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Geologic Unit: Sands
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Map showing publication footprint
  • Usage in publication:
    • Sands granite*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Granite
  • AAPG geologic province:
    • Great Basin province
Publication:

Hewett, D.F., 1956, Geology and mineral resources of the Ivanpah Quadrangle, California and Nevada: U.S. Geological Survey Professional Paper, 275, 172 p., (incl. geologic map, scale 1:125,000)


Summary:

Pg. 49-50, pl. 1. Sands granite. On fresh fracture is a light-gray holocrystalline rock made up of feldspar, quartz, and minor biotite. Weathered surface is distinctly brownish, owing to thin coating of desert varnish. "Pink granite" intrusive rock in northern Bristol Mountains (Gardner, 1940) of assumed Jurassic age closely resembles Sands Granite. Age is Jurassic(?).
Type locality not stated by author. Confined to several townships in southwest corner of Ivanpah quadrangle, south, north, and east of Sands on Union Pacific RR, and to belt about 5 mi long near Mountain Pass on Highway 91, San Bernardino Co., southern CA. Named from town of Sands.

Source: US geologic names lexicon (USGS Bull. 1200, p. 663); supplemental information from GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Sands Granite*
  • Modifications:
    • Mapped
  • Dominant lithology:
    • Quartz monzonite
  • AAPG geologic province:
    • Great Basin province
Publication:

Barca, R.A., 1966, Geology of the northern portion of Old Dad Mountain quadrangle, San Bernardino County, California: California Division of Mines and Geology Map Sheet, 7, 1 sheet, 9 p., scale 1:62,500


Summary:

Sands Granite. Mapped in northern part of Old Dad Mountain quadrangle, San Bernardino County, California. About 1 sq mi of unit forms the low hills along western side of Cowhole Mountain where it intrudes Goodsprings Dolomite and Sultan Limestone and is cut by numerous northwest-trending andesite dikes. Mineralogically a quartz monzonite but name Sands Granite retained. Age is Jurassic(?).

Source: US geologic names lexicon (USGS Bull. 1200, p. 663).


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 ([ ]).

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