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珠江三角洲断裂构造最新活动性研究 总被引：11，自引：6，他引：11
根据在珠江三角洲及其周围地区测得的热释光年龄和第四系沉积物的分布等资料，分析讨论了断裂的最新活动性。自晚更新世以来，陈三角洲外围几条主要的北东向断裂的局部地段以外，基本上处于比较稳定的状态。晚更新世一全新世早期有过明显活动的断裂有狮子洋东西两侧的北西向断裂，近南北向的崖门断裂和北东向的古劳－广州断裂。近东西向的瘦狗岭断裂新世亦有过活动。 相似文献
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上海两条隐伏第四纪断裂的研究 总被引：3，自引：0，他引：3
以浅层地震勘探为主要方法 ,研究了上海两条主要断裂 (太仓 -奉贤断裂和枫泾 -川沙断裂 )的第四纪活动性。结果表明 ,断裂的最新活动一般在早更新世 -中更新世 ,个别区段的活动可延续至晚更新世 相似文献
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台湾海峡及两岸发震断裂的对比研究 总被引：1，自引：0，他引：1
对比研究了台湾海峡西岸福建沿海北东向龙海角美－白云山断裂、台湾海峡北东向平潭牛山岛－东山兄弟屿断裂和台湾海峡东岸台湾岛北东向中央山脉等断裂晚更新世以来的活动性及其与地震的关系。结果表明，作为欧亚大陆板块与太平洋菲律宾海板块的边界断裂之一的中央山脉断裂第四纪以来乃至现今仍具有强烈的活动，因而发生了4次M≥7地震；作为台湾海峡沉降带与福建武夷－戴云复式生起的边界断裂的平潭牛山岛－东山兄弟屿断裂全新世晚期（2500a以来）仍具有强烈的活动，从而发生了3次M≥7地震；作为北东向长乐－诏安断裂带西界断裂组成部分的龙海角美－白云山断裂晚更新世期间具有强烈的活动，因而发生了5次M＝5－6 1/2地震。 相似文献
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香港地区断裂构造的新活动性 总被引：1，自引：0，他引：1
香港地区主要分布有北东东－近东西、北东和北西向三维断裂。北东向断裂分布全区，燕山期有过强烈活动，第四纪早－中期仍有过活动，以后的活动性不明显。其余两组构造虽然具有不同的发展历史，但在新构造运动中为一组共轭构造。在晚更新世（距今９－１１万年）仍有明显活动全新世以来活动性相对较弱，全新世滑动速度为０．６－０．９ｍｍ／ａ 相似文献
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本文根据野外地质调查资料和２９个年代测定数据,讨论了普兰店－瓦房店地区１３条断裂的展布特征和活动性．指出：金州断裂、普兰店湾断裂和曲家屯断裂属于晚更新世活动断裂,其余１０条断裂为早、中更新世活动断裂或前第四纪断裂 相似文献
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M. N. French R. L. Bras W. F. Krajewski 《Stochastic Environmental Research and Risk Assessment (SERRA)》1992,6(1):27-45
A procedure for short-term rainfall forecasting in real-time is developed and a study of the role of sampling on forecast ability is conducted. Ground level rainfall fields are forecasted using a stochastic space-time rainfall model in state-space form. Updating of the rainfall field in real-time is accomplished using a distributed parameter Kalman filter to optimally combine measurement information and forecast model estimates. The influence of sampling density on forecast accuracy is evaluated using a series of a simulated rainfall events generated with the same stochastic rainfall model. Sampling was conducted at five different network spatial densities. The results quantify the influence of sampling network density on real-time rainfall field forecasting. Statistical analyses of the rainfall field residuals illustrate improvement in one hour lead time forecasts at higher measurement densities. 相似文献
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《地震工程与工程振动(英文版)》2014,(4)
正This journal is established by the Institute of Engineering Mechanics(IEM),China Earthquake Administration,to promote scientific exchange between Chinese and foreign scientists and engineers so as to improve the theory and practice of earthquake hazards mitigation,preparedness,and recovery.To accomplish this purpose,the journal aims to attract a balanced number of papers between Chinese and 相似文献
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George W. Housner 《地震工程与工程振动(英文版)》2008,7(2):I0001-I0001
Destructive earthquakes have caused great damage in China and the United States and collapsing buildings havecaused many deaths and injuries. The field of earthquake engineering studies earthquake hazards, the occurrence ofearthquakes of various magnitudes, the nature of the ground shaking during an earthquake, the vibration of structuresduring earthquakes, the strengthening of existing structures and the design of new structures to be earthquake resistant,and finally, how to cope with earthquake damage and restore a city to normal functioning. Such efforts are in progressin both countries, but unfortunately, the language barrier interferes with the free flow of information between China andthe Untied States. It would be mutually beneficial if some means could be developed to promote the exchangeof information across the Pacific Ocean. This new journal has been established for this purpose and its success willbe an important step in promoting earthquake engineering in China and the United States. 相似文献
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《国际泥沙研究》2014,(4)
正President:Giampaolo Di Silvio,Italy Vice Presidents:Ulrich C.E.Zanke,Germany Zhao-yin Wang,China The World Association for Sedimentation and Erosion Research(WASER),inaugurated on Oct.19,2004,is an independent non-governmental,non-profit organization.The mission of WASER is to promote international co-operation on the study 相似文献
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JianCheng Shi 《中国科学:地球科学(英文版)》2014,57(10):2281-2282
正Global Change includes climate change and other environmental changes caused by the joint interaction among various layers of Earth. From the positive side, global change provides new opportunities to human and other living forms on Earth. In the meantime, it creates tremendous challenges and negative impact. At present, the negative impacts have reached all primary processes of the global ecosystem and every aspect of human society, especially causing degradation of the ecosystem. For instance, intensive deforestation causes decline of biodiversity; global warming causes sea level rise and increases 相似文献