Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 60.00 ft
Unit: Pleistocene Series 
System
Quaternary 
Series
Pleistocene Series 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
60.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Till - Oxidized And Leached 
Percent
55 
Secondary Lithology
Till - Oxidized And Unleached 
Percent
25 
Tertiary Lithology
Silt 
Percent
20 
Comments
Start Depth: 60.00 ft
End Depth: 150.00 ft
Unit: Pennsylvanian (Subsystem Of Carboniferous System) 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
60.00 ft
End Depth
150.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
95 
Secondary Lithology
Siltstone 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 150.00 ft
End Depth: 233.00 ft
Unit: Cedar Valley 
System
Devonian 
Series
 
Group
Cedar Valley 
Formation
 
Member
 
Submember
 
Start Depth
150.00 ft
End Depth
233.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
50 
Secondary Lithology
Dolomite 
Percent
35 
Tertiary Lithology
Shale 
Percent
15 
Comments
Sh Caving
Start Depth: 233.00 ft
End Depth: 277.00 ft
Unit: Pinicon Ridge 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Pinicon Ridge 
Member
 
Submember
 
Start Depth
233.00 ft
End Depth
277.00 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
70 
Secondary Lithology
Dolomite 
Percent
28 
Tertiary Lithology
Shale 
Percent
Comments
Start Depth: 277.00 ft
End Depth: 310.00 ft
Unit: Otis 
System
Devonian 
Series
 
Group
Wapsipinicon 
Formation
Otis 
Member
 
Submember
 
Start Depth
277.00 ft
End Depth
310.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
80 
Secondary Lithology
Dolomite 
Percent
19 
Tertiary Lithology
Chert/Chalcedony 
Percent
Comments
Start Depth: 310.00 ft
End Depth: 550.00 ft
Unit: Silurian 
System
Silurian 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
310.00 ft
End Depth
550.00 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
Dolomite 
Percent
99 
Secondary Lithology
Shale 
Percent
Tertiary Lithology
 
Percent
Comments