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Geology, alteration, and geochemistry of the McGinness Hills area, Lander County, Nevada
(University of Nevada, Reno, 1985)
Two distinct hydrothermal systems have been active in McGinness Hills: an older (35 m.y.) system characterized by quartz + kaolinite i alunite alteration of andesite, and a younger (2.7 m.y.) hot-spring system that produced ...