| 天山东段尾亚地区麻粒岩相变质岩存在的矿物化学证据 |
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| 引用本文： | 陈义兵,胡霭琴.天山东段尾亚地区麻粒岩相变质岩存在的矿物化学证据[J].矿物学报,1998,18(3):377-382. |
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| 作者姓名： | 陈义兵 胡霭琴 |
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| 作者单位： | 中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640 |
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| 基金项目： | 国家科技攻关项目!85－902－06－02，国家自然科学基金!49372139 |
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| 摘 要： | 本文根据天山东段尾亚地区麻粒岩的主要造岩矿物斜方辉石、单斜辉石、黑云母、石榴子石和斜长石的电子探针分析结果，重点研究了尾亚麻粒岩各主要造岩矿物的化学成分特点，并且讨论其对变质作用温度压力条件的指示意义。矿物化学的研究结果表明，变质作用峰期达到了中压麻粒岩亚相。
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| 关 键 词： | 麻粒岩 电子探针 矿物化学 天山东段 |
A STUDY ON THE MINERAL CHEMISTRY OF WEIYA GRANULITES IN EASTERN TIANSHAN, NW CHINA |
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| Chen Yibing, Hu Qiqing, Zhang Guoxin, Zhang Qianfeng.A STUDY ON THE MINERAL CHEMISTRY OF WEIYA GRANULITES IN EASTERN TIANSHAN, NW CHINA[J].Acta Mineralogica Sinica,1998,18(3):377-382. |
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| Authors: | Chen Yibing Hu Qiqing Zhang Guoxin Zhang Qianfeng |
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| Abstract: | The Proterozoic metamorphic rocks are widely spread in the Weiya region. The granulites take the form of lensoid bodies which are scattered within the dominant gneisses. All the minerals studied in this paper are separated from these granulites.Fifteen main minerals, including five orthopyroxenes, two clinopyroxenes, four biotites, two garnets and two plagioclases from the granulites, were analyzed using electron microprobe. A detailed mineral chemical study was made. The compositional characteristics of these main minerals show that they are products of granulite-facies metamorphism. |
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| Keywords: | granulite electron microprobe mineral chemistry eastern Tianshan |
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