内蒙古朝不楞矽卡岩型铁多金属矿床辉钼矿铼_锇同位素年龄及地质意义_聂凤军.pdf

2007 8 A ug. 2007 28 4 : 3 15-323 A CTA G EOSC IENT ICA SIN ICA 28( 4) : 315-323 - 1) 1) 2 ) 1) 1) 聂凤军 张万益 杜安道 江思宏 刘 妍 1) , 100037; 2) , 100037 , 4 ) , ( 14017 ? 118) M a( 2R ) , M SW D 11 12 , , , ) - , , , , , Re-Os IsotopicAgeDating ofMolybdenite Separates from the Chaobuleng Skarn Iron-Polym etallicDeposit, Dong jimqin Banner, InnerMongolia 1) 1) 2) 1) 1) N IE F engjun ZHANG W any i DU A ndao JIANG S ihong L IU Y an 1) Institute of M inera l Resources, CA GS, B eij ing 100037; 2 ) N a tional R esearch C en ter of G eoanaly sis, B eij ing 100037 Abstract L ocated in the easternmo st part of the Chaganobo-A oyoute-Chaobu eng Ear y P a eozo ic tectono-m agm atic be t on the southern edge o f the S iber ian p a te, the Chaobu eng depo sit is a med ium-size skarn iron-po ym eta ic depos it occurr ing in centra- eastern InnerM ongo ia. System atic dri ing resu ts show tha t the depo sit conta insm eta reserv es o f F e 1. 9M t, B i 17 @ 104 t, Ag 222 t, Sn 0. 6 1 @ 104 t, Cu 3. 06 @ 104 t, A u 1. 68 t, Pb 95 18 t and W 3979 t. T he unique geo ogy o f the deposit has a ttracted the attention o f o re geo og ists from Ch ina and abr