thumbnail

Qualitative assessment of selected areas of the world for undiscovered sediment-hosted stratabound copper deposits: Chapter Y in Global mineral resource assessment

Scientific Investigations Report 2010-5090-Y

By:
, , , , , , , , and
Edited by:
Michael L. Zientek, Jane M. Hammarstrom, and Kathleen M. Johnson
https://doi.org/10.3133/sir20105090Y

Links

Abstract

A qualitative mineral resource assessment of sediment-hosted stratabound copper mineralized areas for undiscovered copper deposits was performed for 10 selected areas of the world. The areas, in alphabetical order, are (1) Belt-Purcell Basin, United States and Canada; (2) Benguela and Cuanza Basins, Angola; (3) Chuxiong Basin, China; (4) Dongchuan Group rocks, China; (5) Egypt–Israel–Jordan Rift, Egypt, Israel, and Jordan; (6) Maritimes Basin, Canada; (7) Neuquén Basin, Argentina; (8) Northwest Botswana Rift, Botswana and Namibia; (9) Redstone Copperbelt, Canada; and (10) Salta Rift System, Argentina. This assessment (1) outlines the main characteristics of the areas, (2) classifies known deposits by deposit model subtypes, and (3) ranks the areas according to their potential to contain undiscovered copper deposits.

An analytic hierarchy process (AHP) was used to rank assessment areas according to their potential for undiscovered copper deposits. Once the main characteristics of each area were compiled (age of host rock, geologic setting, stratigraphy, host lithology, deposit subtype(s), known deposits and occurrences, and mineral system components), three criteria (mineralization, extent of study area, and lithostratigraphic framework, each with multiple subcriteria) were scored for all assessment areas. Relative weights and scores were assigned to all criteria by three geologists. In addition, the assessment areas were ranked for comparison exclusively on the basis of professional opinion. The AHP and professional opinion lists are similar but not the same. Both the professional opinion and the cumulative AHP lists rate the Northwest Botswana Rift in Botswana and Namibia as the area most likely to contain the most undiscovered copper deposits. The Salta Rift System in Argentina is rated lowest among the 10 qualitatively assessed areas.

Suggested Citation

Zientek, M.L., Wintzer, N.E., Hayes, T.S., Parks, H.L., Briggs, D.A., Causey, J.D., Hatch, S.A., Jenkins, M.C., and Williams, D.J., 2015, Qualitative assessment of selected areas of the world for undiscovered sediment-hosted stratabound copper deposits: U.S. Geological Survey Scientific Investigations Report 2010–5090–Y, 143 p., and spatial data, http://dx.doi.org/10.3133/sir20105090Y.

ISSN: 2328-0328 (online)

Study Area

Table of Contents

  • Abstract
  • Chapter 1. Qualitative Assessment of Sediment-Hosted Stratabound Copper Permissive Tracts
  • Chapter 2. Tectonics, Stratigraphy, and Economic Geology of Qualitatively Assessed Tracts
  • Conclusions
  • Acknowledgments
  • References Cited
  • Appendix A. Description of GIS Files
  • Appendix B. Analytic Hierarchy Process Input
  • Appendix C. Assessment Team

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Qualitative assessment of selected areas of the world for undiscovered sediment-hosted stratabound copper deposits: Chapter Y in Global mineral resource assessment
Series title:
Scientific Investigations Report
Series number:
2010-5090
Chapter:
Y
DOI:
10.3133/sir20105090Y
Year Published:
2015
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Geology, Minerals, Energy, and Geophysics Science Center
Description:
Report: xi, 143 p.; GIS Data
Larger Work Type:
Report
Larger Work Subtype:
USGS Numbered Series
Larger Work Title:
Global mineral resource assessment
Country:
Angola, Argentina, Botswana, Canada, China, Egypt, Israel, Jordan, Namibia United States
Other Geospatial:
Belt-Purcell Basin, Benguela Basin, Cuanza Basin, Chuxiong Basin, Dongchuan Group, Egypt-Israel-Jordan Rift, Maritimes Basin, Neuquen Basin, Northwest Botswana Basin, Redstone Copperbelt, Salta Rift System
Online Only (Y/N):
Y
Additional Online Files (Y/N):
Y