Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model
	Lu, Caili 2,3; Yao, Yongjian 1; Gong, Yuehua 1; Wu, Shiguo 2; Li, Xuejie 1
刊名	JOURNAL OF EARTH SCIENCE
	2012-10-01
卷号	23 期号:5 页码:731-743
关键词	deepwater canyon-channel bottom current turbidity current lateral migration South China Sea
ISSN号	1674-487X
通讯作者	Yao, YJ (reprint author), Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China.
英文摘要	Based on multi-beam bathymetric data and 2D high-resolution, multi-channel seismic profiles, combing ODP1148 drilling data, the morphology, internal sedimentary architecture, and evolution pattern of 17 deepwater canyons from the Middle Miocene to present are documented in the northern Baiyun sag (BS), Pearl River Mouth basin (PRMB), and northern South China Sea (SCS). There exist six seismic architectural elements in these canyons, including basal erosive surfaces (BES), thalweg deposits (TD), lateral migration packages (LMP), mass transport deposits (MTD), canyon margin deposits (CMD), and drape deposits (DD). According to the stratigraphical ages and geometrical features of these canyons, their formation and evolution processes are divided into three stages: (1) Middle Miocene scouring-filling, (2) Late Miocene lateral migration, and (3) Pliocene-Quaternary vertical overlay. An auto-cyclic progressive in the scouring-filling and vertical overlay; process of eroding and filling by turbidity currents results bottom currents are responsible for the remarkable asymmetry between the two flanks of canyons; and faults are inherent dynamic forces triggering these can yons. It is inferred that these canyons are caused by the double effects of turbidity and bottom currents under the control of faults as inherent dynamic forces.
学科主题	Geosciences, Multidisciplinary
收录类别	SCI
原文出处	10.1007/s12583-012-0280-3
语种	英语
WOS记录号	WOS:000309442600008
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/12497]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lu, Caili,Yao, Yongjian,Gong, Yuehua,et al. Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model[J]. JOURNAL OF EARTH SCIENCE,2012,23(5):731-743.
APA	Lu, Caili,Yao, Yongjian,Gong, Yuehua,Wu, Shiguo,&Li, Xuejie.(2012).Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model.JOURNAL OF EARTH SCIENCE,23(5),731-743.
MLA	Lu, Caili,et al."Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model".JOURNAL OF EARTH SCIENCE 23.5(2012):731-743.