Western Mineral Resources
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| Publication listing | ||
Interests: |
Economic geology |
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Metallogeny |
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GIS / Spatial modeling |
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Environmental geology |
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Contact: |
775-784-5596 |
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| Fax 775-784-5079 | ||
| graines@usgs.gov | ||
Education |
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| B.A. Geophysics: University of California, Los Angeles (1969) | ||
| M.S. Geology: Colorado Schoool of Mines (1971) | ||
| Ph.D. Geology/Statistics: Colorado School of Mines (1974) | ||
| NRC Post Doctoral Fellow, USGS (1974-1976) | ||
Experience |
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| I have worked for the USGS in Denver, Reston, and Reno since 1974. I spent the first 10 years studying the spectral properties of rocks, soils, and vegetation as the physical properties foundation for developing digital image processing techniques to process satellite data to map hydrothermal alteration. In addition, I helped develop statistical techniques to analyze linear features as predictors of regional controls of mineralization. I applied both of these techniques to mineral assessment and exploration tasks on most continents with extensive fieldwork in western United States, Mexico, and Saudi Arabia. In 1984 to 1988, I was reassigned as Deputy Chief of the Office of Mineral Resources Program in Reston with responsibilities for geophysics, international activities, and GIS. Then in 1988, I was asked to establish the Reno Field Office at UNR. I managed this office for 4 years. In 1991, I returned to research activities. My research for the last decade has addressed quantitative methods of spatial data integration. In particular, I have been working on integrating geology, geochemistry, geophysics, and other types of geologic data to predict the locations of undiscovered mineral deposits and the integration of geologic information with biological information to address environmental problems. | ||
Current Activities |
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| For the last few years my activities have focused on two GIS-related areas: data integration research and standards for digital geologic maps. For data integration, weights of evidence has been implemented in Arcview http://gis.nrcan.gc.ca/software/arcview/wofe in a cooperative effort with the Geological Survey of Canada funded by a group of 6 mining companies. With this implementation the research has involved developing a better understanding of how to use this approach and the limitations. Subsequently, mathematical approaches have also been implemented thru a cooperative effort with the Geological Survey of Canada funded by a group of 6 mining companies and the Alaskan Geological Survey. These other methods are logistic regression, fuzzy logic, and neural networks techniques for data integration. With these additional techniques the research is focusing on comparison of these various approaches. This research in data integration has been hindered by the lack of digital standards for geologic maps. In 1996, I was selected as chairman of a committee in association with the American Association of State Geologists and the Geological Survey of Canada to develop digital standards for geologic maps http://geology.usgs.gov/dm/. A North American Steering Committee is now proceeding to implement this standard. | ||
Other Western Region Mineral Resources offices
Menlo Park / Spokane / Tucson
Return to: Western Mineral Resources Team Homepage
| Mineral Resources | Eastern / Central / Western / Alaska / Minerals Information |
| Crustal Imaging & Characterization / Spatial Data |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://minerals.usgs.gov/west/reno/gary.htm
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Page Last Modified: 24-Oct-2007@17:01
