- Usage in publication:
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- Five Oaks limestone member
- Modifications:
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- Named
- Dominant lithology:
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- Limestone
- AAPG geologic province:
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- Appalachian basin
Summary:
Named the Five Oaks limestone member of the Cliffield formation for village of Five Oaks, Tazewell Co., VA. Name is applied to zone 4, described as the first calcilutite, the lowest of four zones of fine-grained high-calcium limestone. Thickness at type locality is 50 feet and averages 25 feet. Unit overlies the Blackford member of the Cliffield formation, underlies the Ward Cove member of the Cliffield formation, and correlates with the Mosheim limestone. The Five Oaks is of Middle Ordovician age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
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- Five Oaks limestone
- Modifications:
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- Revised
- AAPG geologic province:
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- Appalachian basin
Summary:
Revised the Five Oaks to the Five Oaks limestone of the Cliffield group in area between Brushy and Walker Mountains in VA.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
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- Five Oaks limestone
- Modifications:
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- Areal extent
- AAPG geologic province:
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- Appalachian basin
Summary:
Pg. 1148-1150. Five Oaks limestone of Cliffield group. Widely distributed and represented in all belts in southwestern Virginia and northeastern Tennessee. In local absence of the Blackford, the Five Oaks rests directly on Beekmantown dolomites. Thickness at Rye Cove, Virginia, 90 feet. Age is Middle Ordovician.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1359-1360).
- Usage in publication:
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- Five Oaks limestone member
- Modifications:
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- Revised
- AAPG geologic province:
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- Appalachian basin
Summary:
Revised the Five Oaks to the Five Oaks member of the Lurich formation in VA. Consists of light gray, white weathering calcilutite with some stylolitic laminae and worm borings. Unit overlies the Elway member of the Lurich formation and underlies the Lincolnshire formation.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
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- Five Oaks Formation
- Modifications:
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- Revised
- AAPG geologic province:
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- Appalachian basin
Summary:
Revised the Five Oaks to the Five Oaks Formation of the Chickamauga Group in TN. It is the second of nine formations in the Chickamauga Group; unit overlies the Blackford Formation, underlies the Lincolnshire Formation, correlates with the Holston Formation to the southeast. The Five Oaks is of Middle Ordovician age being of mostly Chazyan (Llandeilian) age, but the uppermost beds are of earliest Blackriverian (Caradocian) age as the conodont PYGODUS ANSERINUS-P. VARIABILIS zonal boundary occurs near the top of the formation.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
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- Five Oaks Limestone*
- Modifications:
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- Areal extent
- AAPG geologic province:
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- Appalachian basin
Summary:
Geographically extended the Five Oaks Limestone to the subsurface of WV in section F-F'. Also occurs in the subsurface of western VA. Overlies the Elway Limestone and underlies the Peery Limestone. The Five Oaks 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 ([ ]).