Tungsten Investigations Near VABM Bend, Eastern Alaska

Details

• Personal Author:
  Barker, James C. ; Foley, Jeffrey Y.
• Description:
  Numerous scheelite occurrences in the Charley River area of east- central Alaska suggest the existence of a broad geographic zone with a potential for economic deposits of tungsten. The trend strikes northwesterly across a region of diverse geology from the Seventymile District to Pinnell Mountain. Tungsten mineralization occurs on a tributary of Crescent Creek in the Charley River drainage as disseminated grains and aggregates up to 2 cm across in banded, hornfelsic calc-silicates; disseminated grains in biotite- quartz monzonite; and concentrations in siliceous veins less than 1 cm across in leucocratic, igneous rocks. Weathering of these rocks has led to concentration of scheelite in placer 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:
  1-24
• NIOSHTIC Number:
  nn:10006666
• Citation:
  For Reference Only At Bureau Libraries :24 pages
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:36bb0d9aa020f5ead63a6019eb5f587a439d162976fb4b5dc60581c551866bffaf7b833c6546d36af8a38a88b98315381fdab0603797c5c331f3095542231ac0
• Download URL:
  https://stacks.cdc.gov/view/cdc/206873/cdc_206873_DS1.pdf
• File Type:
  [PDF - 1.06 MB ]