摘要
本文在前人工作基础上,进一步对华南沿海地区进行了地面地质调查和显微构造研究,从而对华南沿海的深圳-五华断裂带,吴川-四会断裂带,合浦-北流断裂带和钦州-灵山断裂带的形态参数、性质、活动期次、活动方式及其变换等进行了比较构造研究,并对某些断裂的近期活动的幅度和速率作了概略的估算。结果表明,在一般情况下,断裂的规模越大,它们的活动性越强。但是,对于同一条断裂带,由于边界条件的差异。沿带的活动强度是不一致的。这种差异还导致各断裂带的活动强度和活动方式、期次在时间上的不同步。至于破坏性地震的发生。除了它们在断裂带上所处的特定的构造部位外,介质条件与其密切相关的变形特征,都是决定性的因素。
A comparative structural study has been conducted on the morphological parameters, nature, phases of activity, modes of activity and their transformation of the Shenzhen-Wuhua fault zone, the Wuchuau-Sihui fault zone, the Hepu-Beiliu fault zone and the Qinzhou-Lingshan fault zone along the coast of South China by means of ground geological investigations and rnicrostructural study. The results show that in general cases the larger the scale of the faults, the stronger their activity would be. But for the same fault zone, the activity strengths along the zone were not consistent owing to the difference in boundary conditions. This difference also led to nonsynchronism of the strength and modes of activity and phases of various fault zones. The decisive factors responsible for the generation of destructive earthquakes include the conditions of media and the deformation features closely related to them in addition to the specific structural sites of the earthquakes in the fault zones.
出处
《地质论评》
CAS
CSCD
北大核心
1991年第1期12-23,共12页
Geological Review
