| 甘肃敦煌地区太古宙孔兹岩系特征 |
| |
| 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].地质调查与研究,1998,21(1):19-25. |
| |
| 作者姓名： | 于海峰 梅华林 李铨 |
| |
| 作者单位： | 地矿部天津地质矿产研究所,天津,300170 |
| |
| 基金项目： | 地矿部课题!9502011－02 |
| |
| 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。
|
| 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 |
| |
| Yu Haifeng,Mei Hualin,Li Quan.THE CHARACTERISTICS OF ARCHEAN KHONDALITE SERIES IN DUNHUANG,GANSU PROVINCE[J].Geological Survey and Research,1998,21(1):19-25. |
| |
| Authors: | Yu Haifeng Mei Hualin Li Quan |
| |
| Institution: | Tannjin Insitute of Geology and Mineral Resources |
| |
| 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. |
| |
| Keywords: | Archean Khondalite series Dunhuang area |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
