- Usage in publication:
-
- Madden Gravel*
- Modifications:
-
- Named
- Dominant lithology:
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- Gravel
- AAPG geologic province:
-
- Permian basin
Summary:
Named as a formation (1 of 5) of gravel of Quaternary age on surfaces of erosion in Hudspeth Co, TX in the Permian basin. Type locality designated on south side of Madden Arroyo in northwest corner Fort Quitman quad. Consists of a gravel of limestone, sandstone, quartzite, conglomerate, and extrusive and intrusive igneous rock fragments, all from local sources; some claystone in layers and angular fragments, probably derived from older basin deposits. Size and shape of fragments are sand to boulders, angular to subangular with some clay. Thickness ranges from 1 to almost 30 ft. Lies 10 to 110 ft above arroyos. Overlies Miser Gravel (new); underlies Gills Gravel (new). Stratigraphic table. Geologic maps.
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 ([ ]).