USGS - science for a changing world

Central Mineral and Environmental Resources Science Center

  CMERSC Home | About Us | Our Science | Projects | Products | Contact Us

Project status is complete. Please check the CMERSC project list for currently active projects.

Metallogeny of the Great Basin: Crustal Evolution, Fluid Flow, and Ore Deposits

Project Objectives

Key objectives of this project were

  1. synthesis of the enormous amount of information generated over past decades in the Great Basin by the USGS, States, academia, mining and petroleum industry into an atlas of digital maps, cross sections, and relational databases,
  2. these maps, sections and databases augmented and combined with new information from critical topical or geographic areas to address fundamental problems of ore genesis for a variety of ore deposit types,
  3. a digital 4-D geologic model constructed in northern Nevada that encompasses the major mineral belts,
  4. detailed 4-D models constructed for large mining districts such as the Carlin trend,
  5. the 4-D models used to reconstruct the geology for important periods of ore formation on regional and district scales, and
  6. the resulting 3-D reconstructions the foundation for numerical models of fluid flow, metal transport, and ore deposition.

Relevance & Impact

The project products of geologic maps, sections, data bases, 4-D models and reconstructions are valuable products in their own right and strive to increase understanding of the geology of the Great Basin and the relation of ore deposits to its tectonic history. Documentation of the spatial and temporal relationships between ore deposits of different types and ages together with the fluid flow and chemical modeling results assist in an improved understanding of the fundamental controls on metallogeny in this world class gold province and the roles of crustal structures and inheritance in mineral belts. The identification of these controls and the methods of study developed during the course of this project are exportable to other regions of interest and should be of value to future metallogenic and assessment studies at home and abroad. Further, the resulting data and interpretations, in particular an information bank on areas in the Great Basin likely to receive focused attention from the mining industry in the future, provide scientific syntheses highly relevant to decision makers in other Federal, State, and Local agencies.

Project Chiefs:

Albert Hofstra
Phone: 303-236-5530
Email: ahofstra@usgs.gov

Alan R. Wallace
Phone: 775-784-5789
Email: alan@usgs.gov

Products

Great Basin tectonics and metallogeny: Geosphere online journal.

Hofstra, A.H., and Wallace, A.R., 2006, Metallogeny of the Great Basin: Crustal evolution, fluid flow, and ore deposits: U.S. Geological Survey Open-File Report 2006-1280, 36 p.

Other products are listed according to task:


4-D geologic model of northern Nevada mineral belts and atlas of Great Basin geology and ore deposits

Presentations

Reports

Return to top of this page


Neogene tectonics, ore deposits, and Middle Miocene reconstruction

Presentations

Maps

Reports

Return to top of this page


Paleogene tectonics, ore deposits, and Late Eocene reconstruction

Posters

Presentations

Maps

Reports

Return to top of this page


Mesozoic-Cenozoic plutons and pluton-related ore deposits

Presentations

Reports

Return to top of this page


Late Paleozoic to Early Tertiary Contractional Deformation

Presentations

Maps

Reports

Return to top of this page


Paleozoic passive margin carbonate platform: Stratigraphic, sedimentologic, petrographic, and structural relationships to syngenetic ore deposits

Presentations

Reports

Return to top of this page


Precambrian crust/mantle domains, crustal faults, and ore deposits

Presentations and Posters

Reports

Return to top of this page


District scale geologic, fluid flow, and geochemical models

Presentations

Reports

Workshops

Return to top of this page


Related Links

USGS Great Basin Integrated Landscape Monitoring (GBILM) Pilot

Mineral Resources Program
Eastern Central Western Alaska Minerals Information Crustal Geophysics and Geochemistry Spatial Data

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USAGov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://minerals.cr.usgs.gov/projects/great_basin/index.html
Page Contact Information: CMERSC Webmaster
Page Last Modified: 04-Mar-2013@14:35