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

A Copper-cobalt Occurrence in the Cape Krusenstern Area, Northwestern Alaska.

Authors
Barker-JC; Roberts-WS
Source
For Reference Only At Bureau Libraries :22 pages
Link
NIOSHTIC No.
10004397
Abstract
An occurrence of copper mineralization with minor cobalt and traces of gold and silver was found in the Cape Krusenstern National Monument, Alaska, during critical and strategic mineral investigations by the Bureau of Mines. The occurrence consists of subangular sulfide-quartz boulders found in the drainage of Rabbit Creek and one similarly mineralized, poorly exposed vein outcropping. The mineralized boulders are up to at least 3 ft wide. Chip and grab samples generally contained 0.5 to 6.7 pct copper with associated cobalt ranging from trace to 0.153 pct. The mineralization is suggestive of silicified shear zones in green to gray phyllites believed to be part of the late Devonian to early Mississippian endicott groups. Further trenching and soil sampling necessary to assess this occurrence are not possible within the monument. This occurrence and reports of other mineralization in the area suggest a general favorability for mineralization in the Cape Krusenstern area.
Publication Date
19840101
Document Type
CP;
Fiscal Year
1984
NTIS Accession No.
NTIS Price
Identifying No.
OFR 33-85
NIOSH Division
AFOC;
Source Name
For Reference Only At Bureau Libraries
State
AK; MS;
TOP