- Usage in publication:
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- Garren Group
- Modifications:
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- Areal extent
- AAPG geologic province:
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- Permian basin
Summary:
Garren Group mapped in report area, west TX in Permian basin. Mapped undivided south of Wylie Mountains (Chispa Mountain area), in the Van Horn Mountains, and in the southern part of the Eagle Mountains, Culberson and Jeff Davis Cos. Where divided in the above areas, shown on the Correlation of Map Units as consisting of (ascending): Hogeye Tuff, Pantera Trachyte, and Petan Basalt. [Author states that correlation of volcanic rocks from area to area on Marfa sheet is uncertain--little attempt is made to correlate between areas. The rocks are described by area.] Age of group ranges from Eocene to Oligocene. Geologic map.
Source: GNU records (USGS DDS-6; Denver 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 ([ ]).