| 香港的新构造断裂活动与天然山体滑坡关系的初步研究 |
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| 引用本文： | 李进华,邓丽君,王俊晖,丁原章.香港的新构造断裂活动与天然山体滑坡关系的初步研究[J].华南地震,2008,28(2):108-117. |
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| 作者姓名： | 李进华 邓丽君 王俊晖 丁原章 |
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| 作者单位： | 1. 香港特别行政区政府土木工程拓展署土力工程处,中国香港
2. 广东省地震局,广东,广州,510070 |
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| 摘 要： | 香港沙田河沥背地区西北向断裂的左旋错断构造运动，在断裂两分支之间造成转变挤压型地块抬升，形成一菱形地垒。表土层大致均匀分布在地垒及其两侧地区，并且没有被埘北向断裂错动。而表土层所覆盖的古台地亦没有经过明显剥蚀。待得到河沥背表土层及邻近黄竹洋村天然山体滑坡定年结果资料，即可以给出河沥背断裂最新错动年龄范围及断裂活动与区内天然山体滑坡事件的相互关系。
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| 关 键 词： | 新构造断裂活动 天然山体滑坡 香港 |
Preliminary Study of Neotectonic Fault Movement and Its Effect on Natural Terrain Landslides in Hong Kong |
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| LEE C.W.,TANG D.L.K.,WONG C.F.,DING Y.Z..Preliminary Study of Neotectonic Fault Movement and Its Effect on Natural Terrain Landslides in Hong Kong[J].South China Journal of Seismology,2008,28(2):108-117. |
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| Authors: | LEE CW TANG DLK WONG CF DING YZ |
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| Institution: | LEE C.W., TANG D.L.K., WONG C.F., DING Y.Z. (1. Geotechnical Engineering Office, Civil Engineering and Development Department, The Government of the Hong Kong Special A dministration Region, Chino; 2. Earthquake A dministration of Guangdong Province, Guangzhou 510070, China) |
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| Abstract: | A horst was formed within a compression sector between two subsidiary branches of a NW-trending left lateral strike-slip fault in the Ho Lek Pui area, Sha Tin, Hong Kong. Subsequent deposits on either side of the horst block are of uniform thickness and show no evidence for displacement by recent fault movement. The rhomb-shaped horst block appears not to have been substantially modified by erosion prior to deposition of the superficial deposits. Age data from samples recovered from the superficial deposits provide constraints on the timing of last fault movement. Comparison between these age data and those from a large-scale relict natural terrain landslide in the adjacent Wong Chuk Yeung area may help to establish a relationship between movement on the Ho Lek Pui fault and its effect on the surrounding natural terrain. |
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| Keywords: | Neotectonic fault movement Natural terrain landslide Hong Kong |
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