TECTONIC GEOMORPHOLOGY AND FAULTS QUATERNARY ACTIVITY IN THE WESTERN COAST OF TAIWAN STRAIT

Tectonic landform is directly formed by earth's crust neotectonic movement with a dynamic and active's topography or terrain. The tectonic geomorphology's evolution which is under fault activity, can be used as an intuitive evidence. This article works through remote sensing interpretation, geological survey and multi-prospecting etc.,studies for tectonic geomorphology's characteristic and quaternary activity at Change-Nan'ao fault zone. The results show: In the north-east and north-west survey area, two of the faults controls geomorphic development in this area, and form a mesh morphological pattern. The fault zone's linear image, has a clear characteristic and zonation. From this point of view, a variety of microtopography development has referential meaning to the fault zone and quaternary activity. It also means a part of fault zone has a certain activity in quaternary era. The activity's direction has two styles, which is perpendicular and horizontal. The fault zone's activity in this area has a certain difference, from northwest to southeast, form inland to coastal, the reactivity is progressively strengthen. The main activities of the fault zone is before in late Pleistocene, but they also have some indications in Holocene at partial section.