Oreshoot Zoning in the Carlin-Type Betze Orebody, Goldstrike Mine, Eureka County, Nevada
Oreshoot Zoning in the Carlin-type Betze Orebody, Goldstrike Mine, Eureka County, Nevada By Stephen G. Peters1, Gregory C. Ferdock2, Maria B. Woitsekhowskaya1, Robert Leonardson3, and Jerry Rahn3 Open-File Report 98–620 1998 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY 1U.S. Geological Survey, Reno Field Office, Mackay School of Mines, MS-176, University of Nevada, Reno, Nevada 89557-0047 2Department of Geological Sciences, Mackay School of Mines, University of Nevada, Reno, Nevada 89557-0047 3Mine Geology Department, Barrick Goldstrike Mines, Inc., P.O. Box 29, Elko, Nevada 89803. Oreshoot Zoning in the Carlin-type Betze Orebody, Goldstrike Mine, Eureka County, Nevada by Stephen G. Peters1, Gregory C. Ferdock2, Maria B. Woitsekhowskaya1, Robert Leonardson3, and Jerry Rahn3 1U.S. Geological Survey, Reno, Nevada. 2Mackay School of Mines, University of Nevada, Reno, Nevada. 3Barrick Goldstrike Mines, Inc., Elko, Nevada Abstract Field and laboratory investigations of the giant Betze gold orebody, the largest Carlin-type deposit known, in the north-central Carlin trend, Nevada document that the orebody is composed of individual high-grade oreshoots that contain different geologic, mineralogic, and textural characteristics. The orebody is typical of many structurally controlled Carlin-type deposits, and is hosted in thin-bedded, impure carbonate or limy siltstone, breccia bodies, and intrusive or calc-silicate rock.
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