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Browsing by Subject "dikes"
Now showing items 1-18 of 18
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A geological study of the Betze gold deposit, Eureka County, Nevada
(University of Nevada, Reno, 1992)Regional tectonism, dated intrusive events, evidence of local episodic hydrothermal activity and alteration, and mineralogic, geochemical and oxygen stable isotopic evidence are evaluated to profile the Betze gold deposit's ... -
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Geology and mineralization of the Pine Grove-Rockland mining districts, Lyon County, Nevada
(University of Nevada, Reno, 1975)The geology and mineralization of the Pine Grove - Rockland mining districts have been studied and are described in this thesis. -
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Geology and tungsten mineralization of a portion of the Ragged Top mining district, Pershing County, Nevada
(University of Nevada, Reno, 1980)The area surrounding Ragged Top Mine in south –central Pershing County, Nevada, is underlain by Late Triassic-Jurassic sediments which are intruded by a Cretaceous granodiorite pluton. Tertiary volcanics overlie both the ... -
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Geology and uranium content of Middle Tertiary ash-flow tuffs in the southern Nightingale Mountains and northern Truckee Range, Washoe County, Nevada
(University of Nevada, Reno, 1982)Uranium is associated with fault zones or the Middle Tertiary ash-flows, where it occurs in or near the basal porous glassy zone of the Tuff of Rattlesnake Canyon. Structure throughout this area is due to the interaction ... -
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Geology of a uranium deposit in the Virginia Mountains, Washoe County, Nevada
(University of Nevada, Reno, 1956)The rocks found in the area of study are mainly Mio-Pliocene welded rhyolite tuffs and are part of the acid and intermediate pyroclastic rocks that cover much of west central Nevada. Uranium minerals have been found in the ... -
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Geology of La Plata Canyon, Stillwater Range, Nevada
(University of Nevada, Reno, 1979)The La Plata Canyon area is composed of sediments, metasediments, and volcanics that have been intruded by a Tertiary-Cretaceous granitic pluton and two younger dike systems. -
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Geology of the Buffalo Valley prospect, Lander County, Nevada
(University of Nevada, Reno, 1985)No abstract provided. -
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Geology of the Corral Canyon area, Churchill County, Nevada
(University of Nevada, Reno, 1955)The geology and mineralization of Corral Canyon were studied. Low-grade titanium deposits occur in dikes which cut diorite. Alteration of the diorite and dikes is extensive. Gold was deposited in some dikes. -
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Geology, structural setting, and gold deposits of the Argus district, Inyo County, California
(University of Nevada, Reno, 1988)The geology, structural setting, and gold deposits of the Argus mining district have been studied. Mineral deposits of the district formed following emplacement of felsic intrusives and are probably of Miocene age. -
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Petrography, alteration, and mineralization of igneous dikes of the Jerritt Canyon District, Elko County, Nevada
(University of Nevada, Reno, 1994)The petrography, alteration, and mineralization of igneous dikes of the Jerritt Canyon District have been studied. Four types of igneous dikes intrude the sedimentary rocks and two are locally gold ore. The oldest and most ... -
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Porphyry-type gold mineralization of late Neogene age at the Zule volcanic center, Sierra County, California
(University of Nevada, Reno, 1992)The volcanic setting, alteration, geochemical characteristics, and association of gold with quartz stockwork, hydrogene iron oxides, and hypersaline fluid inclusions suggest this is a shallowly-exposed porphyry gold system. -
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Stratigraphy, structure and geochemistry of the Horse Canyon disseminated Gold Mine, Eureka Co., Nevada
(University of Nevada, Reno, 1992)The Horse Canyon gold deposit is hosted by Devonian Wenban Limestone (lower plate), and Ordovician Vivini Formation (upper plate). The Roberts Mountains thrust runs through the deposit. -
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The calera vein system, Orcopampa District, southern Peru: association of tectonism, magmatism and hydrothermal activity in the formation of a bonanza Ag-Au deposit
(University of Nevada, Reno, 1992)The tectonism, magmatism, and hydrothermal activity of the Calera vein system was studied. -
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The geology and ore deposits of the Red Canyon mining district, Douglas County, Nevada
(University of Nevada, Reno, 1971)The geology and ore deposits of the Red Canyon mining district are described in this thesis. -
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The geology of the central part of the Benton Range, east-central California
(University of Nevada, Reno, 1986)The geology of the central part of the Benton Range has been studied. This report details results of the field and petrographic study of pre-Cenozoic rocks found in the study area. About 51 square-km were mapped at 1:24,000 scale. -
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The geology of the Tuscarora Mining District, Elko County, Nevada
(University of Nevada, Reno, 1992)The geology and mineralization of the Tuscarora mining district has been studied. -
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The geology of the West Walker Canyon area, Mono County, California with emphasis on late magmatic stage veining
(University of Nevada, Reno, 1981)The geology of the West Walker Canyon area, located in Mono County, California, has been studied and described in this thesis. Emphasis has been placed on studying late magmatic stage veining. -
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The petrochemistry of the allanite bearing granitoids, Red Rock area, Washoe County, Nevada
(University of Nevada, Reno, 1978)Field geologic and petrochemical studies were conducted on allanite-bearing tonalite dikes and a series of Cretaceous Sierran-type intrusives.