Deep water sedimentary processes in the Enderby Basin (East Antarctic margin) during the Cenozoic
Huang, Xiaoxia3; Wu, Shiguo3; De Santis, Laura2; Wang, Guolong3; Hernandez-Molina, F. Javier1
刊名BASIN RESEARCH
2022-07-25
卷号34期号:0950-091X页码:1917– 1935
关键词Antarctic Bottom Water East Antarctica Enderby Basin sediment drifts sediment waves submarine channels
ISSN号0950-091X
DOI10.1111/bre.12690
通讯作者Huang, Xiaoxia
英文摘要

The thick sequence of mid-late Cenozoic sediments preserved within the Enderby Basin of the East Antarctica margin contains key information regarding glacial history and palaeo-oceanographic conditions during the last 34 My. The interplay between glacial processes and ocean circulation can be reconstructed from seismic stratigraphic studies. Here, interpretation of seismic sequences and geomorphology from an extensive 2D seismic dataset (similar to 75,000 km) are correlated with lithological data of the ODP site 1165 drilled on the continental rise, and used to assess the age and origin of the sediment, and the possible influence of oceanic currents on its distribution. Mapping of seismic units and facies reveals that, in addition to glacial sediments derived from the Antarctic mainland, the upper Cenozoic succession includes drift units with prograding sequences building out from the Mac. Robertson Land margin, west of the Prydz Bay. Three contourite drifts grew on the western side of submarine channels and large sediment wave fields suggest a mixed system of turbidity currents influenced by west-flowing bottom currents. The drifts are composed of four seismic units representing stages of onset (Lower Oligocene), main growth (Early-Middle Miocene), maintenance (Middle-Late Miocene) and burial (Pliocene). The internal geometry and reflection patterns of the drifts imply an intensified current activity from the Early to Middle Miocene. The results plausibly reflect that the formation of proto Antarctic Bottom Water (AABW) started around the Eocene-Oligocene boundary and intensified episodically from the early to middle Miocene.

资助项目National Neutral Science Foundation of China[41976233] ; Pioneer Hundred Talents Program[Y910091001] ; Key Research Program of Frontier Sciences[ZDBS--LY--7018]
WOS关键词CONTINENTAL RISE WEST ; ICE-SHEET DYNAMICS ; PRYDZ BAY ; SOUTHERN-OCEAN ; INDIAN-OCEAN ; MIDDLE MIOCENE ; WEDDELL SEA ; EVOLUTION ; PENINSULA ; CLIMATE
WOS研究方向Geology
语种英语
出版者WILEY
WOS记录号WOS:000830482500001
资助机构National Neutral Science Foundation of China ; Pioneer Hundred Talents Program ; Key Research Program of Frontier Sciences
内容类型期刊论文
版本出版稿
源URL[http://ir.idsse.ac.cn/handle/183446/9674]  
专题深海科学研究部_深海地球物理与资源研究室
通讯作者Huang, Xiaoxia
作者单位1.Univ London, Dept Earth Sci, Royal Holloway, Egham, Surrey, England
2.Natl Inst Oceanog & Appl Geophys OGS, Trieste, Italy
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
推荐引用方式
GB/T 7714
Huang, Xiaoxia,Wu, Shiguo,De Santis, Laura,et al. Deep water sedimentary processes in the Enderby Basin (East Antarctic margin) during the Cenozoic[J]. BASIN RESEARCH,2022,34(0950-091X):1917– 1935.
APA Huang, Xiaoxia,Wu, Shiguo,De Santis, Laura,Wang, Guolong,&Hernandez-Molina, F. Javier.(2022).Deep water sedimentary processes in the Enderby Basin (East Antarctic margin) during the Cenozoic.BASIN RESEARCH,34(0950-091X),1917– 1935.
MLA Huang, Xiaoxia,et al."Deep water sedimentary processes in the Enderby Basin (East Antarctic margin) during the Cenozoic".BASIN RESEARCH 34.0950-091X(2022):1917– 1935.
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace