Breathitt Formation, middle part

Breathitt Formation, middle part
State Kentucky
Name Breathitt Formation, middle part
Geologic age Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Sandstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 40% sandstone, 35% shale, 15% siltstone, 10 % coal, and <5% limestone
Sedimentary > Clastic > Mudstone > Shalelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 40% sandstone, 35% shale, 15% siltstone, 10 % coal, and <5% limestone
Minor
Sedimentary > Clastic > Siltstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 40% sandstone, 35% shale, 15% siltstone, 10 % coal, and <5% limestone
Sedimentary > Coallithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 40% sandstone, 35% shale, 15% siltstone, 10 % coal, and <5% limestone
Incidental
Sedimentary > Carbonate > Limestonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 40% sandstone, 35% shale, 15% siltstone, 10 % coal, and <5% limestone
Comments along and south of Pine Mountain; thickness is at least 350+ m; in east-central Kentucky, thickness is 0-195 m; in northeastern Kentucky, thickness is 35-135 m; in south-central Kentucky, thickness ranges from at least 80-85+ m
References

Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000.

NGMDB product
Counties Bell - Boyd - Breathitt - Carter - Clay - Elliott - Floyd - Garrard - Greenup - Harlan - Johnson - Knott - Knox - Lawrence - Leslie - Letcher - Lincoln - McCreary - Magoffin - Martin - Morgan - Owsley - Perry - Pike - Rockcastle - Whitley - Wolfe