Geologic Systems

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Quaternary | Pennsylvanian | Mississippian (Middle) | Mississippian (Lower) | Devonian (Middle & Lower) | Silurian (Upper & Lower) | Ordovician (Middle & Lower)

Geologic Systems Quaternary
System Drawer # Lithic Type County County Exp. # Cat. # Heated Exposure
Quaternary 1 Sioux Quartzite Buena Vista BV-A 156    
Quaternary 1 Sioux Quartzite Buena Vista BV-A+ 156 +  
Quaternary 1 Till Cobble Buena Vista BV-B      
Quaternary 1 Till Cobble Calhoun CH-A1 466    
Quaternary 1 Till Cobble Calhoun CH-A1+ 466 + T
Quaternary 1 Till Cobble Calhoun CH-A2 467    
Quaternary 1 Till Cobble Calhoun CH-A2+ 467 + T
Quaternary 1 Till Cobble Calhoun CH-A3 468    
Quaternary 1 Till Cobble Calhoun CH-A3+ 468 + T
Quaternary 1 Till Cobble Calhoun CH-A4 469    
Quaternary 1 Till Cobble Calhoun CH-A4+ 469 + T
Quaternary 1 Till Cobble Calhoun CH-A5 470    
Quaternary 1 Till Cobble Calhoun CH-A5+ 470 + T
Quaternary 1 Till Cobble Calhoun CH-B1 471    
Quaternary 1 Till Cobble Calhoun CH-B1+ 471 +  
Quaternary 1 Till Cobble Calhoun CH-B2      
Quaternary 1 Till Cobble Calhoun CH-B2+   +  
Quaternary 1 Till Cobble Calhoun CH-B3      
Quaternary 1 Till Cobble Calhoun CH-B3+   +  
Quaternary 1 Till Cobble Calhoun CH-B4      
Quaternary 1 Till Cobble Calhoun CH-B4+   +  
Quaternary 1 Till Cobble Calhoun CH-B5      
Quaternary 1 Till Cobble Calhoun CH-B5+   +  
Quaternary 1 Till Cobble Calhoun CH-B6      
Quaternary 2 Till Cobble Calhoun CH-B66+   +  
Quaternary 2 Till Cobble Calhoun CH-C1      
Quaternary 2 Till Cobble Calhoun CH-C1+   +  
Quaternary 2 Till Cobble Calhoun CH-C2      
Quaternary 2 Till Cobble Calhoun CH-C2+   +  
Quaternary 2 Till Cobble Calhoun CH-C3      
Quaternary 2 Till Cobble Calhoun CH-C3+   +  
Quaternary 2 Till Cobble Calhoun CH-C4      
Quaternary 2 Till Cobble Calhoun CH-C4+   +  
Quaternary 2 Till Cobble Calhoun CH-C5      
Quaternary 2 Till Cobble Calhoun CH-C6 472    
Quaternary 2 Till Cobble Calhoun CH-C7 473    
Quaternary 2 Till Cobble Calhoun CH-C8 475    
Quaternary 2 Taconite Jasper Cerro Gordo CE-A 174   T
Quaternary 2 Taconite Jasper Cerro Gordo CE-A+ 174 + T
Quaternary 2 Tongue River Silica Cherokee CK-A 58   S
Quaternary 2 Tongue River Silica Cherokee CK-A1 58 + S
Quaternary 2 Tongue River Silica Cherokee CK-A1+ 59 + S
Quaternary 2 Tongue River Silica Cherokee CK-A3 60   S
Quaternary 2 Tongue River Silica Cherokee CK-A3+ 60 + S
Quaternary 2 Tongue River Silica Cherokee CK-A4 61   S
Quaternary 2 Tongue River Silica Cherokee CK-A4+ 61 + S
Quaternary 2 Tongue River Silica Cherokee CK-A5 62   S
Quaternary 2 Tongue River Silica Cherokee CK-A5+ 62 + S
Quaternary 3 Knife River Flint Crawford CF-A 143   T
Quaternary 3 Till Cobble Henry HN-I1 312   T
Quaternary 3 Till Cobble Henry HN-I1+ 312 + T
Quaternary 3 Till Cobble Humboldt HB-A      
Quaternary 3 Till Cobble Humboldt HB-A+   +  
Quaternary 3 Tongue River Silica Jackson JK-A 180   T
Quaternary 3 Tongue River Silica Jackson JK-A+ 180 +  
Quaternary 3 Knife River Flint Kossuth KH-A 251   T
Quaternary 3 Till Cobble Marion MA-A1+ 233 + S
Quaternary 3 Till Cobble Marion MA-A2      
Quaternary 3 Till Cobble Marion MA-A2+   +  
Quaternary 3 Till Cobble Marion MA-A3      
Quaternary 3 Till Cobble Marion MA-A3+   +  
Quaternary 3 Till Cobble Marion MA-B1      
Quaternary 3 Till Cobble Marion MA-B1+ 261 + S
Quaternary 3 Till Cobble Marion MA-B2 426   S
Quaternary 3 Till Cobble Marion MA-B2+ 426 + S
Quaternary 3 Till Cobble Marion MA-B3 427   S
Quaternary 3 Till Cobble Marion MA-B3+ 427 + S
Quaternary 3 Till Cobble Marion MA-B4 428   S
Quaternary 3 Till Cobble Marion MA-B4+ 428 + S
