用重力與地震資料探討南部山區之地下構造（II）

Quite high seismicity, active deformation, rapid uplift and mountain building are taking place in and around Taiwan. Despite of intense orogeny, it is interesting to note that the south-western segment of the Central Range exhibits a persistent aseismic area. In the past, few geophysical and geological observations of the south-western segment of the Central Range were reported due to extremely difficult accessibility. Therefore, the overall tectonic structure of the south-western segment of the Central Range remains obscure and the subject of wide debate. This lack of seismicity here must be an important parameter in the geodynamics of orogeny. To image 3-D subsurface structure, this proposal will deploy a local seismic network equipped with high-resolution seismic observed system. In addition, revised gravity data will be joined to obtain more reliable structure. The result will improve our understanding of tectonic structure of the south-western segment of the Central Range.