Stratigraphy

Start Depth
End Depth
Stratigraphic Unit
Start Depth: 0.00 ft
End Depth: 80.80 ft
Unit: Quaternary 
System
Quaternary 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
0.00 ft
End Depth
80.80 ft
Contact Accuracy
Contacts Poorly Defined Or Complete Gap 
Penetration
Complete Penetration, Gap At Base 
Primary Lithology
Unknown 
Percent
0 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
no record
Start Depth: 80.80 ft
End Depth: 97.40 ft
Unit: Swede Hollow 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Swede Hollow 
Member
 
Submember
 
Start Depth
80.80 ft
End Depth
97.40 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, Gaps, Top & Base Defined 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
calcareous, fossiliferous
Start Depth: 97.40 ft
End Depth: 98.10 ft
Unit: Ardmore Limestone 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Swede Hollow 
Member
Ardmore Limestone 
Submember
 
Start Depth
97.40 ft
End Depth
98.10 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
Verdigris Formation: Ardmore Limestone, slightly calcareous to calcareous, micAceoius, pyritic, with ironstones.
Start Depth: 98.10 ft
End Depth: 109.10 ft
Unit: Oakley Shale 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Swede Hollow 
Member
Oakley Shale 
Submember
 
Start Depth
98.10 ft
End Depth
109.10 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
0 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Verdigris Formation
Start Depth: 109.10 ft
End Depth: 110.20 ft
Unit: Whitebreast Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Swede Hollow 
Member
Whitebreast Coal 
Submember
 
Start Depth
109.10 ft
End Depth
110.20 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 110.20 ft
End Depth: 149.40 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
110.20 ft
End Depth
149.40 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
52 
Secondary Lithology
Siltstone 
Percent
27 
Tertiary Lithology
Sandstone 
Percent
21 
Comments
Start Depth: 110.20 ft
End Depth: 149.50 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
110.20 ft
End Depth
149.50 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
52 
Secondary Lithology
Siltstone 
Percent
27 
Tertiary Lithology
Sandstone 
Percent
21 
Comments
with 1.1' argillaceous limestone
Start Depth: 149.50 ft
End Depth: 150.10 ft
Unit: Carruthers Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
Carruthers Coal 
Submember
 
Start Depth
149.50 ft
End Depth
150.10 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 150.10 ft
End Depth: 151.30 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
150.10 ft
End Depth
151.30 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
Start Depth: 151.30 ft
End Depth: 153.60 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
151.30 ft
End Depth
153.60 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Olmitz Limestone
Start Depth: 153.60 ft
End Depth: 165.25 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
153.60 ft
End Depth
165.25 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
95 
Secondary Lithology
Limestone 
Percent
5 
Tertiary Lithology
 
Percent
0 
Comments
6'2" shale; 7" ironstone/limestone; 3'7" mudstone, burrows; 1'4" shale, black, pyritic, slickensided.
Start Depth: 165.00 ft
End Depth: 166.00 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
165.00 ft
End Depth
166.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
unnamed coal in Floris Formation frolm 165.25' to 165.9'
Start Depth: 165.90 ft
End Depth: 193.20 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
165.90 ft
End Depth
193.20 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
73 
Secondary Lithology
Sandstone 
Percent
27 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 193.20 ft
End Depth: 194.50 ft
Unit: Laddsdale Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
Laddsdale Coal 
Submember
 
Start Depth
193.20 ft
End Depth
194.50 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 194.50 ft
End Depth: 206.20 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
194.50 ft
End Depth
206.20 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
68 
Secondary Lithology
Sandstone 
Percent
23 
Tertiary Lithology
Siltstone 
Percent
9 
Comments
Start Depth: 206.20 ft
End Depth: 207.80 ft
Unit: Laddsdale Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
Laddsdale Coal 
Submember
 
Start Depth
206.20 ft
End Depth
207.80 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 207.80 ft
End Depth: 217.90 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
207.80 ft
End Depth
217.90 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
ironstones, fosssiliferous, sepstarian
Start Depth: 217.90 ft
End Depth: 218.25 ft
Unit: Laddsdale Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
Laddsdale Coal 
Submember
 
Start Depth
217.90 ft
End Depth
218.25 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
boney coal
Start Depth: 218.25 ft
End Depth: 229.10 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
218.25 ft
End Depth
229.10 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
61 
Secondary Lithology
Shale 
Percent
39 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 229.10 ft
End Depth: 234.30 ft
Unit: Laddsdale Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
Laddsdale Coal 
Submember
 
