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Relations of Tectonics to Ore Deposits in the Southern Cordillera Edited by William R. Dickinson & William D. Payne MAGMATIC ARC SUB -ARC PETROLOGIC ELEMENTS VOLCANIC SEQUENCE PLUlONS ==--~------- I I, Upper Crust + + + + Lower Crust + + + ---; / ~// E/ g~ Sub-arc Li t hosphere ~/ 0/ a I 25 50 I I SCALE IN 100 I KM ARC - TRENCH SYSTE M Asthen osph ere Wedge Subducted Crust ARIZONA GEOLOGICAL SOCIETY DIGEST VOLUME XIV Tucson, Arizona 1981 TABLE OF CONTENTS A PLATE TECTONIC-LITHOTECTONIC CLASS I FICATION OF ORE DEPOSITS . J . M . Guilb e r t 1 A REVIEW OF THE PRECAMBRIAN VOLCANOGENIC MASSIVE SULFIDE DEPOSITS IN CENTRAL ARIZONA AND THE RELATIONSHIP TO THEIR DEPOSITIONAL ENVIRONMENT . . . . . M . E . Donnelly, G . A . Hahn 11 ACCRETIONARY TECTONICS IN WESTERN NORTH AMERICA. . . . • . . . . . . . • . . • . . . . . . • P . J . Coney 23 MAGMA SOURCES IN CORDILLERAN SETTINGS . . . . . . . . . . . • . . . . . . . . . . . P . J . Wyl l i e 39 O R E DEPOSITS I N CORDILLERAN AND ISLAND-ARC SETTINGS . . • . . . . • . • • • . . . . • . . . R . H . S il l itoe 49 . . . . • . • . . . . • . . . . • . C . W . Burnham 71 GEOLOGIC AND GEOTECTONIC SETTING OF PORPHYRY COPPER DEPOSITS IN THE SOUTHERN CORDILLERA . . S . R . T it ley 79 TECTONIC AND GEOCHEMICAL SETTING OF TUNGSTEN SKARN MINERAL IZATION IN THE CORDILLERA. . . . . R . J . Newb erry, M . T . Einaud i 99 PLATE TECTONIC EVOLUTION OF THE SOUTHERN CORDILLERA . . . . . . . PHYSICOCHEMI CAL CONSTRAINTS O N PORPHYRY MINERALIZATION . . . • . . • • . . . . . • . . • . . • • . AGE TRENDS O F IGNEOUS ACTIVITY IN RELATION TO METALLOGENESIS IN THE SOUTHERN CORD ILLERA . . . . . . P . E . Damon , M. • . . . 113 Sha f iqul lah, K . F . Clark 137 . . • W . R . D ickinson • . . REGIONAL STRAIN ANALYSIS OF THE SUPERPOSED DEFORMATIONS IN SOUTHEASTERN ARIZONA AND THE EASTERN GREAT BASIN . . . • . . . EOCENE TECTONICS AND SED IMENTATION IN THE COLORADO PLATEAU-ROCKY MOUNTAIN AREA. • • • • • • • • • • . • • • • • • • • • • • • • • • • • VOLCANO-TECTONIC SETTING OF TERTIARY ORE DEPOSITS, SOUTHERN ROCKY MOUNTAIN S • . G . H . Dav i s 155 C . E . Chapin, S . M . Ca ther 173 P . W . L ipman 199 A . A . Bookstrom 215 . . . . . • . • . . . . . . . . J . J . Rytuba 227 PRECIOUS METAL DEPOSITS ASSOC IATED WITH VOLCANIC ENVIRONMENTS I N THE SOUTHWEST . . . . . . L . J . Buchanan 237 BULK TONNAGE GOLD DEPOSITS IN VOLCANIC ENVIRONMENTS . J . E . Wor t h ington 263 TECTONIC SETTING AND GENERATION OF ROCKY MOUNTAIN PORPHYRY MOLYBDENUM DEPOSITS RELATION OF CALDERAS TO ORE DEPOSITS IN THE WESTERN UNITED STATES . . . . . . • . . • . . . . . CHARACTERISTICS OF D IS SEMINATED S ILVER DEPOSITS IN THE WESTERN UNITED STATES . . . . . . F . T . Graybeal 271 MINERALIZATION RELATED T O THE VOLCANIC CENTER AT BEATTY, NEVADA . . . . . R . Ahern, R . M . Corn 283 ABSTRACTS O F OTHER PAPERS GIVEN ORALLY . . R . A . P r ic e , S . B . Ke i t h , T . L . He idr ick 287 . . . . . . . . . . vii . . . . . . . . . . . . . . . • . . . . .