Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Fortymile Placer District Resource Inventory, Alaska.

Authors
Colp-DB
Source
For Reference Only At Bureau Libraries :16 pages
Link
NIOSHTIC No.
10007109
Abstract
The Fortymile Placer District comprises the Alaska part of the Fortymile River Drainage Basin, the Eagle District, and the Seventymile River Drainage Basin. Most of the district is underlain by preCambrian and Paleozoic gneiss and schist, of both sedimentary and igneous origin and minor crystalline limestone, and by Paleozoic, Mesozoic, and Tertiary Felsic, Mafic, and Ultramafic igneous rocks. Gold in the placers is the result of weathering away of many mineralized quartz veins in metamorphic rocks near contact with Felsic intrusive bodies. This report presents a resource inventory based on records research, visits to various parts of the Fortymile area, information accumulated by miners, personal interviews, and other publications.
Publication Date
19800101
Document Type
CP;
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
OFR 43-80
NIOSH Division
AFOC;
Source Name
For Reference Only At Bureau Libraries
State
AK;
TOP