Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 170.00 ft
Unit: St. Lawrence 
System
Cambrian 
Series
 
Group
 
Formation
St. Lawrence 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
170.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Bedrock Surface - Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
Secondary Lithology
Sandstone 
Percent
Tertiary Lithology
Chert/Chalcedony 
Percent
Comments
Start Depth: 170.00 ft
End Depth: 280.00 ft
Unit: Lone Rock 
System
Cambrian 
Series
 
Group
Tunnel City 
Formation
Lone Rock 
Member
 
Submember
 
Start Depth
170.00 ft
End Depth
280.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Indistinct Lithologic Break) 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Siltstone 
Percent
Secondary Lithology
Sandstone 
Percent
Tertiary Lithology
Dolomite 
Percent
Comments
Start Depth: 280.00 ft
End Depth: 325.00 ft
Unit: Ironton 
System
Cambrian 
Series
 
Group
Tunnel City 
Formation
Wonewoc 
Member
Ironton 
Submember
 
Start Depth
280.00 ft
End Depth
325.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Indistinct Lithologic Break) 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Sandstone 
Percent
Secondary Lithology
Dolomite 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 325.00 ft
End Depth: 410.00 ft
Unit: Galesville 
System
Cambrian 
Series
 
Group
Tunnel City 
Formation
Wonewoc 
Member
Galesville 
Submember
 
Start Depth
325.00 ft
End Depth
410.00 ft
Contact Accuracy
Base Accurate, Top Less Accurate - (Indistinct Lithologic Contact) 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Sandstone 
Percent
Secondary Lithology
Dolomite 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 410.00 ft
End Depth: 442.00 ft
Unit: Eau Claire 
System
Cambrian 
Series
 
Group
Tunnel City 
Formation
Eau Claire 
Member
 
Submember
 
Start Depth
410.00 ft
End Depth
442.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Siltstone 
Percent
Secondary Lithology
Sandstone 
Percent
Tertiary Lithology
Shale 
Percent
Comments