| 山西高原六棱山北麓断裂晚第四纪运动学特征初步研究 |
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| 引用本文： | 邓起东,米仓伸之.山西高原六棱山北麓断裂晚第四纪运动学特征初步研究[J].地震地质,1994,16(4):339-343. |
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| 作者姓名： | 邓起东 米仓伸之 |
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| 作者单位： | 国家地震局地质研究所，日本东京大学理学部地理学，国家地震局地质研究所，日本爱知县立大学地球科学实验室，中国科学院地质研究所，富山大学地质系，山西省地 |
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| 基金项目： | 中国科学院地质研究所、国家地震局地质研究所和日本文部省的联合资助 |
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| 摘 要： | 六棱山北麓断裂是山西地堑系北端张性构造区中的一条控制性断裂，总体走向北东东、倾向北北西，是一条至今仍在活动的倾滑正断裂，控制阳原盆地的形成和发展。在１９９３年和１９９４年的中日合作研究中，我们对断裂分段特征进行了研究，并用Ａｕｔｏ－ｌｅｖｅｌ仪器对这一条断裂晚第四纪不同时期的断错地貌面的位错量进行了测量，对这些地貌面的年龄进行了测定，得到该断裂带晚更新世晚期至全新世时期的平均垂直滑动速率为０．４３～０．７５ｍｍ／ａ。关键词
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| 关 键 词： | 山西高原 六棱山北麓断裂 地貌面 滑动速率 |
STUDY ON THE LATE QUATERNARY KINEMATICS OF THE NORTHERNPN PIEDMONT FAULT OF THE LIULENG MOUNTAIN |
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| Deng Qidong, Yonekura Nobuyuki.STUDY ON THE LATE QUATERNARY KINEMATICS OF THE NORTHERNPN PIEDMONT FAULT OF THE LIULENG MOUNTAIN[J].Seismology and Geology,1994,16(4):339-343. |
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| Authors: | Deng Qidong Yonekura Nobuyuki |
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| Abstract: | The northern piedmont fault of the Liuleng Mountain in the extentional region of the north-ern end of Shanxi graben system lies along the southern edge of Yangyuan basin and controls theorigin and development of the basin, It is a dip-slip normal fault, NEE-trending and N-dipping.Two moderate and large earthquake swarms (Ms=6.1, Ms=5.8) successively occurried alongthe fault in 1989 and 1991.The fault consists of a marginal faul of the basin (F_1)and a newly formed fault（F_2） cuttingthe late Pleistocene to Holocene alluvial deposits within the basin. The F_1 and F_2 faults form astepped fault zone along the northern piedmont and joint together into the western segment. Thefault activity is characterized by inheritant displacements. It cuts stream terraces of different agesand piedmont loess terraces, causing two basalt eruptions (K-Ar age of the basalt and TL age ofits underlying baked bed is 1．71±0．41Ma， 18．29±1．39～19．7±1．54×104a B.P. respective-ly). Later activity along the fault off |
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| Keywords: | :Shanxi plateau Northern Liulengshan piedmont fault Geomorphic surface Slip rate |
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