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Map showing publication footprint
  • Usage in publication:
    • /Brushy Canyon Formation, Member
  • Modifications:
    • Named
  • Dominant lithology:
    • Sandstone
    • Conglomerate
  • AAPG geologic province:
    • Sierra Nevada province
Publication:

Bowen, O.E., 1963, Generalized geologic map to accompany road log from LeGrand to El Portal; Map 4: Geological Society of Sacramento Annual Field Trip Guidebook, p. 20-33.


Summary:

On road log map named as formation of Mariposa Group [of Taliaferro (1933)], Mariposa Co, CA. Consists chiefly of light-green, light-brown, and pinkish tuffaceous sandstone and conglomerate with some muscovite schist derived from rhyolite tuff. Is in contact with metavolcanic rocks of Agua Fria Formation [of underlying Amador Group]. Also is in contact with overlying Mariposa Slate (Mariposa Group). In text referred to as Brushy Canyon Member of Mariposa 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 ([ ]).

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