Quaternary 3 Till Cobble Chalcedony Marion MA-B5 429   S
Quaternary 3 Till Cobble Chalcedony Marion MA-B5+ 429 + S
Quaternary 3 Till Cobble Chert Marion MA-B6 430   S
Quaternary 4 Till Cobble Chert Marion MA-B6+ 430 +  
Quaternary 4 Till Cobble Chalcedony Marion MA-B7 431   S
Quaternary 4 Till Cobble Chalcedony Marion MA-B7+ 431 + S
Quaternary 4 Tongue River Silica Ringgold RN-A 254   T
Quaternary 4 Tongue River Silica Ringgold RN-A+ 254 + T
Quaternary 4 Till Cobble Sac SA-A1 505    
Quaternary 4 Till Cobble Sac SA-A1+ 505 +  
Quaternary 4 Till Cobble Sac SA-A2 525    
Quaternary 4 Till Cobble Sac SA-A2+ 525 +  
Quaternary 4 Till Cobble Sac SA-A3 532    
Quaternary 4 Till Cobble Sac SA-A3+ 532 +  
Quaternary 4 Till Cobble Sac SA-B1 506    
Quaternary 4 Till Cobble Sac SA-B1+ 506 +  
Quaternary 4 Till Cobble Sac SA-B2 525    
Quaternary 4 Till Cobble Sac SA-B2+ 525 +  
Quaternary 4 Till Cobble Sac SA-B3 526    
Quaternary 4 Till Cobble Sac SA-B3+ 526 +  
Quaternary 4 Till Cobble Sac SA-C 527    
Quaternary 4 Till Cobble Sac SA-C+ 527 +  
Quaternary 4 Till Cobble Sac SA-D1 528    
Quaternary 4 Till Cobble Sac SA-D1+ 528 +  
Quaternary 4 Till Cobble Sac SA-D2 529    
Quaternary 4 Till Cobble Sac SA-D2+ 529 +  
Quaternary 4 Till Cobble Sac SA-D3 530    
Quaternary 4 Till Cobble Sac SA-D3+ 530 +  
Quaternary 4 Till Cobble Sac SA-D4      
Quaternary 5 Till Cobble Sac SA-D5      
Quaternary 5 Till Cobble Sac SA-E 531    
Quaternary 5 Till Cobble Sac SA-E+ 531 +  
Quaternary 5 Till Cobble Sac SA-F1 532    
Quaternary 5 Till Cobble Sac SA-F1+ 532 +  
Quaternary 5 Till Cobble Sac SA-F2      
Quaternary 5 Till Cobble Sac SA-F2+   +  
Quaternary 5 Till Cobble Sac SA-F3      
Quaternary 5 Till Cobble Sac SA-F3+   +  
Quaternary 5 Till Cobble Sac SA-F4      
Quaternary 5 Till Cobble Sac SA-F4+   +  
Quaternary 5 Till Cobble Story SR-C1 216   T
Quaternary 5 Till Cobble Story SR-C1+ 216 + T
Quaternary 5 Till Cobble Story SR-C2 218   T
Quaternary 5 Till Cobble Story SR-C3+ 219 + T
Quaternary 5 Till Cobble Story SR-C4 220   T
Quaternary 5 Till Cobble Story SR-C5+ 221 + T
Quaternary 5 Till Cobble Story SR-C6 222   T
Quaternary 5 Tabular Till Cobble Story SR-C7+ 223 + T
Quaternary 5 Till Cobble Story SR-C8+ 224 + T
Quaternary 5 Tabular Till Cobble Story SR-C9 225   T
Quaternary 5 Till Cobble Story SR-C10 226   T
Quaternary 5 Till Cobble Story SR-C10+ 226 +  
Quaternary 5 OoliticTill Cobble Story SR-C11 227   T
Quaternary 6 OoliticTill Cobble Story SR-C11+ 227 +  
Quaternary 6 Till Cobble Story SR-C12 228    
Quaternary 6 Till Cobble Story SR-C13+ 229 +  
Quaternary 6 Till Cobble Story SR-C14+ 230 +  
Quaternary 6 Oolitic Till Cobble Story SR-D 232   S
Quaternary 6 Oolitic Till Cobble Story SR-D+ 232 + S
Quaternary 6 Till Cobble Story SR-F 235   T
Quaternary 6 Till Cobble Story SR-F+ 235 + T
Quaternary 6 Till Cobble Story SR-J 239   S
Quaternary 6 Tongue River Silica Story SR-K1 240   T
Quaternary 6 Tongue River Silica Story SR-K1+ 240 + T
Quaternary 6 Till Cobble Dolomitic Story SR-K2+ 241 + T
Quaternary 6 Argillaceous Mudstone Webster WB-A 157   O
Quaternary 6 Argillaceous Mudstone Webster WB-A+ 157 + O
Quaternary 6 Kakabeca Webster WB-B 477    
Quaternary 6 Kakabeca Webster WB-B+ 477 +  
Quaternary 6 Argillaceous Mudstone Webster WB-C      
Quaternary 6 Argillaceous Mudstone Webster WB-C+   +  
Quaternary 6 Tongue River Silica Woodbury WD-A 72   S
Quaternary 6 Tongue River Silica Woodbury WD-A+ 72 +  
Quaternary 6 Bijou Hills Orthoquartzite Woodbury WD-B1 366   M
Quaternary 6 Tongue River Silica Woodbury WD-B2 367   M
Quaternary 6 Tongue River Silica Woodbury WD-B2+ 367 + M
Pennsylvanian 6 Argentine Madison MD-A1 163   Q