution and Devonian continental positions", April 3, 1980.

Knox College, Geology Department, Galesburg, Illinois, "A new look at Midcontinent Pennsylvanian cyclothems", February 29, 1980.

University of North Dakota, Geology Department, Grand Forks, North Dakota, "A new look at Midcontinent Pennsylvanian cyclothems" and "A paleoclimatologic reconstruction of Devonian continental positions", November 30-31, 1979.

University of Kansas, Geology Department, Lawrence, Kansas, "Concepts of Midcontinent Pennsylvanian cyclothems", October 26, 1979.

Kansas Geological Survey, Lawrence, Kansas, "Changing concepts of Midcontinent Pennsylvanian cyclothem stratigraphy", October 26, 1979.

University of Oklahoma, School of Geology and Geophysics, Norman, Oklahoma, "A new look at Midcontinent Pennsylvanian cyclothems", October 24, 1979.

University of Missouri at Columbia, Geology Department, Columbia, Missouri, "A new look at Midcontinent Pennsylvanian cyclothems", March 16, 1979.

University of Miami, Rosenstiel School of Marine and Atmospheric Sciences, Miami, Florida, "Pennsylvanian cyclothems, Midcontinent North America" and "Paleoclimatic reconstruction of Devonian continents", January 12, 1979.

University of Arkansas, Department of Geology, Fayetteville, Arkansas, "Carbonate buildups in the geologic record", April 1976.

Iowa Archaeological Society, Charles Keyes Chapter, Iowa City, "Origin and formation of chert", March 1976.

Cedar Valley Rock & Mineral Club, Marion, Iowa, Lecture on Yucatan, April 1975.

Northern Ohio Geological Society, Kent, Ohio, "Reef-building organisms through time", November 1973.

University of Akron, Geology Department, Akron, Ohio, "Interpretation of shallow marine environments", November 1973.

Union Oil Company of Canada, geological staff, Calgary, Alberta, Canada, three lectures on "Interpretation of shallow marine environments", "Reef-building organisms through time", &"Pennsylvanian phylloid-algal buildups in Kansas", September 1973.

Kansas University, Department of Geology, Lawrence, Kansas, "Pennsylvanian algal mound complexes, associated features, and their stratigraphic implications in southeastern Kansas", December 1968.

University of Pittsburgh, Department of Earth and Planetary Sciences, Pittsburgh, Pennsylvania, "Pennsylvanian algal mound complexes in the Midcontinent", February 1968.

Kansas Geological Society, Wichita, Kansas, (with C. D. Conley, J. C. Davis and D. F. Merriam), "Pennsylvanian algal mounds as potential reservoirs", November 29, 1967.

University of Iowa, Geology Department, Iowa City, Iowa, "Pennsylvanian algal mound complexes in eastern Kansas and adjacent states", May 19, 1967.

Permian Basin Section of Society of Economic Paleontologists and Mineralogists, Midland, Texas, "Pennsylvanian algal mound complexes in eastern Kansas and adjacent states", February 16, 1967.

VOLUNTEERED PAPERS PRESENTED AT PROFESSIONAL SOCIETY MEETINGS:

Total, 1961-1999: 25 volunteered presentations. [All were presented orally, except for 1 poster in 1993]

International [5]:

XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, August 20, 1999, “Proposal toward consensus on names and rank of two basic subdivisions of Carboniferous System” (with E. Villa).

XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, August 20, 1999, “Proposal toward consensus on further subdivision of the two subsystems of the Carboniferous System” (with E. Villa).

XIV International Congress on Carboniferous and Permian Stratigraphy, Calgary, Canada, August 20, 1999, “Proposal for Desmoinesian-Missourian Stage boundary stratotype, a candidate for a GSSP” (with D.R. Boardman and J.E. Barrick).

11th International Congress of Carboniferous Stratigraphy and Geology, Beijing, China, September 4, 1987, "Middle-Upper Pennsylvanian glacial-eustatic sea-level curve for Midcontinent North America and potential for large-scale correlation"

International Symposium on the Devonian System, Calgary, Canada, September, 1967, "Reef-like carbonate complex in the Tully Limestone (Devonian) in New York"

National [20]:

Annual Meeting of Society for Sedimentary Geology (SEPM) and American Association of Petroleum Geologists, Denver, Colorado, June 13, 1994, "Eustatic and possible tectonic controls over depositional architecture of Pennsylvanian basin filling on northern Midcontinent shelf and basin margin”

Above meeting, in absence of senior co-author, June 15, 1994, "Probable high-amplitude glacial eustatic origin for Pennsylvanian cyclothems requires modification of applied sequence-stratigraphic classification and terminology"

Mid-Year Meeting of Society for Sedimentary Geology on "Stratigraphic Record of Global Change", State College, Pennsylvania, August 9, 1993, "Global implications of glacial eustasy as the main control over Pennsylvanian stratigraphy” [Poster session]

