中国现今区域构造应力场与地壳运动趋势分析
AN ANALYSIS OF PRESENT-DAY REGIONAL TECTONIC STRESS FIELD AND CRUSTAL MOVEMENT TREND IN CHINA
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摘要: 本文对中国现今地壳形变场、断层位移场、地应力场、地质灾害场、地壳深部结构构造等分别研究和分区。首次较全面地论述了中国现今区域构造应力场的主要特征,讨论了中国现今地壳运动问题。对中国地壳运动的某些过程、时空发展演化及运动规律的新认识,为中国地壳运动理论补充了现今构造应力场资料,同时也为国民经济规划、减灾防灾提供了依据。Abstract: Tectonic stress field is here extended to cover, in addition, crustal defromation field, fault displacement field, deep crustal structures, as well as the factors that may have some influence on the stress field such as structural conditions, geophysical and geochemical conditions and properties of the crustal materials.All these are so closely interrelated that they form a system giving different responses to a crustal movement. Only an integrated, systematic analysis of the tectonic stress field can the trend of the present-day crustal movement be brought to light.Otherwise, what we may have achieved will be only partial expression of the movement.This paper approaches the problem in two steps:a respective analysis and zonation of the various fields mentioned above is first made which is followed by a discussion of the crustal movement trend in China.The results add some new data and knowledge to the present-day crustal movement in China, which may prove useful for the planning and construction of national economy and for disaster reduction and prevention.
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