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《Geological Science and Technology Information》 2001-04
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A DISCUSSION ON THE METAL SOURCE OF BAIYIN VOLCANIC HOSTED MASSIVE DEPOSIT FROM THE NORTH QILIAN MOUNTAINS

Wang Yan 1 Zhang Qi 2 Xu Rong hua 2 Qian Qing 2( 1.Department of Geology,Northwest University,Xi'an Shaanxi 710069,China; 2.Institute of Geology and Geophysics,CAS,Beijing 100029,China )  
The paper has reviewed the international progresses on the study of metal sources for the volcanic hosted massive sulfide deposit.A study of lead isotope is made for ores and rhyolites respectively in the Baiyin deposit. The results show that the metal source of the Baiyin deposit is a mixture of magmatic fluid and recycled hydrothermal fluid.The metal copper,zinc and iron etc.are derived directly from the magmatic fluid whereas lead is leached from terrigenous and pelagic sediments by hydrothermal fluid.
【Fund】: 国家自然科学基金资助项目 ( 4 96 72 14 1;49872 0 2 7);; 陕西省教委 1998年度基金资助项目;; 陕西省科委 1999年度基金资助项目
【CateGory Index】: P611
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