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 |
DOI | 10.1111/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 |
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。
修改评论