Start Depth
229.10 ft
End Depth
234.30 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
Start Depth: 234.25 ft
End Depth: 252.20 ft
Unit: Floris 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
 
Submember
 
Start Depth
234.25 ft
End Depth
252.20 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
masrine
Start Depth: 252.20 ft
End Depth: 253.80 ft
Unit: Laddsdale Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Floris 
Member
Laddsdale Coal 
Submember
 
Start Depth
252.20 ft
End Depth
253.80 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
Start Depth: 253.80 ft
End Depth: 282.00 ft
Unit: Kalo 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Kalo 
Member
 
Submember
 
Start Depth
253.80 ft
End Depth
282.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Siltstone 
Percent
51 
Secondary Lithology
Shale 
Percent
49 
Tertiary Lithology
Unknown 
Percent
0 
Comments
Start Depth: 282.00 ft
End Depth: 283.00 ft
Unit: Cliffland Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Kalo 
Member
Cliffland Coal 
Submember
 
Start Depth
282.00 ft
End Depth
283.00 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
282' - 282.4'
Start Depth: 282.40 ft
End Depth: 288.10 ft
Unit: Kalo 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Kalo 
Member
 
Submember
 
Start Depth
282.40 ft
End Depth
288.10 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Siltstone 
Percent
74 
Secondary Lithology
Shale 
Percent
26 
Tertiary Lithology
Unknown 
Percent
0 
Comments
Start Depth: 288.10 ft
End Depth: 289.50 ft
Unit: Blackoak Coal 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Kalo 
Member
Blackoak Coal 
Submember
 
Start Depth
288.10 ft
End Depth
289.50 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
Start Depth: 323.70 ft
End Depth: 324.70 ft
Unit: Kilbourn 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Kilbourn 
Member
 
Submember
 
Start Depth
323.70 ft
End Depth
324.70 ft
Contact Accuracy
Top & Base Accurate For Sample 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Coal 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
unnamed coal in Kilbourn Formation
Start Depth: 324.70 ft
End Depth: 328.90 ft
Unit: Kilbourn 
System
Pennsylvanian (Subsystem Of Carboniferous System) 
Series
 
Group
Cherokee 
Formation
Kilbourn 
Member
 
Submember
 
Start Depth
324.70 ft
End Depth
328.90 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
 
Percent
0 
Tertiary Lithology
 
Percent
0 
Comments
brecciated, pyritic, plant debris
Start Depth: 328.90 ft
End Depth: 343.25 ft
Unit: Mississippian (Subsystem Of Carboniferous System) 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
 
Formation
 
Member
 
Submember
 
Start Depth
328.90 ft
End Depth
343.25 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Shale 
Percent
100 
Secondary Lithology
Unknown 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
pyritic with limestone lenses throughout
Start Depth: 343.25 ft
End Depth: 390.40 ft
Unit: St. Louis 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
 
Formation
St. Louis 
Member
 
Submember
 
Start Depth
343.25 ft
End Depth
390.40 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Partial Penetration (Base Not Met), No Gap At Top 
Primary Lithology
Limestone 
Percent
49 
Secondary Lithology
Sandstone 
Percent
49 
Tertiary Lithology
Shale 
Percent
2 
Comments
Start Depth: 390.40 ft
End Depth: 412.30 ft
Unit: St. Louis 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
 
Formation
St. Louis 
Member
 
Submember
 
Start Depth
390.40 ft
End Depth
412.30 ft
Contact Accuracy
Contacts From Driller's Log - Accurate 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Limestone 
Percent
50 
Secondary Lithology
Siltstone 
Percent
50 
Tertiary Lithology
Unknown 
Percent
0 
Comments
interbedded limestone and siltstone
Start Depth: 412.30 ft
End Depth: 439.00 ft
Unit: St. Louis 
System
Mississippian (Subsystem Of Carboniferous System) 
Series
 
Group
 
Formation
St. Louis 
Member
 
Submember
 
Start Depth
412.30 ft
End Depth
439.00 ft
Contact Accuracy
Top And Base Inaccurate - (Poor Samples, Contact Gap, Indistinct Lithologic Break) 
Penetration
Complete Penetration, No Gaps 
Primary Lithology
Siltstone 
Percent
0 
Secondary Lithology
Limestone 
Percent
0 
Tertiary Lithology
Unknown 
Percent
0 
Comments
about 24.2' core loss; probably siltstone, limonite stsined TD = 439'