Annual Meeting of Society for Sedimentary Geology (SEPM) and American Association of Petroleum Geologists, Dallas, Texas, April 9, 1991, "Biostratigraphic correlation of eustatic cyclothems (basic Pennsylvanian sequence units) from Midcontinent to Texas and Illinois"

Annual Meeting of Geological Society of America, St. Louis, Missouri, November 6, 1989, "Evidence for glacial-eustatic control over Pennsylvanian cyclothems in Midcontinent North America"

South-Central Section Meeting of Geological Society of America, Arlington, Texas, March 13, 1989, "Implications for Texas of glacial eustatic control over Middle and Upper Pennsylvanian cyclothems in Midcontinent North America"

North-Central Section Meeting of Geological Society of America, Akron, Ohio, April 21, 1988, "Preliminary conodont biostratigraphic characterization of Middle-Upper Pennsylvanian eustatic cyclic sequence in Midcontinent North America"

North-Central Section Meeting of Geological Society of America, Akron, Ohio, April 21, 1988, "Glacial-eustatic sea-level curve for Pennsylvanian of north-central Texas and biostratigraphic correlation with curve for Midcontinent" (with D.R. Boardman, who did not attend meeting).

South-Central Section Meeting of Geological Society of America, Lawrence, Kansas, March 15, 1988, "Relations of basinward stratigraphy of Midcontinent Pennsylvanian cyclothems to amount of sea-level drop during regression"

National meeting of Society of Economic Paleontologists & Mineralogists, Denver, Colorado, June, 1982,"Diagenetic model for carbonate rocks in Mid-continent Pennsylvanian eustatic cyclothems"

North Central Section Meeting of Geological Society of America, Ames, Iowa, April 30, 1981, "Compatibility of crinoid faunas with eustatic model for deposition of Midcontinent Pennsylvanian cyclothems" (and R. K. Pabian)

Above meeting, May 1, 1981, "New data on Missourian (Upper Pennsylvanian) stratigraphy of the Forest City Basin, southwestern Iowa and adjacent Nebraska" (and J. F. Meacham).

North Central Section Meeting of Geological Society of America, Carbondale, Illinois, April, 1977, "Significance of conodont distribution in the Stanton cyclothem (Missourian, Upper Pennsylvanian) in eastern Kansas" (with R.H. Wood)

North Central Section Meeting of Geological Society of America, Carbondale, Illinois, April, 1977, "Two types of Midcontinent Pennsylvanian black shales and their respective conodont faunas" (and J.W. Swade)

Annual Meeting of Geological Society of America, Denver, Colorado, November, 1976, "Significance of vertical sequence, lateral change, and phosphatic black shale facies in Midcontinent Upper Pennsylvanian megacyclothems"

Annual meeting of Kansas Academy of Science, Wichita, Kansas, May, 1970, "Comparison of modern Bahamian carbonate sediments with Kansas Pennsylvanian limestones"

Annual Meeting of Geological Society of America, San Francisco, California, November, 1966, "Relationship of carbonate facies in an algal mound complex in Upper Pennsylvanian of Kansas"

Annual Meeting of Geological Society of America, Kansas City, Missouri, November, 1965, "Apparent structural control of Tully Limestone deposition..."
National meeting of Society of Economic Paleontologists and Mineralogists, Houston, Texas, March, 1963, "Depositional environment of the Devonian Tully
Limestone of central New York"

Cordilleran Section Meeting of Geological Society of America, San Diego, California, March, 1961, "Silurian and Lower Devonian section in...Delamar Range, Lincoln County, Nevada"

FIELD TRIPS LED OR ORGANIZED:

Total for societies, conventions, congresses, and subcommissions 1975-2001: 16

I.U.G.S. Subcommission on Carboniferous Stratigraphy, Field and General Meeting in St. Louis, USA: Organizer of field trip ‘Stratigraphy and Biostratigraphy of the Mississippian Subsystem (Carboniferous System) in Its Type Region, the Mississippi River Valley of Illinois, Missouri, and Iowa’, September 8-13, 2001

Fourteenth International Congress on Carboniferous-Permian Stratigraphy (Calgary, Canada): Leader of Pre-Meeting Field Trip # 8, Middle and Upper Pennsylvanian (Upper Carboniferous) cyclothem succession in Midcontinent Basin, U.S.A., run out of Kansas City, MO, August 12-15, 1999.

North-Central Section, Geological Society of America, 25th Annual Meeting, Iowa City, Co-Leader of field trip to research area around Winterset, Iowa, May 2, 1992.

Midcontinent Pennsylvanian Stratigraphic Working Group (MPSWG) of Midcontinent Section, SEPM: Organizer and leader of 5th Annual Field Trip, to Pennsylvanian rocks in northwestern Missouri, eastern Kansas and northeastern Oklahoma, May 24-27, 1991.

MPSWG, Midcontinent Section, SEPM: Part organizer of 4th Annual Field Trip, to Pennsylvanian rocks in eastern Oklahoma, May 18-21, 1990.

