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本文从正反两方面论证,只有引入康滇菱形断块的南南东向移动,才能比较圆满地解释西南地区现代构造应力场的复杂图像和强震活动特征。强调必须注意板内断块的具有某种主动性质的相对运动。西南应力场自中生代以来基本上是继承的,华北直至西南日本的应力场在中、新生代之间发生了重大变化,它是亚洲另一个重大地质事件。提议只有同时注意两大地质事件(青藏高原隆起和华北应力场变化)才能比较全面地理解中国大陆现代构造运动。最后讨论了西南地区力源、应力场变动与地震活动的关系。
This paper proves both positive and negative. Only by introducing the south-south eastward movement of the Kang-Yunnan rhombic fault block can the complicated image of the modern tectonic stress field and the characteristics of strong earthquakes in the southwest region be interpreted satisfactorily. Emphasizing the importance of paying attention to the relative motion of some active nature of the intraplate fault. The Southwest stress field has basically inherited since the Mesozoic. The stress field in North China until the southwestern Japan has undergone major changes between Mesozoic and Cenozoic. It is another major geological event in Asia. It is suggested that only by paying attention to the two major geological events (the uplift of the Tibetan Plateau and the change of stress field in North China) can a more complete understanding of the modern tectonic movement in Mainland China be proposed. Finally, the relationship between the source rock and the stress field in the southwest of China and the earthquake activity is discussed.