Investigation of a Copper Occurrence in the Rampart Diorites

Details

• Personal Author:
  Foley, Jeffrey Y. ; McDermott, Mark M. ; Southworth DD
• Description:
  During the 1976-79 field seasons, the Bureau of Mines made mineral evaluation studies of the trans-Alaska pipeline corridor for the Bureau of Land Management. Part of the work was done by the University of Alaska, who in 1977 reported a body of hornblende diorite in the Rampart Group south of Hess Creek in the Livengood quadrangle that locally contained as much as 10 pct sulfide. In 1979 the Bureau of Mines used a combination of geological, geophysical, and geochemical methods to evaluate the potential of this area for porphyry-type copper deposits. Low concentrations of copper were found as minor occurrences in small diorite dikes and sills. The low concentrations found and the low tonnages implied by this mode of occurrence suggest that the rampart group assemblage has little potential for porphyry-copper-type deposits. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Genre:
  Conference Publications
• Place as Subject:
  Alaska ; OSHA Region 10
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  AFOC - Alaska Field Operations Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-26
• NIOSHTIC Number:
  nn:10006720
• Citation:
  For Reference Only At Bureau Libraries :26 pages
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8dab12cd801538dd46749beab340031d4da6851f7496f9a20a0a81884a3eb1aafc80022abaf99ef39421d910c41fb791fc55fc607de48ec544c96a68f1dd020b
• Download URL:
  https://stacks.cdc.gov/view/cdc/206879/cdc_206879_DS1.pdf
• File Type:
  [PDF - 802.22 KB ]