Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 17.30 ft
Unit: Gilmore City 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
Sub-Augusta 
Formation
Gilmore City 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
17.30 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
core drilled into Gilmore City level of underground Ames Mine, contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 17.30 ft
End Depth: 46.00 ft
Unit: Eagle City 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
Sub-Augusta 
Formation
Maynes Creek 
Member
Eagle City 
Submember
 
Start Depth
17.30 ft
End Depth
46.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 46.00 ft
End Depth: 72.80 ft
Unit: Wassonville 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
Sub-Augusta 
Formation
Maynes Creek 
Member
Wassonville 
Submember
 
Start Depth
46.00 ft
End Depth
72.80 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
80 
Secondary Lithology
Chert/Chalcedony 
Percent
20 
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 72.80 ft
End Depth: 80.80 ft
Unit: Starrs Cave 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
North Hill 
Formation
Starrs Cave 
Member
 
Submember
 
Start Depth
72.80 ft
End Depth
80.80 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 80.80 ft
End Depth: 114.00 ft
Unit: English River 
System
Devonian 
Series
 
Group
Yellow Spring (New Albany) 
Formation
Maple Mill 
Member
English River 
Submember
 
Start Depth
80.80 ft
End Depth
114.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
60 
Secondary Lithology
Siltstone 
Percent
40 
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 114.00 ft
End Depth: 118.60 ft
Unit: Aplington 
System
Devonian 
Series
 
Group
Yellow Spring (New Albany) 
Formation
Aplington 
Member
 
Submember
 
Start Depth
114.00 ft
End Depth
118.60 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Dolomite 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 118.60 ft
End Depth: 124.80 ft
Unit: Maple Mill 
System
Devonian 
Series
 
Group
Yellow Spring (New Albany) 
Formation
Maple Mill 
Member
 
Submember
 
Start Depth
118.60 ft
End Depth
124.80 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, lithology assumed from core photos
Start Depth: 124.80 ft
End Depth: 135.00 ft
Unit: Yellow Spring (New Albany) 
System
Devonian 
Series
 
Group
Yellow Spring (New Albany) 
Formation
 
Member
 
Submember
 
Start Depth
124.80 ft
End Depth
135.00 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Ls/Dol Mixed 
Percent
90 
Secondary Lithology
Chert/Chalcedony 
Percent
10 
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist (interval termed "Unnamed Wackestone Unit"), lithology assumed from core photos
Start Depth: 135.00 ft
End Depth: 204.80 ft
Unit: Owen 
System
Devonian 
Series
 
Group
Yellow Spring (New Albany) 
Formation
Lime Creek 
Member
Owen 
Submember
 
Start Depth
135.00 ft
End Depth
204.80 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Ls/Dol Mixed 
Percent
100 
Secondary Lithology
 
Percent
Tertiary Lithology
 
Percent
Comments
contacts picked by Martin-Marietta geologist, description continued to 241.2', lithology assumed from core photos