The role of ice-sheet dynamics in the Miocene-Pliocene depositional systems of the Ross Sea, Antarctica
文献类型：期刊论文
| 作者 | Wang, Guolong1,2 ; Huang, Xiaoxia1; Liu, Shan3; Wu, Shiguo1; Ma, Zunqing4
|
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2024-08-15 |
| 卷号 | 648页码:17 |
| 关键词 | Ross Sea Ice sheet Sedimentary characteristic Mass transport deposit (MTD) Mixed depositional system |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2024.112253 |
| 英文摘要 | The dynamics of the Antarctic ice sheet (AIS) have profound implications for the evolution of the Antarctic continental margin, global ocean currents, and climate changes. Marine sediments from the Antarctic continental margins recorded the history of the advance and retreat of the AIS. In this study, we present an integrated analysis of the sedimentary characteristics of the Early Miocene to Late Miocene of the Ross Sea by using 2D seismic reflection data and cores from International Ocean Discovery Program (IODP) Expedition 374 Sites U1521, U1522, and U1524. The characteristics of the seismic facies and sediments show that the expansion and grounding of the ice sheets across the continental shelf significantly influenced the depositional processes, leading to increased glacial erosion, the formation of prograding wedges, mass transport deposits (MTDs), and mixed (turbidite-contourite) depositional systems since the Early Miocene. The seaward migration of the continental shelf edge and the steepening of the continental slope were mainly influenced by the glaciation of extreme expansion of the AIS. Marked increases in the prograding wedge and MTD are associated with extensive sediment reworking and deposition at the grounding zones and along the continental slope as a result of ice sheet expansion. The development of the mixed (turbidite-contourite) depositional systems was the result of extensive sediment reworking and deposition by gravity flows and bottom currents on the continental slope and the rise. This research provides new insights into the complexity of the ice sheet and the sensibility of marginal sediments in responding to the past climate changes in Antarctica. |
| WOS关键词 | BOTTOM WATER FORMATION ; DEBRIS-FLOW DEPOSITS ; SEISMIC STRATIGRAPHY ; SHELF PROGRADATION ; CONTINENTAL-MARGIN ; WEDDELL SEA ; PRYDZ BAY ; WEST ; RECORD ; BASIN |
| 资助项目 | National Natural Science Foundation of China[41976223] ; Pioneer Hundred Talents Program, Chinese Academy of Sciences[Y910091001] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-7018] |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001332729700001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/11704]  |
| 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.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Sun Yat Sen Univ, Sch Marine Sci, Zhuhai 519083, Peoples R China 4.China Univ Geosci, Sch Energy Resources, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Guolong,Huang, Xiaoxia,Liu, Shan,et al. The role of ice-sheet dynamics in the Miocene-Pliocene depositional systems of the Ross Sea, Antarctica[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,648:17. |
| APA | Wang, Guolong,Huang, Xiaoxia,Liu, Shan,Wu, Shiguo,&Ma, Zunqing.(2024).The role of ice-sheet dynamics in the Miocene-Pliocene depositional systems of the Ross Sea, Antarctica.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,648,17. |
| MLA | Wang, Guolong,et al."The role of ice-sheet dynamics in the Miocene-Pliocene depositional systems of the Ross Sea, Antarctica".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 648(2024):17. |
入库方式： OAI收割
来源：深海科学与工程研究所
浏览0
下载0
收藏0
其他版本
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。