某工程厂址近区域断裂活动性研究
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摘要
在湖北省通山大畈某工程可行性研究阶段,按照断层选取原则在厂址近区域范围选取了相应数量的断层,根据新构造运动特征分析、野外地质追踪调查、航卫片解译、断层物质测年分析等,对每一条所选断层的性状、活动性进行了深入研究,结果表明:所有断层活动的上限不晚于311±30 Ka;根据地震资料分析,研究区域内断层不属于晚第四纪以来的活动断层。
In the feasibility study for the project,some faults were selected for research in the close region.In order to identify the scale,property and activity of every fault,this paper made a detailed analysis based on the interpretation of the aerial photos,the characteristics of neotectonic movement in close region and the field investigation.With geodating analysis,the paper concluded that all faults completely ceased after 311±30Ka.Additional seismic analysis confirmed that all selected faults have no longer been active since Late Quaternary.
引文
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