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  • Usage in publication:
    • Pinehurst Shale*
  • Modifications:
    • Named
    • Biostratigraphic dating
  • Dominant lithology:
    • Shale
    • Sandstone
  • AAPG geologic province:
    • California Coast Ranges province
Publication:

Case, J.E., 1968, Upper Cretaceous and lower Tertiary rocks, Berkeley and San Leandro Hills, California, IN Contributions to general geology, 1967: U.S. Geological Survey Bulletin, 1251-J, 29 p., (incl. geologic map, scale 1:24,000)


Summary:

Unit is named the Pinehurst Shale. Consists of white to tan siliceous shale and interbedded sandstone. Thickness is 150 m at type. Conformably overlies unnamed Upper Cretaceous shale. Age is Paleocene (Ynezian Stage) based on fossils [foraminifers].

Source: US geologic names lexicon (USGS Bull. 1520, p. 239); 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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