| 晋冀蒙高级区两期高压麻粒岩的地质特征及成因 |
| |
| 引用本文： | 钟长汀.晋冀蒙高级区两期高压麻粒岩的地质特征及成因[J].地质调查与研究,1999(2). |
| |
| 作者姓名： | 钟长汀 |
| |
| 作者单位： | 中国地质科学院天津地质矿产研究所!天津，300170 |
| |
| 基金项目： | 国家自然基金!49472141 |
| |
| 摘 要： | 晋冀蒙高级区存在两期高压麻粒岩，其分布、产状、时代、成因都不同。早期高压麻粒岩，沿宣化西葛峪、大东沟、怀安蔓菁沟南部、恒山白蟒石一带分布，呈透镜状产于钾长花岗岩中，形成时代约2400Ma，属岩浆包体。晚期高压麻粒岩，沿孔兹岩系和麻粒岩杂岩的接触带分布，呈透镜状、岩脉状产出，并和孔兹岩岩片、高温韧性剪切带、超基性岩一同构成具有“混杂岩”性质的构造-岩浆杂岩带，其时代为1800Ma左右。
|
| 关 键 词： | 晋冀蒙地区 高压麻粒岩 深源包体 深源侵入体 |
THE GEOLOGICAL FEATURES AND ORIGIN OF TWO-STAGE-HIGH-PRESSURE BASIC GRANULITE FROM THE SHANXI-HEBEI-INNER MONGOLIA TERRA IN NORTH CHINA CRATON |
| |
| Zhong Changting.THE GEOLOGICAL FEATURES AND ORIGIN OF TWO-STAGE-HIGH-PRESSURE BASIC GRANULITE FROM THE SHANXI-HEBEI-INNER MONGOLIA TERRA IN NORTH CHINA CRATON[J].Geological Survey and Research,1999(2). |
| |
| Authors: | Zhong Changting |
| |
| Abstract: | In the Jin-Ji-Meng (Shanxi-Hebei-Inner Mongolia ) high-grade terrain, NorthChina craton, two-stage- high- pressure granulite can be dist inguished from their distribut ion,occurrence and ages. The earlier distribute along Xigeyu - Dadonguo-south Manjinggou-Baimangshi, thcy occurre as xenolith in the potassium granite, the isotoic ages are about 2400Ma. Th later distribute along Paol iang- Huangt uy8Ch Manj inguo. Thcy occurre as lens or dikesalong the conact belt between Khondalite and TTG gness, the isotopic ages show they intrudedat about 1 800 Mi when the collisdri of Ordos continen with Easter Heibei coninen occurred. |
| |
| Keywords: | Shanxi-Hebei-Inner Mongolia area high-pressure basic granulite xenolith plutonic intrusion |
| 本文献已被 CNKI 等数据库收录！ |
