Report of Investigations 9145: Characterization of Ketchem Dome Tin Prospect, East-Central Alaska

Details

• Journal Article:
  Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9145
• Personal Author:
  Brown, Lawrence L. ; Dahlin, David C. ; Warner, J. Dean
• Description:
  The Bureau of Mines investigated the Ketchem Dome Tin Prospect in east-central Alaska to evaluate the tin resource. The studies included field investigations, mineralogical characterization, and concentration of the tin-bearing minerals. The tin mineralization consists of cassiterite (sNO2), which occurs as grains disseminated in a greisen (quartz-mica) matrix. A bulk sample from the largest and best-developed greisen vein exposed at Ketchem Dome contained 0.51 pct sn. Concentration of the cassiterite by gravity table methods resulted in a product that contained 56 pct of the tin at a grade of 41.4 pct sn. The mineralization exposed at Ketchem Dome is typical of greisen found in the area and elsewhere in interior Alaska. [Description provided by NIOSH]
• Subjects:
  Metals Mining Occupational Health Safety
• Keywords:
  Field-tests; Mineralogy; Concentration-composition; Cassiterite; Beneficiation; Tin-ore-deposits; Geological-surveys
• Source:
  Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9145, 1987 Jan; :1-11
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Alaska ; OSHA Region 10
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  ALRC - Albany Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  16 pdf pages
• NIOSHTIC Number:
  nn:10006027
• NTIS Accession Number:
  PB88-229869
• Federal Fiscal Year:
  1987
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c1ca3d753d0f45b2206e3c4f798ec7f792bee44671b224b0fe4d01ac317175007e3d1ddc422b76db36a1bd65b142aac26fe5fcf39d68d69c0a4bd1c88357d5bf
• Download URL:
  https://stacks.cdc.gov/view/cdc/10349/cdc_10349_DS1.pdf
• File Type:
  [PDF - 5.69 MB ]