Morphological characteristics in the area off eastern Taiwan Island and their tectonic implications

	Morphological characteristics in the area off eastern Taiwan Island and their tectonic implications
	Liu, BH ; Zheng, YP ; Wu, JL ; Han, GZ ; Zhang, DY
刊名	ACTA OCEANOLOGICA SINICA
	2004
卷号	23 期号:3 页码:449-461
关键词	Taiwan Island morphological characteristics tectonic implications
ISSN号	0253-505X
英文摘要	On the basis of bathymetric data and other geological and geophysical data obtained during the first survey conducted by Chinese Mainland in the area off eastern Taiwan Island from May to June in 2000, the morphological features of the region, the tectonic control to the seafloor topography and their tectonic implication are studied and discussed. The results have revealed that both the slope zone of the Ryukyu arc and the Ryukyu Trench present a typical morphotectonic characteristics controlled by the trench-arc system in the West Pacific Ocean. At the slope of eastern Taiwan Island the isobathic lines parallel to the coastline and distribute densely in nearly N-S direction and the slope gradient of topography is large. Such a unique feature is attributed to the collision of the Luzon arc and Eurasia continent. In the Huatung Basin, turbidity fans and submarine canyons are well developed, the formations of which are mainly related to the steep topography of the slope of the Luzon arc and the abundant supply of sediments. These submarine canyons are controlled by basement highs and strike-slip faults. On eastern side and western side of the Gagua Ridge, both the water depth and morphological features are different, but the basement of Gagua Ridge belongs to the Huatung Basin, The eastern side of the Gagua Ridge (123degrees12'E) corresponds to the boundary of two plates with different ages. In the West Philippine Basin, linear ridges and troughs in a NW trending are identified, which are dissected by a NE trending transform fault. According to the seafloor topography features, the direction of the transform fault and the magnetic anomaly lineations, the seafloor of this region was formed during 60similar to45 Ma B. P. when the West Philippine Basin was spreading along NE-SW relative to the present orientation.
WOS关键词	EVOLUTION ; BASIN ; SOUTH
WOS研究方向	Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000225321500008
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27257]
专题	自然资源部第一海洋研究所
通讯作者	Liu, BH
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.State Ocean Adm, Key Lab Marine Sedimentol & Environm Geol, Qingdao 2660061, Peoples R China
推荐引用方式 GB/T 7714	Liu, BH,Zheng, YP,Wu, JL,et al. Morphological characteristics in the area off eastern Taiwan Island and their tectonic implications[J]. ACTA OCEANOLOGICA SINICA,2004,23(3):449-461.
APA	Liu, BH,Zheng, YP,Wu, JL,Han, GZ,&Zhang, DY.(2004).Morphological characteristics in the area off eastern Taiwan Island and their tectonic implications.ACTA OCEANOLOGICA SINICA,23(3),449-461.
MLA	Liu, BH,et al."Morphological characteristics in the area off eastern Taiwan Island and their tectonic implications".ACTA OCEANOLOGICA SINICA 23.3(2004):449-461.