| 甘肃敦煌地区太古宙孔兹岩系特征 |
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| 引用本文： | 于海峰, 梅华林, 李铨. 甘肃敦煌地区太古宙孔兹岩系特征[J]. 华北地质, 1998, (1): 19-25. doi: 10.3969/j.issn.1672-4135.1998.01.003 |
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| 作者姓名： | 于海峰 梅华林 李铨 |
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| 作者单位： | 地矿部天津地质矿产研究所,天津,300170; 地矿部天津地质矿产研究所,天津,300170; 地矿部天津地质矿产研究所,天津,300170 |
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| 基金项目： | 地矿部课题!9502011－02 |
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| 摘 要： | 本文根据甘肃敦煌地区广泛出露在太古宙TTG杂岩中的一套副变质岩系的岩石组合、典型矿物组合、变质相特征和岩石化学特征的分析,认为它们是一套中深变质的碎屑岩-泥质岩-泥灰岩-碳酸盐建造,其中夹有少量的变质基性火山岩.原岩形成于具有基性火山作用的活动大陆边缘滨海-浅海环境.经过太古宙的区域高角闪岩相变质作用,形成孔兹岩系.
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| 关 键 词： | 太古宙 孔兹岩系 敦煌地区 |
| 修稿时间： | 1997－12－09 |
THE CHARACTERISTICS OF ARCHEAN KHONDALITE SERIES IN DUNHUANG,GANSU PROVINCE |
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| Yu Haifeng, Mei Hualin, Li Quan. THE CHARACTERISTICS OF ARCHEAN KHONDALITE SERIES IN DUNHUANG,GANSU PROVINCE[J]. North China Geology, 1998, (1): 19-25. doi: 10.3969/j.issn.1672-4135.1998.01.003 |
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| Authors: | Yu Haifeng Mei Hualin Li Quan |
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| Affiliation: | Tannjin Insitute of Geology and Mineral Resources |
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| Abstract: | A parametamophic rock series widely exposed in Archean TTG complex inDunhuang area, Gansu Province is recognized of a formation of middle - high grademetamorphosed clastic rock - mudrock - mudstone - carbonate, with a little meta - basicvolcanite, through the analysis of lithological associations, typical mineral assemblages. thefeatures of metamorphic facies and the chemistry compositions. Its original rock is sedimented inthe environment of active epicontinent - seaforrd with basic volcanism, and become khondaliteseries through the Archean regional high - amphibolite facies metamorphism. |
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| Keywords: | Archean Khondalite series Dunhuang area |
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