Holocene marine terrace development constraints on a creeping fault on the Coastal Range, Taiwan
Abstract
Holocene uplift of the Coastal Range is recorded a sequence of five Holocene marine terraces extending 150 km-long stretch of coast along the upthrow block of the Longitudinal Valley Fault. Tectonic deformation strongly influences geomorphic features of Holocene staircase marine terrace along the creeping fault (the Shihshang and Lichi faults) on the southern Coastal Range. Emergent marine terraces are often associated with a widely and extensively wave-cut platform and lower terrace riser of approximately 200-600 m wide and generally less than 3 m high, respectively. Long-term uplift rates calculated from marine terrace sequence along the creeping segment are up to about 4-7 mm/yr and even locally up to 10 mm/yr which is similar with GPS observations of interseismic rate about 5-10 mm/yr. Therefore, emergent marine terraces appear to occur as steady uplift during the interseismic period, which might be applicable to have moderate earthquakes associated with large amounts of interseismic deformation.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFM.T23A0335C
- Keywords:
-
- 7230 Seismicity and tectonics;
- SEISMOLOGYDE: 8107 Continental neotectonics;
- TECTONOPHYSICSDE: 8175 Tectonics and landscape evolution;
- TECTONOPHYSICSDE: 8177 Tectonics and climatic interactions;
- TECTONOPHYSICS