- Usage in publication:
-
- Cockalorum Wash Formation*
- Modifications:
-
- Named
- Dominant lithology:
-
- Limestone
- Shale
- Siltstone
- AAPG geologic province:
-
- Great Basin province
Summary:
Named for Cockalorum Wash. Type area designated as exposures south of Nyeka Hill and west of Conglomerate Ridge, [T15N R52E], Fish Creek Range. Type section designated as exposures from west base of Conglomerate Ridge westward through Reef Hill in northern part of its outcrop, southern Fish Creek Range, Nye Co, NV. Composed of limestone, shale, siltstone, and sandstone. Is 366 m thick. Overlies correlative of Nevada Formation(?). Underlies Devils Gate Formation. Age is Middle Devonian based on biostratigraphic dating of corals.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
-
- Cockalorum Wash Formationâ€
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Great Basin province
Summary:
Cockalorum Wash Formation (Merriam, 1973) is abandoned; its rocks are reassigned to Devils Gate Limestone, Pilot Shale, Woodruff Formation, Antelope Range Formation, and Webb Formation.
Source: GNU records (USGS DDS-6; Menlo 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 ([ ]).