Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 210.00 ft
Unit: Pleistocene Series
System
Quaternary
Series
Pleistocene Series
Group
Formation
Member
Submember
Start Depth
0.00 ft
End Depth
210.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Indistinct Lithologic Break)
Penetration
Complete Penetration, No Gaps
Primary Lithology
Till
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 210.00 ft
End Depth: 350.00 ft
Unit: Cretaceous
System
Cretaceous
Series
Group
Formation
Member
Submember
Start Depth
210.00 ft
End Depth
350.00 ft
Contact Accuracy
Top And Base Inaccurate - (Poor Samples, Contact Gap, Indistinct Lithologic Break)
Penetration
Bedrock Surface - Complete Penetration, No Gaps
Primary Lithology
Shale
Percent
0
Secondary Lithology
Siltstone
Percent
0
Tertiary Lithology
Sandstone
Percent
0
Comments
Start Depth: 350.00 ft
End Depth: 695.00 ft
Unit: Dakota
System
Cretaceous
Series
Group
Fort Benton ("Lower Colorado ")
Formation
Dakota
Member
Submember
Start Depth
350.00 ft
End Depth
695.00 ft
Contact Accuracy
Top And Base Inaccurate - (Poor Samples, Contact Gap, Indistinct Lithologic Break)
Penetration
Complete Penetration, Gaps, Top & Base Defined
Primary Lithology
Sandstone
Percent
0
Secondary Lithology
Shale
Percent
0
Tertiary Lithology
Coal
Percent
0
Comments
Start Depth: 695.00 ft
End Depth: 753.00 ft
Unit: Decorah
System
Ordovician
Series
Group
Galena
Formation
Decorah
Member
Submember
Start Depth
695.00 ft
End Depth
753.00 ft
Contact Accuracy
Top And Base Inaccurate - (Poor Samples, Contact Gap, Indistinct Lithologic Break)
Penetration
Complete Penetration, No Gaps
Primary Lithology
Sandstone
Percent
0
Secondary Lithology
Dolomite
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 753.00 ft
End Depth: 802.00 ft
Unit: Platteville
System
Ordovician
Series
Group
Galena
Formation
Platteville
Member
Submember
Start Depth
753.00 ft
End Depth
802.00 ft
Contact Accuracy
Top And Base Inaccurate - (Poor Samples, Contact Gap, Indistinct Lithologic Break)
Penetration
Complete Penetration, No Gaps
Primary Lithology
Shale
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 802.00 ft
End Depth: 825.00 ft
Unit: St. Peter Sandstone
System
Ordovician
Series
Group
Ancell
Formation
St. Peter Sandstone
Member
Submember
Start Depth
802.00 ft
End Depth
825.00 ft
Contact Accuracy
Base Accurate, Top Less Accurate - (Indistinct Lithologic Contact)
Penetration
Partial Penetration (Base Not Met), No Gap At Top
Primary Lithology
Sandstone
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments