01843nam a2200193 a 450000100080000000500110000800800410001910000230006024500350008326000400011830000100015850001260016852012810029465000110157565300210158665300140160765300150162170000130163613359342002-11-22       1999    bl uuuu      00u1 u    #d1 aSILVA, M. da G. da  aBase metal deposits of Brazil.  aBelo Horizonte: MME/CPRM/DNPMc1999  a108p.  aInvited papers presented in the Workshop on Base Metal Deposits of Brazil, held in Salvador, Bahia, from September, 1999.  aBrazilian panorama for copper, lead and zinc; Volcanic-exhalative sulphide deposits; Sedimentary-exhalative (SEDEX) sulphide deposits; Recent base metal discoveries in North America; Zinc mining and exploration in Australia, the current state of play-1998; Geology of the Caraiba copper mine and its surroundings in the paleoproterozoic Curaca belt - Curaca River Valley, Bahia, Brazil; Ore genesis at the salobo copper deposit, Serra dos Carajas; The Boquira lead-zinc mine in Central Bahia, Brazil; The Camaqua Cu (Au,Ag) and Santa Maria Pb-Zn (Cu,Ag) mines of Rio Grande do Sul, Southern Brazil - Is their mineralization syngenetic, diagenetic or magmatic hydrothermal ?; The Palmeiropolis volcanogenic massive sulfide deposit, Tocantins State; The magmatic arc of Western Goias: a promising explorating target; Pb-Zn ore deposits of Bambui and Vazante Groups, in Sao Francisco Craton and Brasilia fold belt, Brazil; Integrated studies and metallogenic evolution of the proterozoic sediment-hosted Pb-Zn sulfide deposits of the Sao Francisco Craton,Brazil; Greenstone belts and equivalent volcano-sedimentary sequences of the Sao Francisco Craton, Bahia, Brazil - Geology and mineral potential; The potential for VMS deposits in the greenstone belts in around the southern.  aBrazil  aEconomic Geology  aMetal ore  aMetalogeny1 aMISI, A.