Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 295.00 ft
Unit: Pleistocene Series
System
Quaternary
Series
Pleistocene Series
Group
Formation
Member
Submember
Start Depth
0.00 ft
End Depth
295.00 ft
Contact Accuracy
Top & Base Accurate For Sample
Penetration
Complete Penetration, Gaps, Top & Base Defined
Primary Lithology
Till
Percent
94
Secondary Lithology
Clay
Percent
4
Tertiary Lithology
Silt
Percent
2
Comments
Start Depth: 295.00 ft
End Depth: 505.00 ft
Unit: Dakota
System
Cretaceous
Series
Group
Fort Benton ("Lower Colorado ")
Formation
Dakota
Member
Submember
Start Depth
295.00 ft
End Depth
505.00 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
Sandstone
Percent
97
Secondary Lithology
Chert/Chalcedony
Percent
2
Tertiary Lithology
Clay
Percent
1
Comments