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Rotary Drilling Exploration of the Ryan Lode Properties, Fairbanks Mining District, Alaska.

Authors
Warfield-RS; Thomas-BI
Source
NTIS: PB 211 433 Available for Reference At Bureau Libraries :21 pages
Link
NIOSHTIC No.
10010079
Abstract
A rotary-drilling exploration system was tested at the Ryan Lode, Fairbanks Mining District, Alaska, to determine its application for surface trenching and to evaluate the open-pit mining potential of a wide shear zone that contains gold-bearing gold-quartz veins. The drilling sampling system was verified as a practical substitute for surface trenching that minimized environmental damage; but where tested, the shear zone material does not contain sufficient values, together with individual vein values, for open-pit mining.
Publication Date
19720101
Document Type
CP;
Fiscal Year
1972
NTIS Accession No.
PB-211433
NTIS Price
A03
Identifying No.
OFR 23-72
NIOSH Division
AFOC;
Source Name
NTIS: PB 211 433; Available for Reference At Bureau Libraries
State
AK;
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