| 北京云蒙山大水峪韧性剪切带糜棱岩的变形温度 |
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| 引用本文： | 张慧,王娟,彭涛,范文寿,陈艺超,侯泉林,吴春明.北京云蒙山大水峪韧性剪切带糜棱岩的变形温度[J].岩石学报,2018,34(6):1801-1812. |
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| 作者姓名： | 张慧 王娟 彭涛 范文寿 陈艺超 侯泉林 吴春明 |
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| 作者单位： | 中国科学院大学地球与行星科学学院;合肥工业大学资源与环境工程学院 |
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| 基金项目： | 本文受国家重点研发计划"深地资源勘查开采"重点专项（2016YFC0600401）资助. |
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| 摘 要： | 横穿北京云蒙山东部的白垩纪大水峪韧性剪切带的云蒙峡剖面中,主体岩石为花岗质-闪长质糜棱岩,普遍发生了脆性-韧性变形。糜棱岩中的残斑为斜长石、钾长石,基质为斜长石、钾长石、石英、角闪石、黑云母。糜棱岩中一类斜长石基质与斜长石残斑化学成分基本相同,是斜长石残斑机械破碎的产物,未经历动态重结晶。另一类斜长石基质的An值明显高于斜长石残斑的An值,表明此类斜长石基质经历了动态重结晶作用。糜棱岩中钾长石基质的Or值略大于钾长石残斑Or值。本文根据糜棱岩中经历动态重结晶的斜长石基质和钾长石基质,采用二长石温度计估算的糜棱岩韧性变形温度条件为450～630℃。发现随着背离云蒙山岩基的方向,自西而东,大水峪糜棱岩带的韧性变形温度条件有明显的递降现象。
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| 关 键 词： | 糜棱岩 云蒙山 变形温度 大水峪韧性剪切带 |
| 收稿时间： | 2018/1/1 0:00:00 |
| 修稿时间： | 2018/3/19 0:00:00 |
Temperature conditions of mylonitization of the Dashuiyu ductile shear zone, Mt. Yunmeng, Beijing |
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| ZHANG Hui,WANG Juan,PENG Tao,PHAM Van Tho,CHEN YiChao,HOU QuanLin and WU ChunMing.Temperature conditions of mylonitization of the Dashuiyu ductile shear zone, Mt. Yunmeng, Beijing[J].Acta Petrologica Sinica,2018,34(6):1801-1812. |
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| Authors: | ZHANG Hui WANG Juan PENG Tao PHAM Van Tho CHEN YiChao HOU QuanLin and WU ChunMing |
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| Institution: | College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China,College of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China and College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | |
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| Keywords: | mylonite Mt Yunmeng deformation temperature Dashuiyu ductile shear zone |
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