浅层地震勘探在巴塘断裂活断层填图中的应用

The Application of Shallow Seismic Exploration to the Mapping Active Faults of the Batang Fracture Zone

巴塘断裂活断层填图中,针对第四系覆盖层较厚,断层出露较差、地表形迹、地貌特征不明显的部位,采取浅层地震勘探方法探测。在上莫西村、松多村至竹巴龙村共布设7条测线,解译浅层地震数据可精确定位活断层位置,查明其几何学特征,工作区内巴塘断裂通过测线处的覆盖层厚度约10~100m,巴塘断裂北端并未止于上莫西村,有往北延伸的趋势。

Shallow seismic exploration method is applied to the mapping active faults of the Batang fracture zone in view of the thick Quaternary overburden,few outcrops and not obvious surface topography.Seven shallow seismic exploration lines are laid out from Upper Moxi village,Songdo village to Zhubalong village.The interpretation of the shallow seismic exploration data accurately locates the active faults and finds out their geometric characteristics,showing a tendency to extend northward of the Batang fault.