MPSWG, Midcontinent Section, SEPM: Organizer and part leader of 3rd Annual Field Trip to Pennsylvanian rocks in western Missouri and eastern Oklahoma, May 23-24, 1988.

MPSWG, Midcontinent Section, SEPM: Organizer and leader of 2nd Annual Field Trip to Pennsylvanian rocks from south-central Iowa to eastern Oklahoma, May 27-31, 1987.

MPSWG, of Midcontinent Section, SEPM; Organizer and Leader of 1st Annual Field Trip to Pennsylvanian rocks of eastern Kansas and Northern Oklahoma, May 27-30, 1986.

Midcontinent Section SEPM, Lawrence, Kansas; Leader of annual field trip to research area in eastern Kansas, October 12, 1985.

Great Lakes Section SEPM, Danville, Illinois; Guest leader of part of annual field trip, to Pennsylvanian deposits of eastern Illinois, September 27-28, 1980.

Geological Society of Iowa (Iowa Geological Survey, Iowa City), Leader of Spring Field trip to research area in Madison County Iowa, April 20, 1980.

Ninth International Carboniferous Congress, Urbana, Illinois; Leader of Field Trip to research area in eastern Kansas and southeastern Nebraska, May 27-31,
1979.

Society of Economic Paleontologists and Mineralogists (SEPM) annual meeting, Oklahoma City; Leader of Carbonate Field Trip to research area of eastern Kansas, April 7-9, 1978.

North American Paleontological Convention II, Lawrence, Kansas; Led informal field trip to research area in southeastern Kansas, August 1977.

39th Annual Tri-State Field conference hosted by Iowa University Geology Department; Leader of Field Trip to local Devonian exposures, October 11, 12, 1975.

Midcontinent Section of American Association of Petroleum Geologists (AAPG) annual meeting, Wichita, Kansas; Leader of field trip to research area in southeastern Kansas, Sept. 30 – Oct. 1, 1975.

PRINCIPAL RESEARCH ORIENTATION:
I have been carrying out (and advising projects in) detailed geographic, stratigraphic, paleontologic and petrographic investigations of sedimentary rock units in order to determine the nature and distribution of different rock types and to delineate both sedimentary features such as reefs, channels, deltas, shorelines, etc., and diagenetic features resulting from ancient soil profiles, water tables, etc., which together control the distribution of rock types, mineralization patterns, and fluid migration routes, some having economic significance.
The results of these studies have been shedding new light on basic patterns of rock distribution vertically and laterally across the Midcontinent sedimentary basin of North America. This has allowed identification of probable factors responsible for these patterns, and development of sedimentary models that integrate and summarize the patterns and factors determined to be responsible. My New York and Midcontinent projects and invited papers for various symposia have been oriented toward these ends. The paleoclimatic world reconstructions I made for the 1978 Bristol Devonian symposium, helped me ultimately to develop a sedimentary model involving changes in ancient oceanic circulation patterns for the Midcontinent Pennsylvanian sea. This ancient sea extended from Oklahoma through Kansas and Missouri to Iowa and Nebraska about 300 million years ago, and its deposits have been the major focus of my research interest since 1966.
More recently, I constructed a sea level curve for this area through a span of about 10 million years, which I presented at an invited symposium on cyclic sedimentation at Princeton University in May 1985. I also showed that the periodicity of this curve is similar to the frequency of sea-level changes of similar magnitude resulting from periodic ice cap formation and melting occurring for the last few million years of earth history. This strongly suggests linkage of the ancient Pennsylvanian sea-level changes to the continental glaciation known to have occurred then in the southern hemisphere. Since then, with the help of several paleontologists, I have begun to correlate these ancient glacial sea-level changes recognized in the Midcontinent with those now being recognized in sequences of the same age in Texas, Illinois, and the Appalachians, as the more distant extents of the ancient sea, such that we will now be able to segregate and analyze the influence of tectonic (mountain-building) forces on ancient sea-level changes separately from the glacial control already delineated. Most recently, with my 1993 selection to membership in the Project 5 working group of the Subcommission on Carboniferous Stratigraphy (SCCS) of the International Commission on Stratigraphy (ICS) of the International Union of Geological Sciences and my 1996 election to voting membership in the SCCS itself, I have become involved in evaluating the suitability of several well-studied rock successions of the same age in different parts of the world as candidates for boundary stratotypes, which will be used to define particular “instants” in geologic time on a global scale. I am now strongly involved in the leadership of the SCCS since my elevation to the position of Chair in 2000

UNSOLICITED LETTERS OF COMMENDATION and UNSOLICITED LETTERS OF INVITATION TO PARTICIPATE IN PENDING SYMPOSIA OR TO CONTRIBUTE TO VARIOUS PROJECTS (not many of which could be accommodated) – approximately 35-40, copies available on request.


TEACHING AT THE UNIVERSITY OF IOWA

1. Teaching Assignments