Search results for: Erickson, Ralph Leroy, 1923-

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  1. 1

    A petrographical investigation of the longitudinal deposition within the Mason esker relative to its origin

    Authors: Erickson, Ralph Leroy, 1923-
    Published: 1948
    Physical Description: 3 unnumbered pages, 39 unnumbered leaves : illustrations ; 29 cm
    Thesis Book
  2. 2

    Geochemical reconnaissance in the Pequop Mountains and Wood Hills, Elko County, Nevada

    Authors: Erickson, Ralph Leroy, 1923-
    Published: United States Department of the Interior, Geological Survey, 1966
    Physical Description: 1 online resource (iii, 20 pages, 1 page of plate) : illustrations, map, charts.
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    Government Document Electronic eBook
  3. 3

    Geochemical exploration near the Getchell mine, Humboldt County, Nevada

    Authors: Erickson, Ralph Leroy, 1923-
    Published: United States Department of the Interior, Geological Survey, 1964
    Physical Description: 1 online resource (26 pages, 2 pages of plates) : illustrations, maps, charts.
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    Government Document Electronic eBook
  4. 4

    A petrographical investigation of the longitudinal deposition within the Mason esker relative to its origin

    Authors: Erickson, Ralph Leroy, 1923-
    Published: 1948
    Physical Description: 1 online resource (3 unnumbered pages, 39 unnumbered pages) : illustrations
    Connect to online resource - All users (Digital Object Identifier Permalink)
    Thesis Electronic eBook
  5. 5

    Gold geochemical anomaly in the Cortez district, Nevada

    Authors: Erickson, Ralph Leroy, 1923-
    Published: United States Department of the Interior, Geological Survey, 1966
    Physical Description: 1 online resource (ii, 7 pages) : maps.
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    Government Document Electronic eBook
  6. 6

    Geochemistry and petrology of the alkalic igneous complex at Magnet Cove, Arkansas

    Authors: Erickson, Ralph Leroy, 1923-, Blade, Lawrence V. (Lawrence Vernon), 1917-
    Published: United States Department of the Interior, Geological Survey, 1963
    Physical Description: 1 online resource (v, 95 pages) : illustrations + 3 plates.
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    Government Document Electronic eBook
  7. 7

    Reconnaissance of uranium and copper deposits in parts of New Mexico, Colorado, Utah, Idaho, and Wyoming

    Authors: Gott, Garland B. (Garland Bayard), 1912-1996, Erickson, Ralph Leroy, 1923-
    Published: United States Department of the Interior, Geological Survey, 1952
    Physical Description: 1 online resource (16 pages) : map.
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    Government Document Electronic eBook
  8. 8

    Reconnaissance geology, geophysics, and geochemistry of the southeastern part of the Lewis and Clark Range, Montana : a study identifying a weak lead-zinc mineralized belt, 30 mile...

    Authors: Mudge, Melville R., 1921-2009, Erickson, Ralph Leroy, 1923-, Kleinkopf, M. Dean (Merlin Dean), 1926-2015, Curtin, Gary C., 1935-, Marranzino, A. P.
    Published: United States Department of the Interior, Geological Survey, 1968
    Physical Description: 1 online resource (iii, 35 pages, 4 pages of plates) : illustrations, maps (some color).
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    Government Document Electronic eBook
  9. 9

    A possible favorable belt for mineral discovery in subsurface Cambrian rocks in southern Missouri

    Published: U.S. Department of the Interior, Geological Survey, 1980
    Other Authors: “…Erickson, Ralph Leroy, 1923-…”
    Physical Description: 1 volume : illustrations, maps ; 28 cm.
    Government Document Microfilm Book
  10. 10

    Characteristics of mineral deposit occurrences

    Published: The Survey, 1982
    Other Authors: “…Erickson, Ralph Leroy, 1923-…”
    Physical Description: 1 volume : illustrations, maps ; 28 cm.
    Government Document Microfilm Book