Global ETD Search

21	The Geology and Geochemistry of Beryllium in Southern Arizona Balla, John Coleman January 1962 (has links) Nine beryllium deposits were studied in order to determine the geological environment of beryllium mineralization in southern Arizona. Beryllium occurs in two pegmatite areas, two contact metamorphic deposits, two quartz-tungsten veins, two quartz-feldspar veins, and in one quartz monzonite stock. It is associated in almost all of these deposits with purple fluorite and tungsten. Beryllium mineralization is associated with granitic and quartz monzonite intrusions of Laramide age, and generally occurs at the intersection of northwest-trending lineaments and the Texas lineament. abundance alkaline earth metals Arizona beryllium geochemistry metals southern Arizona United States Beryllium ores -- Arizona Geology -- Arizona Geochemistry -- Arizona
22	Geology, geochemistry, alteration, and mass transfer in the Sol prospect, a sub-economic porphyry copper-molybdenum deposit, Safford district, Graham County, Arizona Yarter, William Vernon January 1981 (has links) No description available. Geology -- Arizona -- Graham County. Copper ores -- Arizona -- Graham County. Mineralogy -- Arizona -- Graham County.
23	Geochemistry of the Laramide igneous suite of the Santa Rita and Empire Mountains, southeastern Arizona Trapp, Richard A. January 1987 (has links) No description available.