Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 22.00 ft
Unit: Peoria 
System
Quaternary 
Series
Pleistocene Series 
Group
Wisconsinan Episode 
Formation
Peoria 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
22.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Loess 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 22.00 ft
End Depth: 24.00 ft
Unit: Roxana/Pisgah 
System
Quaternary 
Series
Pleistocene Series 
Group
Wisconsinan Episode 
Formation
Roxana/Pisgah 
Member
 
Submember
 
Start Depth
22.00 ft
End Depth
24.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Loess 
Percent
Secondary Lithology
Paleosol 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 24.00 ft
End Depth: 28.00 ft
Unit: Illinoian Episode 
System
Quaternary 
Series
Pleistocene Series 
Group
Illinoian Episode 
Formation
 
Member
 
Submember
 
Start Depth
24.00 ft
End Depth
28.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Paleosol 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 28.00 ft
End Depth: 33.00 ft
Unit: Alburnett 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Alburnett 
Member
 
Submember
 
Start Depth
28.00 ft
End Depth
33.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Till - Oxidized And Leached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
Start Depth: 33.00 ft
End Depth: 34.00 ft
Unit: Alburnett 
System
Quaternary 
Series
Pleistocene Series 
Group
Pre-Illinoian 
Formation
Alburnett 
Member
 
Submember
 
Start Depth
33.00 ft
End Depth
34.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Till - Oxidized And Unleached 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments