| Leipers Limestone | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Underlies | Chattanooga Shale and Cumberland Formation |
| Overlies | Catheys Formation |
| Thickness | 35-55 m [1] |
| Lithology | |
| Primary | Limestone |
| Other | dolomite, shale [1] |
| Location | |
| Region | Kentucky, Tennessee, Alabama, Georgia [2] |
| Country | United States |
The Leipers Limestone is a geologic formation in Kentucky, Tennessee, Alabama and Georgia. [2] It preserves fossils dating back to the Ordovician Period. [1]
The Fort Payne Formation, or Fort Payne Chert, is a geologic formation found in the southeastern region of the United States. It is a Mississippian Period cherty limestone, that overlies the Chattanooga Shale, and underlies the St. Louis Limestone. To the north, it grades into the siltstone Borden Formation. It preserves fossils dating back to the Carboniferous period.
The Saginaw Group is a geologic group in Michigan composed of sedimentary rock deposited during the Pennsylvanian Period (circa 323.2 million years ago to 298.9 million years ago. Saginaw group rocks include sandstone, shale, coal, and limestone of fresh water, brackish, and marine origin. Fossils dating back to the Penssylvanian Period can be found in Saginaw Group formations.
The Trenton Formation is a geologic formation in Canada and Michigan, Ohio, and Indiana in the United States. It preserves fossils dating back to the Ordovician period.
The Oriskany Sandstone is a Middle Devonian age unit of sedimentary rock found in eastern North America. The type locality of the unit is located at Oriskany Falls in New York. The Oriskany Sandstone extends throughout much of the Appalachian Basin.
The Williamsport Sandstone is a sandstone geologic formation in West Virginia, Virginia, Pennsylvania, and Maryland. the formation includes the Cedar Creek Limestone member. Near Cumberland, Maryland it includes the Cedar Creek Limestone member. It preserves fossils dating back to the Silurian period.
The Louisville Limestone is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Glen Dean Limestone is a geologic formation in Kentucky. It preserves fossils dating back to the Carboniferous period.
The Golconda Formation is a geologic formation in Kentucky. It preserves fossils dating back to the Carboniferous period. In Indiana, the Golconda, it is called the Golconda Limestone and is part of the Stephensport Group.
The Harrodsburg Limestone is a geologic formation, a member of the Sanders Group of Indiana Limestone, of Mississippian age. It was named for Harrodsburg in southern Monroe County, Indiana by T. C. Hopkins and C. E. Siebenthal. It is made up primarily of calcarenite and calcirudite. It also may include some beds of dolomite and shale.
The Calloway Creek Formation is a geologic formation in Kentucky. It preserves fossils dating back to the Ordovician period.
The Tyrone Limestone is a geologic formation in Kentucky. It preserves fossils dating back to the Ordovician period.
The Big Clifty Formation is a geologic formation in Indiana. It preserves fossils dating back to the Carboniferous period.
The Laurel Formation, also known as the Laurel Limestone or the Laurel Dolomite, is a geologic formation in Indiana and Kentucky. It preserves fossils dating back to the Silurian period.
The Tallahatta Formation is a geologic formation found on the surface in Alabama, Florida, Georgia, and Mississippi. It is also located in the subsurface of Kentucky. The Tallahatta formation is part of the Claiborne Group and contains four members: the Basic City Shale in Mississippi, the Holy Springs Sand Member in Mississippi, the Meridian Sand Member in Alabama and Mississippi, and the Neshoba Sand Member in Mississippi. It preserves fossils dating back to the Paleogene period, specifically the Eocene.
The Key Largo Limestone is a geologic formation in Florida. It is a fossilized coral reef. The formation is exposed along the upper and middle Florida Keys from Soldier Key to the Bahia Honda Channel. The islands form a long narrow arc concentric with the inner edge of the Florida Straits and with the Florida Reef. The limestone includes fossils of corals, mollusks and bryozoans. Fossilized coral head formations are visible in some exposures. The Key Largo Limestone continues in a narrow band underwater just offshore of the coast of Florida north of Soldier Key to the middle of the Palm Beach County coast, and southward just offshore of the lower Florida Keys to the Dry Tortugas.
The Miami Limestone, originally called Miami Oolite, is a geologic formation of limestone in southeastern Florida.
The Salt Mountain Limestone is a geologic formation in southern Alabama and Mississippi.
The Compton Limestone is a geologic formation in southwest Missouri. It preserves brachiopod and echinoderm fossils of the Mississippian subperiod. The Compton rests unconformably on the Cotter Dolomite of Ordovician age. The Compton was named for the community of Compton, Missouri as the type sections were described for outcrops along the James River and its tributary the Compton Branch.
The Huntersville Chert or Huntersville Formation is a Devonian geologic formation in the Appalachian region of the United States. It is primarily composed of mottled white, yellow, and dark grey chert, and is separated from the underlying Oriskany Sandstone by an unconformity. The Huntersville Chert is laterally equivalent to the Needmore Shale, which lies north of the New River. It is also laterally equivalent to a sandy limestone unit which is often equated with the Onondaga Limestone. These formations are placed in the Onesquethaw Stage of Appalachian chronostratigraphy, roughly equivalent to the Emsian and Eifelian stages of the broader Devonian system.
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