Stratigraphy

 

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 40.00 ft
Unit: Quaternary 
System
Quaternary 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
40.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till 
Percent
75 
Secondary Lithology
Silt 
Percent
25 
Tertiary Lithology
 
Percent
Comments
Start Depth: 40.00 ft
End Depth: 50.00 ft
Unit: Solon 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
Little Cedar 
Member
Solon 
Submember
 
Start Depth
40.00 ft
End Depth
50.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Bedrock Surface - Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 50.00 ft
End Depth: 150.00 ft
Unit: Wapsipinicon 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
 
Member
 
Submember
 
Start Depth
50.00 ft
End Depth
150.00 ft
Contact Accuracy
Top Accurate, Base Less Accurate - (Poor Samples, Gap At Contact) 
Penetration
Complete Penetration, Gap At Base 
Primary Lithology
Limestone 
Percent
60 
Secondary Lithology
Shale 
Percent
40 
Tertiary Lithology
 
Percent
Comments
Start Depth: 150.00 ft
End Depth: 415.00 ft
Unit: Silurian 
System
Silurian 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
150.00 ft
End Depth
415.00 ft
Contact Accuracy
Base Accurate, Top Less Accurate - (Poor Samples, Gap At Contact) 
Penetration
Complete Penetration, Gap At Top 
Primary Lithology
Dolomite 
Percent
90 
Secondary Lithology
Chert/Chalcedony 
Percent
10 
Tertiary Lithology
 
Percent
Comments
Start Depth: 415.00 ft
End Depth: 425.00 ft
Unit: Maquoketa 
System
Ordovician 
Series
 
Group
 
Formation
Maquoketa 
Member
 
Submember
 
Start Depth
415.00 ft
End Depth
425.00 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
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments