| 论藏东玉龙斑岩铜矿带成岩成矿物质来源 |
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| 引用本文： | 马鸿文.论藏东玉龙斑岩铜矿带成岩成矿物质来源[J].现代地质,1988,2(4):429. |
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| 作者姓名： | 马鸿文 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 本文在对玉龙矿带花岗斑岩类微量元素和锶、铅、硫、氢氧同位素地球化学研究的基础上,论证了成岩与成矿物质的同源性关系,以及两者和初始岩浆水的下地壳和上地幔来源,提出斑岩型铜矿床的规模在一定程度上有随含矿岩浆中幔源与壳源成分的比例减小而减小的趋势。
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| 关 键 词： | 西藏 花岗岩类 斑岩铜矿 同位素 物质来源 |
ON THE SOURCE OF ROCK-AND ORE-FORMING MATERIAL IN YULONG PORPHYRY COPPER BELT EASTERN TIBET |
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| Ma Hongwen.ON THE SOURCE OF ROCK-AND ORE-FORMING MATERIAL IN YULONG PORPHYRY COPPER BELT EASTERN TIBET[J].Geoscience——Journal of Graduate School,China University of Geosciences,1988,2(4):429. |
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| Authors: | Ma Hongwen |
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| Abstract: | Based on the studies of trace element and stronium, lead, sulfur, and hydrogen, oxygen isotope gcochemical study of granitic porphyries in Yulong porphyry copper belt, the magmas of porphyries hosting copper mineralisation and ore-forming material as well as the most part of hydrothermal fluid scperated from the magmas in the belt are thought by the author to have been derived mainly from the lower crust and upper mantle, and it appears that the scale of copper mineralization of porphyry type tends to decrease with decreasing ratio of material from mantle to that from crust for an ore-forming magma. |
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| Keywords: | Kay words: Tibet granites porphyry copper deposits isotope materialsource |
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