| 新疆南天山库车坳陷晚第四纪以来地壳缩短速率的初步研究 |
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| 引用本文： | 吴传勇,沈军,陈建波,李军,向志勇,谢天,宋正娜,王翠.新疆南天山库车坳陷晚第四纪以来地壳缩短速率的初步研究[J].地震地质,2006,28(2):279-288. |
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| 作者姓名： | 吴传勇 沈军 陈建波 李军 向志勇 谢天 宋正娜 王翠 |
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| 作者单位： | 1. 新疆维吾尔自治区地震局,乌鲁木齐,830011
2. 新疆大学资源与环境学院,乌鲁木齐,830046 |
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| 基金项目： | 新疆科技攻关项目;中国地震局资助项目;科技部国际科技合作项目 |
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| 摘 要： | 库车坳陷是南天山中段新构造运动异常强烈的地区,发育4排近EW向展布的逆断裂-背斜带。通过野外实地考察及前人资料分析,认为该区晚第四纪以来的构造变形主要集中于喀桑托开逆断裂-背斜带、秋里塔格逆断裂-背斜带和最南缘的亚肯逆断裂-背斜带之上,而且不同构造带之间的变形方式存在较大差异。作者利用全站仪(total station)对上述构造带的变形地貌进行了精确测量,并结合年代学分析,得到喀桑托开逆断裂-背斜的地壳缩短速率为1·0~2·0mm/a,秋里塔格逆断裂-背斜带的地壳缩短速率为2·5~3·0mm/a,亚肯盲逆断裂-背斜的地壳缩短速率为1·5~2·0mm/a。晚第四纪以来,库车坳陷SN向总的地壳缩短速率不<5·0~7·0mm/a
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| 关 键 词： | 库车坳陷 晚第四纪 地壳缩短 南天山 |
| 文章编号： | 0253-4967（2006）02-0279-10 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2006-01-26 |
PRELIMINARY STUDY OF LATE QUATERNARY CRUSTAL SHORTENING RATE ALONG KUQA DEPRESSION IN SOUTH TIANSHAN, XINJIANG |
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| WU Chuan-yong,SHEN Jun,CHEN Jian-bo,LI Jun,XIANG Zhi-yong,XIE Tian,SONG Zheng-na,WANG Cui.PRELIMINARY STUDY OF LATE QUATERNARY CRUSTAL SHORTENING RATE ALONG KUQA DEPRESSION IN SOUTH TIANSHAN, XINJIANG[J].Seismology and Geology,2006,28(2):279-288. |
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| Authors: | WU Chuan-yong SHEN Jun CHEN Jian-bo LI Jun XIANG Zhi-yong XIE Tian SONG Zheng-na WANG Cui |
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| Affiliation: | 1 Earthquake Administration of Xinjiang Uygur Autonomous Region, Urumqi 830011, China;2 Resources and Environment Institute of Xinjiang University , Urumqi 830046, China |
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| Abstract: | The Kuqa depression is located in the middle segment of the southern Tianshan Mountains. There are four E-W extending rows of reverse fault and anticline zones in the depression. From the south Tianshan Mountains towards the Tarim basin, they are the mountain piedmont, the Kasangtuokai, the Qiulitag and the Yaken reverse fault and fold zones. After a month field working, we find the crustal shortening of the Kuqa depression in late Quaternary is almost caused by the Kasangtuokai, the Qiulitag and the Yaken |
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| Keywords: | Kuqa depression late Quaternary crustal shortening southern Tianshan |
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