Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 440.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
440.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till 
Percent
Secondary Lithology
Sand 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 440.00 ft
End Depth: 740.00 ft
Unit: Cretaceous 
System
Cretaceous 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
440.00 ft
End Depth
740.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Bedrock Surface - Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 700.00 ft
End Depth: 750.00 ft
Unit: Mississippian (Subsystem Of Carboniferous System) 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
700.00 ft
End Depth
750.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Limestone 
Percent
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 750.00 ft
End Depth: 900.00 ft
Unit: Devonian 
System
Devonian 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
750.00 ft
End Depth
900.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, Gap At Base 
Primary Lithology
Limestone 
Percent
Secondary Lithology
Shale 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 900.00 ft
End Depth: 1400.00 ft
Unit: Galena 
System
Ordovician 
Series
 
Group
Galena 
Formation
 
Member
 
Submember
 
Start Depth
900.00 ft
End Depth
1400.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
Secondary Lithology
Limestone 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 1400.00 ft
End Depth: 1437.00 ft
Unit: Decorah/Platteville Undiff. 
System
Ordovician 
Series
 
Group
Galena 
Formation
Decorah/Platteville Undiff. 
Member
 
Submember
 
Start Depth
1400.00 ft
End Depth
1437.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, Gap At Top 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 1437.00 ft
End Depth: 1445.00 ft
Unit: Glenwood 
System
Ordovician 
Series
 
Group
Ancell 
Formation
Glenwood 
Member
 
Submember
 
Start Depth
1437.00 ft
End Depth
1445.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 1445.00 ft
End Depth: 1485.00 ft
Unit: St. Peter Sandstone 
System
Ordovician 
Series
 
Group
Ancell 
Formation
St. Peter Sandstone 
Member
 
Submember
 
Start Depth
1445.00 ft
End Depth
1485.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Sandstone 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 1485.00 ft
End Depth: 1930.00 ft
Unit: Prairie Du Chien 
System
Ordovician 
Series
 
Group
Prairie Du Chien 
Formation
 
Member
 
Submember
 
Start Depth
1485.00 ft
End Depth
1930.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
Secondary Lithology
Sandstone 
Percent
Tertiary Lithology
Dolomite 
Percent
Comments
Start Depth: 1930.00 ft
End Depth: 1970.00 ft
Unit: Jordan 
System
Cambrian 
Series
 
Group
 
Formation
Jordan 
Member
 
Submember
 
Start Depth
1930.00 ft
End Depth
1970.00 ft
Contact Accuracy
Contacts From Driller's Log - Generalized 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Sandstone 
Percent
100 
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 1970.00 ft
End Depth: 2004.00 ft
Unit: Cambrian 
System
Cambrian 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
1970.00 ft
End Depth
2004.00 ft
Contact Accuracy
Unknown 
Penetration
Complete Gap 
Primary Lithology
Unknown 
Percent
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments