Geochemical and geologic reconnaissance of a part of the Fortymile area, Alaska
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Geochemical and geologic reconnaissance of a part of the Fortymile area, Alaska by Helen Laura Foster

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Published by U.S. Govt. Print. Off. in Washington .
Written in English


  • Geology, Economic -- Alaska.,
  • Geochemical prospecting -- Alaska.,
  • Gold ores -- Alaska.,
  • River sediments -- Alaska.,
  • Mines and mineral resources -- Alaska.,
  • Rocks, Igneous -- Alaska.,
  • Rocks, Metamorphic -- Alaska.,
  • Intrusions (Geology) -- Alaska.

Book details:

Edition Notes

Includes bibliographical references (p. 29).

Statementby Helen L. Foster and Sandra H. B. Clark.
SeriesContributions to economic geology, Geological Survey bulletin -- 1312-M
ContributionsClark, Sandra H. B.
The Physical Object
Paginationiv, 29 p. :
Number of Pages29
ID Numbers
Open LibraryOL22971345M

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Geochemical and geologic reconnaissance of a part of the Fortymile area, Alaska (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: Helen Laura Foster; Sandra H B Clark; Geological Survey (U.S.). A geochemical and geological reconnaissance of part of the Seventymile River area (fig. I), Eagle quadrangle, Alaska, was conducted during the summer of as a part of the U.S. Geo- logical Survey's Heavy Metals Program. The principal investiga- tion was in the Eagle D-2 and D-3 quadrangles, but some sampling. Hoffman, J.D. and Buttleman, K., , National Geochemical Data Base—National Uranium Resource Evaluation (NURE) hydro-geochemical and stream sediment reconnaissance (HSSR) data for Alaska and the conterminous United States: U.S. Geological Survey Digital Data Series DDSB (CD ROM). State of Alaska Alaska / Natural Resources DNR / Geological & Geophysical Surveys DGGS / Publications Pubs / CH 23 CH 23 DGGS CH 23 Geochemistry and geology, boundary area, Fortymile district, Eagle A-1 Quadrangle, Alaska.

We present here the initial results of a petrographic, geochemical, and isotopic study of Mesozoic intrusive rocks and spatially associated Zn-Pb-Ag-Cu-Au prospects in the Fortymile mining district in the southern Eagle quadrangle, Alaska. Analyzed samples include mineralized and unmineralized drill core from and exploration by Full Metal Minerals, USA, Inc., at the Little Whiteman. The Fortymile River area lies within the Yukon-Tanana lithotectonic terrane of east-central Alaska. This terrane is a mosaic of several lithotectonic assemblages, each with a coherent lithologic, metamorphic, and deformational history. Previous workers have shown that the Fortymile River area is underlain by rocks of the Seventymile, Taylor Mountain, and Nisutlin by: 5. 15 / A geochemical orientation study for lead and zinc in the Fairbanks, Alaska, area, , 17 pages, $ 4 16 / Development of the Spectrographic Element Geochemical Analysis, $ 2 Alaska Professional Report, Department of Natural Resources, Division of Mines and Geology. Digital Data for the Reconnaissance Geologic Map for Prince William Sound and the Kenai Peninsula, Alaska. Geologic map compiled from existing sources without generalization, with new or revised data where available. Part of a statewide geologic map database effort in which the structure and content of the data is as consistent as is practical.

The mining history of Chicken is still alive in the Fortymile in his book “Klondike, the Last Great Gold Rush,” said Fortymile “was a community of hermits whose one common bond was their. Full text of "The cumulative impacts of placer mining: a bibliography of the EIS project" See other formats BLM-AK-PTS |co I-* =o io io |co ico The Cumulative Impacts of Placer Mining: A Bibliography of the EIS Project By Howard Levine K Department of the Interior 'eau of Land Management ska State Office (9 TAKE United States Department of the Interior AMroai' BUREAU.   The Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted ,scale geologic mapping of the Eagle A-2 Quadrangle ( square miles; equivalent to four minute quadrangles). The area is part of the year old Fortymile mining district and is located in eastern Alaska near the Alaska-Yukon h Year: Reconnaissance geologic map of the Tanana Quadrangle, Alaska: USGS Open-File Report [Robert Mills Chapman, Warren Yeend, et al.] on *FREE* shipping on qualifying offers. The United States Geological Survey (USGS) is a scientific organization created in , and is part of the U.S. government. Their scientists explore our environment and ecosystemsAuthor: Warren Yeend.