U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Dos Palmas rhyolite
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Rhyolite
  • AAPG geologic province:
    • Salton basin
Publication:

Dibblee, T.W., Jr., 1954, Geology of the Imperial Valley region, California, IN Jahns, R.H., ed., Geology of southern California; Chapter II, Geology of the natural provinces: California Division of Mines Bulletin, no. 170, [art. 2], p. 21-28.


Summary:

Pg. 24, 25 (fig. 3), pl. 2 (geol. map). Dos Palmas rhyolite. Thickness as much as 400 feet. Rests directly on older crystalline rocks. Southeast of Box Canyon, underlies Canebrake conglomerate (new). Age is Miocene(?).
Crops out in Mecca Hills, 8 mi S. 30 deg. E. of Mecca, [Cottonwood Spring 15-min quadrangle], Imperial Co., southern CA.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1143).


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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 04:21:41 PM MDT