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Lithics Home | Counties A-Z | Geologic Systems | Lithic Types | Chert Drawers | Lithics Program A - C | D - M | O - S | T - W Lithic Type Drawer # System County County Exp. # Cat. # Heated Exposure Argentine 5 Pennsylvanian Madison MD-A 163 Q Argentine 5 Pennsylvanian Madison MD-A 163 + Q Argentine 5 Pennsylvanian Madison MD-A 164 Q Argentine 5 Pennsylvanian Madison MD-A 164 + Q Argentine 5 Pennsylvanian Pottawattamie PW-B 146 Q Argentine 5 Pennsylvanian Pottawattamie PW-B 146 + Q Bethany Falls A 5 Pennsylvanian Madison MD-D 321 O Bethany Falls A 5 Pennsylvanian Madison MD-D 321 + O Bethany Falls A 5 Pennsylvanian Madison MD-E 322 S Bethany Falls A 5 Pennsylvanian Madison MD-E 322 + S Bethany Falls B 5 Pennsylvanian Adair AD-A 323 Q Bethany Falls B 5 Pennsylvanian Adair AD-A 323 + Q Bethany Falls B 5 Pennsylvanian Pottawattamie PW-A 145 Q Bethany Falls B 5 Pennsylvanian Pottawattamie PW-A 145 + Q Bijou Hills Orthoquartzite 4 Quaternary Woodbury WD-B 366 S Blanding 18 Silurian (Lower) Clayton CT-D 64 + Q Blanding 18 Silurian (Lower) Delaware DW-B 206 C Blanding 18 Silurian (Lower) Delaware DW-C 194 Q Blanding 18 Silurian (Lower) Delaware DW-C 194 + Q Blanding Delaware DW-F 508 Blanding 18 Silurian (Lower) Dubuque DB-A 11 C Blanding 18 Silurian (Lower) Dubuque DB-A 11 + C Blanding 18 Silurian (Lower) Dubuque DB-F 119 C Blanding 18 Silurian (Lower) Dubuque DB-F 119 + C Blanding 18 Silurian (Lower) Fayette FT-A 249 C Blanding 18 Silurian (Lower) Fayette FT-A 249 + C Blanding Jackson JK-C 484 Blanding Jackson JK-D 485 Blanding Jackson JK-F 487 Blanding Jackson JK-G 488 Blanding Jackson JK-H 489 Blanding Jackson JK-I 490 Bog Iron Wapello WP-A 523 Buck Creek Quarry 17 Silurian (Lower) Winneshiek WD-H 451 Q Buck Creek Quarry 17 Silurian (Lower) Winneshiek WD-H 451 + Q Burlington 10 Mississippian (Middle) Des Moines DM-B 74 O Burlington 10 Mississippian (Middle) Des Moines DM-B 74 + O Burlington 10 Mississippian (Middle) Des Moines DM-C 75 S Burlington 10 Mississippian (Middle) Des Moines DM-C 75 + S Burlington 10 Mississippian (Middle) Des Moines DM-D 87 Q Burlington 11 Mississippian (Middle) Des Moines DM-E 256 C Burlington 11 Mississippian (Middle) Des Moines DM-E 256 + C Burlington 10 Mississippian (Middle) Des Moines DM-F 151 + O Burlington 11 Mississippian (Middle) Des Moines DM-F 208 O Burlington 11 Mississippian (Middle) Des Moines DM-F 208 + O Burlington 11 Mississippian (Middle) Des Moines DM-G 209 O Burlington 11 Mississippian (Middle) Des Moines DM-G 209 + O Burlington 11 Mississippian (Middle) Des Moines DM-H 287 O Burlington 11 Mississippian (Middle) Des Moines DM-H 287 + O Burlington Des Moines DM-I 483 Burlington 11 Mississippian (Middle) Henry HN-G 307 T Burlington 11 Mississippian (Middle) Henry HN-G 307 + T Burlington 11 Mississippian (Middle) Lee LE-B 77 Q Burlington 11 Mississippian (Middle) Lee LE-B 77 + Q Burlington 11 Mississippian (Middle) Lee LE-D 115 + O Burlington 11 Mississippian (Middle) Louisa LA-B 76 S Burlington 11 Mississippian (Middle) Louisa LA-B 76 + S Burlington 11 Mississippian (Middle) Louisa LA-D 197 Q Burlington 11 Mississippian (Middle) Louisa LA-D 197 + Q Burlington 11 Mississippian (Middle) Louisa LA-E 150 + Q Burlington 11 Mississippian (Middle) Story SR-N 246 Q Burlington 11 Mississippian (Middle) Story SR-N 246 + Q Burlington 12 Mississippian (Middle) Washington WS-C 188 O Burlington (Keokuk?) 