气候变化领域集成服务门户(CCPortal): New insights into Holocene marine terrace development caused by seismic and aseismic faulting in the Coastal Range; eastern Taiwan

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DOI	10.1016/j.quascirev.2020.106369
	New insights into Holocene marine terrace development caused by seismic and aseismic faulting in the Coastal Range; eastern Taiwan
	Chen W.-S.; Yang C.-Y.; Chen S.-T.; Huang Y.-C.
发表日期	2020
ISSN	0277-3791
卷号	240
英文摘要	The Coastal Range in eastern Taiwan, which has resulted from arc-continent collisions, involves well-developed Holocene uplifted marine terraces along a 140-km long stretch of the coast. This is the first study that unraveled the aseismic generation of marine terraces associated with coseismic uplift along the creeping fault. We organized DEMs/LiDAR mapping and field surveys to obtain detailed and systematic measurements of the inner and outer edges and wave-cut platform elevations along thirty-three stream profile transects, allowing us to locate the bedrock profile. Spatial and temporal variations in the 14C age are characterized by an offlapping built feature of significant seaward younging trend of ages across the marine terrace, caused by aseismic and coseismic uplift. Thus, heights of the bedrock riser and platform are caused by coseismic (large earthquake) and aseismic plus moderate coseismic vertical deformations during a large earthquake cycle, respectively. This indicates that each terrace duration and paleoshoreline ages can be used to infer the recurrence interval and the timing of large earthquake events, respectively. Results of the age of the paleoshoreline indicate six paleoseismic events at ∼8500, ∼6300, ∼4800, ∼3400, ∼1700, and ∼700 yr BP. This implies that the Chihshang creeping Fault could be capable of producing large earthquakes (greater than M7) at millennial time scales associated with larger coseismic deformations. The creep faulting associated with seismic and aseismic uplift is a dominant process constraining the Holocene marine terrace evolution. © 2020 Elsevier Ltd
英文关键词	Coastal geomorphology; Coseismic and aseismic deformations; Creeping fault; Holocene; Marine terrace; Recurrence interval; Sea-level changes; Uplift rate
语种	英语
scopus关键词	Deformation; Faulting; Arc-continent collision; Co-seismic uplifts; Coseismic deformation; Dominant process; Large earthquakes; Recurrence intervals; Spatial and temporal variation; Vertical deformation; Earthquakes; creep; digital elevation model; faulting; Holocene; lidar; paleoseismicity; recurrence interval; spatiotemporal analysis; terrace; wave-cut platform; Chihshang; Coastal Range [Taiwan]; Taiwan
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151434
作者单位	Department of Geosciences, National Taiwan University, Taipei, Taiwan; National Science and Technology Center for Disaster Reduction, Taipei, Taiwan; CPC Corporation, Taiwan
推荐引用方式 GB/T 7714	Chen W.-S.,Yang C.-Y.,Chen S.-T.,et al. New insights into Holocene marine terrace development caused by seismic and aseismic faulting in the Coastal Range; eastern Taiwan[J],2020,240.
APA	Chen W.-S.,Yang C.-Y.,Chen S.-T.,&Huang Y.-C..(2020).New insights into Holocene marine terrace development caused by seismic and aseismic faulting in the Coastal Range; eastern Taiwan.Quaternary Science Reviews,240.
MLA	Chen W.-S.,et al."New insights into Holocene marine terrace development caused by seismic and aseismic faulting in the Coastal Range; eastern Taiwan".Quaternary Science Reviews 240(2020).