中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 深海科学与工程研究所
  3. 中国科学院深海科学与工程研究所
  4. 深海科学研究部
  5. 深海地球物理与资源研究室
Stratigraphic evolution and drowning steps of a submerged isolated carbonate platform in the northern South China Sea

文献类型：期刊论文

作者Chen, Wanli4,5; Wu, Shiguo2,4,5; Wang, Dawei4,5; Betzler, Christian1; Ma, Yongsheng3
刊名FRONTIERS IN MARINE SCIENCE
出版日期2023-07-05
卷号10页码:21
关键词drowning mechanism stratigraphic evolution drowning steps isolated carbonate platforms northern South China Sea
DOI10.3389/fmars.2023.1200788
通讯作者Wu, Shiguo(swu@idsse.ac.cn) ; Wang, Dawei(wangdawei@idsse.ac.cn)
英文摘要Drowned carbonate platforms on passive margins present a paradox, because their great growth potential exceeds the typical rates of passive margin subsidence and any relative sea-level rise driven by long-term processes in the geologic record. In this study, manned submersible observations, sampling, and high-resolution acoustic data were used to investigate a drowned isolated carbonate platform cropping out at a water depth of 536-800 m in the northern South China Sea. Based on the results, the Early Miocene strata of the platform are grouped into three units (AU1, AU2, and AU3) that formed on the fault-created topography. The fault-created topography served as a template for the onset of the carbonate platform deposition and as a pedestal for the localization of backstepped platforms in response to accommodation space variations, primarily driven by rapid subsidence and eustatic rises during the Early Miocene. The Middle Miocene strata of the platform are grouped into four units (AU4, PU1, PU2, and PU3), exhibiting a general switch from dominantly aggrading to dominantly prograding platform margins, in tandem with the cessation of faulting. The biostratigraphy and established seismic-stratigraphic correlations indicate that the carbonate platform was submerged during the late Middle Miocene. The banktop consists of a heterozoan carbonate factory dominated by large benthic foraminifera and coralline algae. This facies was deposited during a time interval when summer monsoon-induced upwelling triggered heterozoan factory turnover in other carbonate platforms in the region, such as at well XK-1 (Xuande Platform). The asymmetric backstepping of the platform margins demonstrates that summer monsoon-driven currents influenced the platform drowning. Therefore, summer monsoon-induced upwelling was a major factor influencing platform drowning during the late Middle Miocene. Platform growth did not persist due to the high subsidence rate throughout the Late Miocene. This study provides new insights into the drowning mechanism of a Miocene carbonate platform in the northern South China Sea and a new seismic analog for other ancient, isolated platforms worldwide.
WOS关键词XISHA ISLANDS ; QIONGDONGNAN BASIN ; MIOCENE ; SYSTEM ; GROWTH ; ARCHITECTURE ; MAGMATISM ; MALDIVES ; INSIGHTS ; HISTORY
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:001028701600001
源URL[http://ir.idsse.ac.cn/handle/183446/10383]  
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Wu, Shiguo; Wang, Dawei
作者单位1.Univ Hamburg, Inst Geol, Hamburg, Germany
2.Univ China Acad Sci, Beijing, Peoples R China
3.China Petrochem Corp, Beijing, Peoples R China
4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Marine Geophys & Georesources Hainan Prov, Sanya, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Wanli,Wu, Shiguo,Wang, Dawei,et al. Stratigraphic evolution and drowning steps of a submerged isolated carbonate platform in the northern South China Sea[J]. FRONTIERS IN MARINE SCIENCE,2023,10:21.
APA Chen, Wanli,Wu, Shiguo,Wang, Dawei,Betzler, Christian,&Ma, Yongsheng.(2023).Stratigraphic evolution and drowning steps of a submerged isolated carbonate platform in the northern South China Sea.FRONTIERS IN MARINE SCIENCE,10,21.
MLA Chen, Wanli,et al."Stratigraphic evolution and drowning steps of a submerged isolated carbonate platform in the northern South China Sea".FRONTIERS IN MARINE SCIENCE 10(2023):21.

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。