Seismic geomorphology and main controls of deep-water gravity flow sedimentary process on the slope of the northern South China Sea

作     者：LI Lei WANG YingMin XU Qiang ZHAO JingZhou LI Dong 

作者机构：School of Petroleum ResourcesXi'an Shiyou UniversityXi'an 710065China College of GeosciencesChina University of PetroleumBeijing 102249China CNOOC Research InstituteBeijing 100027China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2012年第55卷第10期

页      面：747-757页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 0709[理学-地质学] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：supported by National Basic Research Program of China (Grant No. 2009CB219407) National Natural Science Foundation of China (Grant No. 40972077) 

主　　题：seismic geomorphology deep water gravity flow sedimentary process South China Sea 

摘      要：The Quaternary continental slope of the Baiyun Sag in northern South China Sea is characterized by a complex topography and abundant gravity flow ***-resolution 3-D seismic data in this area allow for a detailed study of the seismic geomorphology and deep-water gravity flow depositional *** Quaternary continental slope in the northern South China Sea is an above-graded *** intraslope basin lies within the above-grade continental ***,erosion,and deposition processes tend to develop a gentle topography and consequently a graded *** upper continental slope,which is above the slope equilibrium profile,is dominated by erosion and ***,slumps and erosional channels are developed within this continental *** intraslope basin is located below the slope equilibrium profile and is potential accommodation space where sediments transported by gravity flows could be deposited,forming lobe *** the influence of gravity flow supply,gravity flow duration,continental slope topography,equilibrium profile,and accommodation,a slump-erosional channel-lobe depositional system is developed in the Quaternary continental slope in the Baiyun *** deep-water gravity flow depositional process and the distribution of gravity flow sediments are greatly influenced by the continental slope topography,while the continental slope topography at the same time is reshaped by deep-water gravity flow depositional process and its *** study of the interplay between the continental slope and gravity flow is helpful in predicting the distribution of the deep-water gravity flow sediments and the variation of sediment quality.