The Duluth Gabbro Complex in northeastern Minnesota possibly contains a significant domestic copper resource and the Nation's largest nickel resource. Exploration has discovered large low-grade copper-nickel (Cu-Ni) deposits between Hoyt Lakes and the Boundary Waters Canoe Area. The mining and processing of Cu-Ni will have environmental, economic, and social impacts. The purpose of the study is to relate major environmental, economic, and social considerations to various aspects of Cu-Ni extraction. An open pit and two underground (block caving and open stoping with backfilling) models were developed to generate information on the impact of Cu-Ni extraction. Important considerations having environmental, economic, and social impacts during various aspects of Cu-Ni extraction are identified and defined. These aspects are exploration, development, mining, beneficiating, smelting, industrial, energy, climatic, resource, water, air emission, waste disposal, employee, tax and royalty, transportation, and community considerations.

  • Corporate Authors:

    University of Minnesota, Minneapolis

    Department of Civil and Mineral Engineering, 122 Civil and Mineral Engineering Building
    Minneapolis, MN  United States  55455-0220

    Bureau of Labor Statistics

    441 G Street, NW
    Washington, DC  United States  20212
  • Authors:
    • Hays, R M
  • Publication Date: 1975-8

Media Info

  • Pagination: 149 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00090870
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Report
  • Contract Numbers: S0133089
  • Files: TRIS
  • Created Date: Jun 26 1976 12:00AM