| 藏东各贡弄铜金多金属矿床地质特征及其成因初探 |
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| 引用本文： | 丁枫,唐菊兴,黄卫,陈生华,张金树.藏东各贡弄铜金多金属矿床地质特征及其成因初探[J].地质找矿论丛,2005,20(1):15-20. |
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| 作者姓名： | 丁枫 唐菊兴 黄卫 陈生华 张金树 |
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| 作者单位： | 成都理工大学,地球科学学院,成都,610059;西藏地矿厅地质六队,拉萨,850000 |
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| 基金项目： | 中国地质调查局地质调查项目 |
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| 摘 要： | 藏东各贡弄铜金多金属矿床工业价值巨大.矿区有燕山期和喜山期岩浆岩侵位于下三叠统马拉松多组地层中,喜山期石英二长斑岩与成矿关系密切.产于斑岩体内的矿体呈筒状,产于接触带夕卡岩中的矿体呈似层状.岩石地球化学反映出岩体围岩中富集的成矿元素来自于斑岩体,接触带附近矿化元素的变化与岩石的破碎程度,蚀变强度呈正相关关系.矿床同位素分析表征了流体的深源特征,并在成矿过程中有大气水的参入.矿床为斑岩型多金属矿床.
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| 关 键 词： | 各贡弄铜金属矿 地质特征 微量元素 同位素 斑岩型矿床 西藏自治区 |
| 文章编号： | 1001-1412(2005)01-0015-06 |
| 收稿时间： | 2004/2/23 0:00:00 |
| 修稿时间： | 2004年2月23日 |
GEOLOGICAL CHARACTERISTICS AND METALLOGENESIS OF THE GEGONGNONG POLYMETALLIC COPPER-GOLD DEPOSIT IN THE EASTERN TIBET |
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| DING Feng,TANG Ju-xing,HUANG Wei,CHEN Sheng-hua and ZHANG Jin-shu.GEOLOGICAL CHARACTERISTICS AND METALLOGENESIS OF THE GEGONGNONG POLYMETALLIC COPPER-GOLD DEPOSIT IN THE EASTERN TIBET[J].Contributions to Geology and Mineral Resources Research,2005,20(1):15-20. |
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| Authors: | DING Feng TANG Ju-xing HUANG Wei CHEN Sheng-hua and ZHANG Jin-shu |
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| Institution: | Chengdu university of technology, Sichuan, Chengdu 610059, China;Chengdu university of technology, Sichuan, Chengdu 610059, China;The 6th Geological Team of the Bureau of Geology and Mineral Resources of Tibet, Lasa 850000, China;Chengdu university of technology, Sichuan, Chengdu 610059, China;The 6th Geological Team of the Bureau of Geology and Mineral Resources of Tibet, Lasa 850000, China |
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| Abstract: | Gegongnong polymetal copper-gold deposit is of great industrial value. Himalayan intrusion in the mine district emplaced in the lower Triassic Malasongduo formation and the quartz monzonitic porphyre is closely related to the ore. Ore bodies take shape of pipes in the porphyre and those in the skarn at contact zone occur as layered ore bodies. The petrochemistry and geochemistry show that the concentrated ore elements in the host rock are derived from the porphyre. The ore element concentration is positively corvelated to fragmentation and alteration. The isotope compositions are characterized by deep source and incorperation of meteoritic water. The deposit is a porphyric Cu-Au polymetal ore deposit. |
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| Keywords: | Gegongnong Cu-Au polymetal ore deposit microelement isotope porphyric ore Tibet |
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