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Mineral Resources > Online Spatial Data > Geology > by state > Tennessee Geology

Geologic units in Pickett county, Tennessee

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided (Mississippian) at surface, covers 0.1 % of this area

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided

Lithology: limestone; dolostone (dolomite); shale; sandstone

Fentress Formation (Pennsylvanian) at surface, covers 5 % of this area

Fentress Formation - Mostly dark-gray to light-brown shale, with minor siltstone and sandstone. Wilder coal near middle. Laterally equivalent to entire Gizzard Group and all of Crab Orchard Mountains Group below Rockcastle Conglomerate. Thickness as much as 340 feet.

Lithology: shale; siltstone; sandstone; coal

Breathitt Formation, lower part (Pennsylvanian) at surface, covers 0.6 % of this area

Breathitt Formation, lower part; lower part which includes Livingston Conglomerate Member of Lee Formation in eastern Rockcastle County

Lithology: shale; siltstone; sandstone; coal; conglomerate

Salem, Warsaw, and Harrodsburg Limestones, undivided (Mississippian) at surface, covers < 0.1 % of this area

Salem, Warsaw, and Harrodsburg Limestones, undivided

Lithology: limestone; fine-grained mixed clastic; dolostone (dolomite)

Pennington Formation (Paragon Formation), Bangor Limestone, Hartselle Formation, and Kidder Limestone Member of Monteagle Limestone, undivided (Mississippian) at surface, covers 0.6 % of this area

Pennington Formation (Paragon Formation), Bangor Limestone, Hartselle Formation, and Kidder Limestone Member of Monteagle Limestone, undivided

Lithology: limestone; shale; sandstone

Bangor Limestone and Hartselle Formation (Mississippian) at surface, covers 4 % of this area

Bangor Limestone - Dark brownish-gray limestone, thick-bedded. Thickness 100 to 250 feet; and Hartselle Formation - Thin-bedded, fine-grained sandstone and greenish-gray shale interbedded with coarse limestone. Thickness 0 to 60 feet.

Lithology: limestone; sandstone; shale

St. Louis Limestone and Warsaw Limestone (Mississippian) at surface, covers 41 % of this area

St. Louis Limestone - Residuum of nodules and blocks of chert in sandy clay. (Originally grayish-brown, medium-bedded limestone.) Maximum preserved thickness about 50 feet. Warsaw Limestone - Residuum of porous chert blocks in sandy clay. (Originally gray, medium- to coarse-grained, thick- bedded limestone.) Thickness about 60 feet.

Lithology: clay or mud; chert

Rockcastle Sandstone Member of Lee Formation (Pennsylvanian) at surface, covers 0.1 % of this area

Rockcastle Sandstone Member of Lee Formation

Lithology: sandstone; conglomerate

Pennington Formation (Mississippian) at surface, covers 3 % of this area

Pennington Formation - Highly variegated clay shale, distinctive; contains siltstone and locally gray, fine-grained sandstone. Thickness 400 to 700 feet.

Lithology: shale; siltstone; sandstone

Rockcastle Conglomerate (Pennsylvanian) at surface, covers 12 % of this area

Rockcastle Conglomerate - Conglomeratic sandstone and sandstone, gray to brown, fine- to coarse-grained. Thin coal-bearing shale locally present near middle. Thickness 150 to 220 feet.

Lithology: conglomerate; sandstone; shale; coal

Monteagle Limestone (Mississippian) at surface, covers 9 % of this area

Monteagle Limestone - Fragmental and oolitic limestone, light-gray; and fine-grained, brownish-gray limestone. Thickness 180 to 350 feet.

Lithology: limestone

Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 0.1 % of this area

Ste. Genevieve and St. Louis Limestones, undivided; includes Salem Limestone west of Christian County

Lithology: limestone; dolostone (dolomite); chert; sandstone

Fort Payne Formation (Mississippian) at surface, covers 19 % of this area

Fort Payne Formation - Bedded chert, calcareous and dolomitic, somewhat crinoidal; and minor shale. Thin green shale (Maury) at base. Average thickness about 200 feet.

Lithology: chert; shale