| 四平山门银矿矿床成因的同位素地球化学证据 |
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| 引用本文： | 黄文斌,申浩澈.四平山门银矿矿床成因的同位素地球化学证据[J].地质与勘探,2006,42(4):46-50. |
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| 作者姓名： | 黄文斌 申浩澈 |
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| 作者单位： | 1. 中国地质科学院矿产资源研究所,北京,100037;中国地质图书馆,北京,100083
2. 长春大学,长春,130021 |
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| 摘 要： | 文章运用同位素地球化学方法对四平山门银矿成矿作用与区域岩浆活动的关系进行了探讨.对矿石矿物、含矿岩体、矿区地层的铅、硫、氢、氧同位素进行了测定,矿石的Pb-Pb等时线年龄173Ma,与矿区内花岗闪长岩体形成时代的末期接近;矿石矿物、含矿岩体及矿区地层中铅同位素组成对比表明,铅同位素主要与矿区内花岗闪长岩有密切关系.同时硫、氢、氧研究为山门银矿的矿床成因模式提供了准确的同位素证据.
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| 关 键 词： | 银矿 同位素地球化学 中生代 花岗闪长岩 成矿作用 |
| 文章编号： | 0495-5331(2006)04-0046-05 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-11-05 |
ISOTOPIC GEOCHEMISTRY EVIDENCE FOR GENESIS OF SHANMEN SILVER DEPOSIT,SIPING |
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| HUANG Wen-bin,SHEN Hao-che.ISOTOPIC GEOCHEMISTRY EVIDENCE FOR GENESIS OF SHANMEN SILVER DEPOSIT,SIPING[J].Geology and Prospecting,2006,42(4):46-50. |
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| Authors: | HUANG Wen-bin SHEN Hao-che |
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| Institution: | 1. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037 ; 2. Chinese Geological Library, Bering 100083 ;3. Jilin University, Changchun 130021 |
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| Abstract: | Based on isotopic geochemistry, relationship between mineralization of Shanmen silver deposit and regional magmatic activity is discussed. Pb, S, H and O isotopic compositions of ores, ore- bearing intrusive body and strata are determined. Model age for Pb -Pb isochron for ores is 173 Ma, and close to intrusive age of granodiorite in the mine. Comparison of Pb isotopic composition of ores, ore - bearing intrusive body and strata shows that Pb isotope is tightly associated with granodiorite, and differs from the strata. Silver mineralization in the Sbanmen deposit has an intimate relationship with Mesozoic magmatic activity. This study provides an exact isotope evidence for genesis of Shanmen silver deposit. |
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| Keywords: | silver deposit isotopic geochemistry Mesozoic granodiorite mineralization |
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