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Fact Sheet 2008–3083

Evolution of Ore Deposits and Technology Transfer Project:

Isotope and Chemical Methods in Support of the U.S. Geological Survey Science Strategy, 2003–2008

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Principal functions of the Mineral Resources Program are providing information to decision-makers related to mineral deposits on federal lands and predicting the environmental consequences of the mining or natural weathering of those deposits. Performing these functions requires that predictions be made of the likelihood of undiscovered deposits. The predictions are based on geologic and geoenvironmental models that are constructed for the various types of mineral deposits from detailed descriptions of actual deposits and detailed understanding of the processes that formed them. Over the past three decades the understanding of ore-forming processes has benefitted greatly from the integration of laboratory-based geochemical tools with field observations and other data sources. Under the aegis of the Evolution of Ore Deposits and Technology Transfer Project (EODTTP), a five-year effort that terminated in 2008, the Mineral Resources Program provided state-of-the-art analytical capabilities to support applications of several related geochemical tools.

Version 1.0

Posted October 2008

For more information contact:
Robert O. Rye or Craig A. Johnson
U.S. Geological Survey, MS 963
Denver, CO 80225

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Suggested citation:

Rye, R.O., Johnson, C.A., Landis, G.P., Hofstra, A.H., Emsbo, P., Stricker, C.A., Hunt, A.G., and Rusk, B.G., 2008 Isotope and Chemical Methods in Support of the U.S. Geological Survey Science Strategy, 2003-2008: U.S. Geological Survey Fact Sheet 2008-3083, 6 p.


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