Economic Feasibility of Mining in the Colville Mining District, Alaska

Details

• Personal Author:
  Coldwell JR ; Gensler EC
• Description:
  Mining and processing cost analyses were conducted by the U.S. Bureau of Mines on stratiform zinc-lead-silver, coal, and stratiform barite deposit types that are found in the Colville Mining District. Reserves and gross revenues which would allow these deposits to be minable were modeled. A 15% Discounted cash-flow rate-of-return economic threshold was selected as the minimum acceptable return on investment for the three deposit types. The economic modeling indicated combinations of grades and tonnages for stratiform sulfide deposits that could be economically viable for orebodies ranging in size from 25 to 130 million metric tons. The gross revenues for a surface mine range from $200/mt for a 5,000 mtpd operation using the proposed South corridor to $140/mt for a 17,000 mtpd mine using the proposed North corridor. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Alaska Cost-analyses Economic-feasibility Gross-revenues Models Reserves
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Publisher:
  U.S. Department of the Interior, Bureau of Mines
• Document Type:
  Text
• Genre:
  Report
• 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:
  1-32
• NIOSHTIC Number:
  nn:20039518
• NTIS Accession Number:
  PB95-263273
• Citation:
  Juneau, AK: U.S. Department of the Interior, Bureau of Mines, OFR 49-95, 1995 Jul; :1-32
• Federal Fiscal Year:
  1995
• Peer Reviewed:
  False
• Source Full Name:
  Juneau, AK: U.S. Department of the Interior, Bureau of Mines, OFR 49-95
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:bfc1c79c9596e24bf7afc4e2708b0d854a5e3fb40097f03b46097ccc59236225bcfa862ff71741c7ff718f40004f490361c58da0b202e94e8465b92deabe5e20
• Download URL:
  https://stacks.cdc.gov/view/cdc/207075/cdc_207075_DS1.pdf
• File Type:
  [PDF - 1.73 MB ]