Formation processes and evolution of Holocene sediments in the Yangtze offshore area: A review and new interpretation on the response to sea-level rise and deltaic progradation

doi:10.1016/j.quaint.2018.05.031

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋地质与地球物理研究室

	Formation processes and evolution of Holocene sediments in the Yangtze offshore area: A review and new interpretation on the response to sea-level rise and deltaic progradation
	Xu, Taoyu 1,2; Shi, Xuefa 1,2; Liu, Shengfa 1,2; Qiao, Shuqing 1,2; Wang, Guoqing 3; Wang, Xin 4; Yao, Zhengquan 1,2; Yang, Gang 1,2; Fang, Xisheng 1,2; Li, Xiaoyan 1,2
刊名	QUATERNARY INTERNATIONAL
	2018-10-10
卷号	490 页码:33-42
关键词	Yangtze estuary to offshore region Holocene sedimentary evolution Paleo-Yangtze estuary Delta development Erosional mud ridges Fluid mudflow
ISSN号	1040-6182
DOI	10.1016/j.quaint.2018.05.031
英文摘要	Seismic profiles integrated with borehole cores from offshore of the Yangtze River Delta characterize three distinctive Holocene deposition units in correspondence to estuarine, shallow marine and prodelta facies respectively (Units I to III). Sedimentary processes and evolution of three units in response to sea-level rise and Yangtze delta development was studied. Estuarine facies occurred as a cluster of mud ridges (unit I) was considered to be formed during the later stage of the period similar to 10-8 cal ka BP with the prevalence of tidal erosion processes. At the same time however, the area south of the ridge field experienced rapid deposition, possibly due to shelter effects of the Zhoushan Archipelago. Unit., characterized by homogeneous mud composition, rapid accumulation rates and a seaward dipping structure, indicated a gravity flow deposition most likely related to the wave and/or tidal current induced fluid mudflows during the period of similar to 8-5 cal ka BP. Intrusion of a mud diapir during similar to 5-3 cal ka BP related to gravity subsidence localized near the river mouth, lead to deformation of unit.. During the similar to 3 ka to present, the delta advanced to the study area, depositing subaqueous clinoform (unit.). Meanwhile, erosional processes dominated by tidal currents were promoted by the southeastward progradation of the delta. Sediments deposited in the north of the area were transformed into tidal sand ridges. We predict that the delta will likely reduce in area with a further progradation in the recent future.
资助项目	Coastal investigation and research project of China[908-02-02-05]
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000441524200004
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/2780]
专题	业务部门_海洋地质与地球物理研究室
作者单位	1.SOA, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China; 3.China Univ Geosci Wuhan, Sch Earth Sci, Wuhan 430074, Hubei, Peoples R China; 4.Ludong Univ, Inst Geog & Planning, Yantai 264025, Peoples R China
推荐引用方式 GB/T 7714	Xu, Taoyu,Shi, Xuefa,Liu, Shengfa,et al. Formation processes and evolution of Holocene sediments in the Yangtze offshore area: A review and new interpretation on the response to sea-level rise and deltaic progradation[J]. QUATERNARY INTERNATIONAL,2018,490:33-42.
APA	Xu, Taoyu.,Shi, Xuefa.,Liu, Shengfa.,Qiao, Shuqing.,Wang, Guoqing.,...&Wu, Yonghua.(2018).Formation processes and evolution of Holocene sediments in the Yangtze offshore area: A review and new interpretation on the response to sea-level rise and deltaic progradation.QUATERNARY INTERNATIONAL,490,33-42.
MLA	Xu, Taoyu,et al."Formation processes and evolution of Holocene sediments in the Yangtze offshore area: A review and new interpretation on the response to sea-level rise and deltaic progradation".QUATERNARY INTERNATIONAL 490(2018):33-42.