- Usage in publication:
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- Martin Creek limestone*
- Modifications:
-
- Named
- Dominant lithology:
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- Limestone
- AAPG geologic province:
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- Appalachian basin
Summary:
Named the Martin Creek limestone for Martin Creek, Hancock Co., TN. Consists of dark gray and brown limestone with abundant chert nodules in lower part, tan cryptocrystalline limestone with chert nodules in upper part, and locally contains zone of coarsely crystalline fragmental limestone near base. Thickness is 40 to 182 feet. Unit overlies the Rob Camp limestone and underlies the Hurricane Bridge limestone. The Martin Creek is of Middle Ordovician age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Martin Creek limestone*
- Modifications:
-
- Principal reference
- AAPG geologic province:
-
- Appalachian basin
Summary:
The type section for the Martin Creek limestone is designated as along county road that climbs bluff west of bridge across Martin Creek at its junction with Powell River, northwestern corner of Hancock Co., TN. Unit unconformably overlies the Rob Camp limestone or, where absent, the Poteet limestone; conformably underlies the Hurricane Bridge limestone. The Martin Creek is equivalent to the Lenoir limestone of Butts (1940).
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Martin Creek Limestone*
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Appalachian basin
Summary:
The Martin Creek Limestone is considered a formation within the Chickamauga Group in eastern TN. Consists of olive gray calcarenite interbedded with light olive gray calcarenite. Locally at base is as much as 35 feet of fine- to coarse-calcarenite derived from erosion of underlying Rob Camp Limestone. Unit contains olive-black chert nodules throughout, but are more abundant in the upper part. Thickness is 80 to 140 feet. The Martin Creek is of Middle Ordovician age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).