Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 137.00 ft
Unit: Quaternary 
System
Quaternary 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
137.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Till 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 137.00 ft
End Depth: 322.00 ft
Unit: Galena 
System
Ordovician 
Series
 
Group
Galena 
Formation
 
Member
 
Submember
 
Start Depth
137.00 ft
End Depth
322.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Bedrock Surface - Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
60 
Secondary Lithology
Shale 
Percent
30 
Tertiary Lithology
Dolomite 
Percent
10 
Comments
Start Depth: 322.00 ft
End Depth: 432.00 ft
Unit: Decorah/Platteville/Glenwood Undiff. 
System
Ordovician 
Series
 
Group
Galena 
Formation
Decorah/Platteville/Glenwood Undiff. 
Member
 
Submember
 
Start Depth
322.00 ft
End Depth
432.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Shale 
Percent
65 
Secondary Lithology
Limestone 
Percent
35 
Tertiary Lithology
 
Percent
Comments
Start Depth: 432.00 ft
End Depth: 516.00 ft
Unit: St. Peter Sandstone 
System
Ordovician 
Series
 
Group
Ancell 
Formation
St. Peter Sandstone 
Member
 
Submember
 
Start Depth
432.00 ft
End Depth
516.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Sandstone 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 516.00 ft
End Depth: 700.00 ft
Unit: Shakopee 
System
Ordovician 
Series
 
Group
Prairie Du Chien 
Formation
Shakopee 
Member
 
Submember
 
Start Depth
516.00 ft
End Depth
700.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
90 
Secondary Lithology
Sandstone 
Percent
Tertiary Lithology
Shale 
Percent
Comments
Start Depth: 700.00 ft
End Depth: 802.00 ft
Unit: Oneota 
System
Ordovician 
Series
 
Group
Prairie Du Chien 
Formation
Oneota 
Member
 
Submember
 
Start Depth
700.00 ft
End Depth
802.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Dolomite 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 802.00 ft
End Depth: 860.00 ft
Unit: Jordan 
System
Cambrian 
Series
 
Group
 
Formation
Jordan 
Member
 
Submember
 
Start Depth
802.00 ft
End Depth
860.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Sandstone 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 860.00 ft
End Depth: 900.00 ft
Unit: St. Lawrence 
System
Cambrian 
Series
 
Group
 
Formation
St. Lawrence 
Member
 
Submember
 
Start Depth
860.00 ft
End Depth
900.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Dolomite 
Percent
90 
Secondary Lithology
Shale 
Percent
10 
Tertiary Lithology
 
Percent
Comments