11 Mississippian (Middle) Henry HN-I 310 T Carbonate Shale 4 Pennsylvanian Webster WB-A 157 O Carbonate Shale 4 Pennsylvanian Webster WB-A 157 + O Cement City 5 Pennsylvanian Union UN-A 315 Q Cement City 5 Pennsylvanian Union UN-A 315 + Q Chalcedony Till Cobble 2 Quaternary Marion MA-B 431 S Chalcedony Till Cobble 2 Quaternary Marion MA-B 431 + S Chalcedonic Till Cobble 2 Quaternary Marion MA-B 429 S Chalcedonic Till Cobble 2 Quaternary Marion MA-B 429 + S Chert Till Cobble 1 Quaternary Calhoun CH-E 470 + T Chert Till Cobble 2 Quaternary Marion MA-A 233 + S Chert Till Cobble 2 Quaternary Marion MA-B 261 + S Chert Till Cobble 2 Quaternary Marion MA-B 430 S Croton Banded 9 Mississippian (Middle) Henry HN-L 462 + C Croton Banded 9 Mississippian (Middle) Jefferson JF-C 172 R Croton Banded 9 Mississippian (Middle) Jefferson JF-C 172 + R Croton Banded 9 Mississippian (Middle) Van Buren VB-G 103 S Croton Banded 9 Mississippian (Middle) Van Buren VB-G 103 + S Croton Banded 9 Mississippian (Middle) Washington WS-B 189 S Croton Banded 9 Mississippian (Middle) Washington WS-B 189 + S Croton Chalcedonic 8 Mississippian (Middle) Henry HN 6 U Croton Chalcedonic 8 Mississippian (Middle) Henry HN 6 + U Croton Chalcedonic 8 Mississippian (Middle) Henry HN-D 175 O Croton Chalcedonic 8 Mississippian (Middle) Henry HN-D 175 + O Croton Chalcedonic 8 Mississippian (Middle) Henry HN-H 308 T Croton Chalcedonic 8 Mississippian (Middle) Henry HN-H 308 + T Croton Chalcedonic 8 Mississippian (Middle) Jefferson JF-D 199 Q Croton Chalcedonic 8 Mississippian (Middle) Jefferson JF-D 199 + Q Croton Chalcedonic 8 Mississippian (Middle) Jefferson JF-D 211 Q Croton Chalcedonic 8 Mississippian (Middle) Jefferson JF-D 211 + Q Croton Chalcedonic 8 Mississippian (Middle) Jefferson JF-F 204 C Croton Chalcedonic Lee LE-E 511 Croton Chalcedonic Lee LE-F 512 Croton Chalcedonic 9 Mississippian (Middle) Louisa LA-B 80 S Croton Chalcedonic 9 Mississippian (Middle) Louisa LA-B 80 + S Croton Chalcedonic 9 Mississippian (Middle) Louisa LA-C 81 S Croton Chalcedonic 9 Mississippian (Middle) Mahaska MK-A 178 S Croton Chalcedonic 9 Mississippian (Middle) Mahaska MK-A 178 + S Croton Chalcedonic 9 Mississippian (Middle) Van Buren VB-C 210 U Croton Chalcedonic 9 Mississippian (Middle) Van Buren VB-C 210 + U Croton Chalcedonic 9 Mississippian (Middle) Van Buren VB-F 102 S Croton Chalcedonic 9 Mississippian (Middle) Van Buren VB-F 102 + S Croton Chalcedonic 9 Mississippian (Middle) Washington WS-A 166 S Croton Chalcedonic 9 Mississippian (Middle) Washington WS-A 166 + S Croton Formation 8 Mississippian (Middle) Story SR-A 176 O Croton Formation 8 Mississippian (Middle) Story SR-A 176 + O Croton Formation 8 Mississippian (Middle) Story SR-A 177 O Croton Formation 8 Mississippian (Middle) Story SR-A 177 + O Curzon 5 Pennsylvanian Fremont FM-A 326 Q Curzon 5 Pennsylvanian Fremont FM-A 326 + Q Curzon 5 Pennsylvanian Mills ML-E 324 Q Curzon 5 Pennsylvanian Mills ML-E 324 + Q Curzon A 5 Pennsylvanian Fremont FM-B 325 C Curzon A 5 Pennsylvanian Fremont FM-B 325 + C Curzon B 5 Pennsylvanian Pottawattamie PW-C 327 Q Curzon B 5 Pennsylvanian Pottawattamie PW-C 327 + Q A - C | D - M | O - S | T - W Click here to view or download the entire table in Excel. Updated by Tricia R. Bender, Web Designer Mary De La Garza, Web Master July 2009 Click here to go back to the OSA homepage. Click here to go to The University of Iowa website.