Search results for: Barker, Fred, 1928-

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  1. 1

    Gold investigations in Precambrian clastic and pelitic rocks, southwestern Colorado and northern New Mexico

    Authors: Barker, Fred, 1928-
    Published: United States Department of the Interior, Geological Survey, 1969
    Physical Description: 1 online resource (iii, 22 pages) : illustrations.
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    Government Document Electronic eBook
  2. 2

    Precambrian geology of the Needle Mountains, southwestern Colorado

    Authors: Barker, Fred, 1928-
    Published: United States Department of the Interior, Geological Survey, 1969
    Physical Description: 1 online resource (iii, A35 pages) : illustrations, maps.
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    Government Document Electronic eBook
  3. 3

    Precambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes : hornblende-biotite melasyenite, exposed in an erosional window...

    Authors: Barker, Fred, 1928-, Marvin, Richard F., Peterman, Zell E.
    Published: United States Department of the Interior, Geological Survey, 1970
    Physical Description: 1 online resource (iii, 15 pages) : illustrations.
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    Government Document Electronic eBook
  4. 4

    Trondhjemites, dacites, and related rocks

    Published: Elsevier Scientific Pub. Co. ; Distributors for the U.S.A. and Canada, Elsevier/North-Holland, 1979
    Other Authors: “…Barker, Fred, 1928-…”
    Physical Description: xv, 659 pages : illustrations ; 25 cm.
    Book