- Usage in publication:
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- Medley Formation
- Modifications:
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- Areal extent
- AAPG geologic province:
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- Permian basin
Summary:
Medley Formation mapped in the southern part of the Davis Mountains, Jeff Davis Co, west TX in Permian basin. Consists of latite porphyry, vesicular, gray; weathers brownish gray to reddish gray. Thickness is uncertain, as upper portion is covered by talus from Goat Canyon Formation. Maximum measurable section 22 ft. [Unclear on Correlation of Map Units if Medley is part of Vieja Group.] Shown as below Goat Canyon Formation. [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.] Of Oligocene age. 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.
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