Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 88.00 ft
Unit: Pleistocene Series
System
Quaternary
Series
Pleistocene Series
Group
Formation
Member
Submember
Start Depth
0.00 ft
End Depth
88.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Silt
Percent
75
Secondary Lithology
Till
Percent
25
Tertiary Lithology
Percent
0
Comments
Start Depth: 88.00 ft
End Depth: 130.00 ft
Unit: Graneros Shale
System
Cretaceous
Series
Group
Fort Benton ("Lower Colorado ")
Formation
Graneros Shale
Member
Submember
Start Depth
88.00 ft
End Depth
130.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, No Gaps
Primary Lithology
Shale
Percent
100
Secondary Lithology
Percent
0
Tertiary Lithology
Percent
0
Comments
Start Depth: 130.00 ft
End Depth: 380.00 ft
Unit: Dakota
System
Cretaceous
Series
Group
Fort Benton ("Lower Colorado ")
Formation
Dakota
Member
Submember
Start Depth
130.00 ft
End Depth
380.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Poor Samples, Gap At Contact)
Penetration
Partial Penetration (Base Not Met), No Gap At Top
Primary Lithology
Shale
Percent
70
Secondary Lithology
Sandstone
Percent
28
Tertiary Lithology
Limestone
Percent
2
Comments