Stratigraphy

 

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 15.00 ft
Unit: Dows 
System
Quaternary 
Series
Pleistocene Series 
Group
Wisconsinan Episode 
Formation
Dows 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
15.00 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Penetration, Gap At Top 
Primary Lithology
Till 
Percent
100 
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 15.00 ft
End Depth: 60.00 ft
Unit: Dows 
System
Quaternary 
Series
Pleistocene Series 
Group
Wisconsinan Episode 
Formation
Dows 
Member
 
Submember
 
Start Depth
15.00 ft
End Depth
60.00 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Till - Unoxidized And Unleached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 60.00 ft
End Depth: 100.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
60.00 ft
End Depth
100.00 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Sand And Gravel 
Percent
100 
Secondary Lithology
Unknown 
Percent
Tertiary Lithology
Unknown 
Percent
Comments
Start Depth: 100.00 ft
End Depth: 163.00 ft
Unit: Dakota 
System
Cretaceous 
Series
 
Group
Fort Benton ("Lower Colorado ") 
Formation
Dakota 
Member
 
Submember
 
Start Depth
100.00 ft
End Depth
163.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Bedrock Surface - Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Sandstone 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments