Feasibility of Economic Gold Mining in the Juneau Gold Belt Area of the Juneau Mining District, Alaska

Details

• Personal Author:
  Baggs DW ; Sherman, Gary E.
• Description:
  Preliminary economic mining feasibility studies were conducted by the Bureau of Mines to estimate mining costs in the Juneau gold belt area of the Juneau Mining District, southeastern Alaska. Investigations were conducted on the economics of two mineral deposit types: Berners Bay vein gold deposits and stockwork gold deposits containing gold, silver, and lead. Cost estimates were developed using the Bureau of Mines cost estimating system. Discounted cash flow return on investment (dcfroi) was calculated using the Bureau's minsim computer program. Underground mining of a Berners Bay vein gold deposit was found to be economic (15-pct DCfroi) at a recoverable metal value of $353.67/Mt for a 100-mtpd shrinkage stoping mine with a 10-yr mine life, $324.76/Mt for a 20- yr mine life, $136.63/Mt for a 500-mtpd longhole stoping mine with a 10-yr mine life, and $127.50/Mt for a 20-yr mine life. Block caving mining of a large stockwork gold deposit was found. [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:
  AVRC - Avondale Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-16
• NIOSHTIC Number:
  nn:10006183
• NTIS Accession Number:
  PB88-221189
• Citation:
  NTIS: PB 88-221189 :16 pages
• Federal Fiscal Year:
  1988
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 88-221189
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d0c71ce61decea0cd11ab149ee4c8d1f63606d207b280f51fbbd8a456818a5525e5d03df453cc0a71a97e598f21e1a557d074fb5c97437e0c7895220ab0cf84b
• Download URL:
  https://stacks.cdc.gov/view/cdc/206847/cdc_206847_DS1.pdf
• File Type:
  [PDF - 845.14 KB ]