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| 恒山中东部灰色片麻岩剪切变形初探 | |
| 引用本文： | 李好斌,温长顺,杨俊才.恒山中东部灰色片麻岩剪切变形初探[J].地质通报,2007,26(2):190-199. |
| 作者姓名： | 李好斌 温长顺 杨俊才 |
| 作者单位： | 1. 中国地质大学地球科学与资源学院,北京,100083;山西省第三地质工程勘察院,山西,晋中,030600 2. 中国地质大学地球科学与资源学院,北京,100083 3. 山西省地质调查院,山西,晋中,030600 |
| 基金项目： | 山西恒山王庄堡测区（1992）、荆庄测区（1994）等1：5万区域地质调查项目部分成果.致谢：本文资料主要来源于1：5万、1：25万区域地质调查成果.成文过程中受到中国地质大学（北京）构造教研室老师们的启发,得到苗培森（文中图2-f.4-d、e和6-b为野外验收期间由苗培森拍摄提供）、赵贞祥、魏荣珠、刘成如等高级工程师的帮助,孟兆国、李营辉高级工程师提出了许多宝贵的意见,在此一并表示衷心的感谢. |
| 摘 要： | 恒山高级变质岩区是中国早前寒武纪变质岩研究的经典地区之一。通过对区内露头尺度的构造研究,识别出恒山灰色片麻岩在新太古代晚期发生了2期剪切变形,2期剪切变形形成的构造形迹在空间分布、岩石的变形习性、变形组构等方面均存在差异。重点分析了早期构造变形形成的各种构造形迹的特点,认为恒山中东部的灰色片麻岩早期形成的自北而南由网结状分布的强变形带向均匀带状展布的强变形带的变化是构造变形分解的结果,代表了岩石在中深构造层递进变形的过程,具有时空演变的意义。这一过程是由均匀的岩石、各向异性不均匀的岩石向强烈定向的岩石转变的过程。 |
| 关 键 词： | 恒山 灰色片麻岩 剪切变形 条带构造 旋转斑体 |
| 文章编号： | 1671-2552（2007）02-0190-10 |
| 收稿时间： | 2006-06-10 |
| 修稿时间： | 2006-10-12 |
Shearing deformation of gray gneisses in the east-central part of Hengshan Mountain, Shanxi, China |
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| LI Hao-bin,WEN Chang-shun,YANG Jun-cai.Shearing deformation of gray gneisses in the east-central part of Hengshan Mountain, Shanxi, China[J].Geologcal Bulletin OF China,2007,26(2):190-199. | |
| Authors: | LI Hao-bin WEN Chang-shun YANG Jun-cai |
| Institution: | 1. School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China; 2. Shanxi No. 3 Institute of Geological Engineering Exploration, Jinzhong 030600, Shanxi, China; 3. Shanxi Institute of Geological Survey, Jinzhong 030600, Shanxi, China |
| Abstract: | The Hengshan high-grade metamorphic terrain is one of the typical areas for the study of Early Precambrian metamorphic rocks in China. Through outcrop-scale tectonic analysis of the area, two stages of Late Neoarchean shearing deformation of the Hengshan gray gneisses have been recognized. The tectonic features formed in the two stages of shearing deformation show differences in their spatial distribution and deformation behaviors and fabrics of rocks. The focus of the paper is on the tectonic features formed in the early-stage tectonic deformation. It is thought that the early-stage change of the Hengshan gray gneisses from the nonuniform netted strong shearing deformation zone to uniform striped strong shearing deformation zone from north to south is the result of structural deformation decomposition, which represents a process of progressive deformation of rocks at the mid-deep tectonic levels and has the significance of temporal-spatial evolution. This process is one of transition from uniform rocks and anisotropic, nonuniform rocks to strongly oriented rocks. |
| Keywords: | Hengshan Mountain gray gneiss shearing deformation striped structure rotational body |
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