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  1. 1
    Analytical results, geochemical signatures, mineralogical data, and sample locality map of lode gold, placer gold, and heavy-mineral concentrates from the Tolovana mining district, Livengood quadrangle, Alaska /
    Published 1988
    Government Document Microform Book
  2. 2
    Geologic and grade-volume data on 330 gold placer deposits /
    by Orris, G. J.
    Published 1985
    Government Document Microform Book
  3. 3
    Maps and descriptions of lode and placer deposits, prospects, and occurrences in the Wiseman 1?by 3?quadrangle, Alaska /
    Published 1988
    Government Document Microform Book
  4. 4
    Radioactive black sand placer deposits of the Challis 1?x 2?quadrangle, Idaho /
    by Kiilsgaard, Thor H.
    Published 1986
    Government Document Microform Book
  5. 5
    Geochemical signatures, analytical results, mineralogical data, and sample locality map of placer and lode gold, and heavy-mineral concentrates from the Fortymile mining district, Eagle quadrangle, Alaska /
    Published 1989
    Government Document Microform Book
  6. 6
    Gold, platinum, and silver analytical results and gold signatures from the Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska /
    Published 1989
    Government Document Microform Book
  7. 7
    Fluvial gold placers and basin-margin rotation /
    by Force, Eric R.
    Published 1991
    Government Document Microform Book
  8. 8
    Titanium-zirconium-rare-earth placer resources potential of surficial sediments on the Atlantic Continental Shelf offshore of New York, Rhode Island, and southern Massachusetts /
    by Grosz, A. E. (Andrew E.)
    Published 1991
    Government Document Microform Book
  9. 9
    Source and bedrock distribution of gold and platinum-group metals in the Slate Creek area, northern Chistochina Mining District, east-central Alaska /
    by Foley, Jeffrey Y.
    Published 1990
    Government Document Microform Book
  10. 10
    Investigation of tin-rare earth element placers in the Ray River Watershed /
    by Barker, James C.
    Published 1991
    Government Document Microform Book
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