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Morphology, architecture, and evolutionary processes of the Zhongjian Canyon between two carbonate platforms, South China Sea
Lu, Yintao1,2; Li, Wei3; Wu, Shiguo2,4; Cronin, Bryan T.5; Lyu, Fuliang1; Wang, Bin1; Yang, Taotao1; Ma, Benjun4
2018-11-01
Source PublicationINTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
ISSN2324-8858
Volume6Issue:4Pages:SO1-SO15
AbstractTwo isolated Neogene carbonate platforms (Xisha and Guangle carbonate platforms) have developed in the rifted uplifts since the Early Miocene. A large-scale submarine canyon system, the Zhongjian Canyon (ZJC), has developed in the tectonic depression between the two platforms since the Middle Miocene. High-resolution bathymetry data and 2D and 3D seismic data reveal the existence of the ZJC on the present seafloor, as well as in Neogene intervals. It exhibits typical characteristics of deepwater canyons that cut the surrounding rocks and indicate strong erosional features. The ZJC resulted from northwest-southeast strike-slip fault activities during synrift and postrift stages, and it periodically grew during the development of carbonate platforms since the Middle Miocene. We identified four cycles of parallel to subparallel high amplitude and dim reflectors in seismic data, which we interpreted as alternating canyon fill, based on the interpretation of seismic facies. Thus, the sedimentary evolution of the ZJC can be divided into four typical stages, which were in the Middle Miocene, Late Miocene, Early Pliocene, and Pleistocene. Considering the tectonic background of the carbonate platforms, as well as the on-going igneous activities, the sediment filling the canyon could be derived from a mixture of carbonate clasts, igneous clasts, mud, and silt. The laminar high-amplitude reflectors and dim-reflector package represented a fining-upward sedimentary cycle. The coarse-grained sediment in canyon fillings could be turbidites, carbonate debrites, and even igneous clasts. In contrast, the fine-grained sediment is likely to be dominated by pelagic to hemipelagic mud, and silt. This case study describes a deepwater canyon under a carbonate-dominated sedimentary environment and has significant implications for improving our knowledge of periplatform slope depositional processes. Furthermore, the insight gained into periplatform slope depositional processes can be applied globally.
DOI10.1190/INT-2017-0222.1
Funding Organizationongoing South China Sea deep-water project of PetroChina ; Natural Science Foundation of China ; International Project of Science and Technology Bureau of Hainan Province ; CAS Pioneer Hundred Talents Program
Language英语
Funding Projectongoing South China Sea deep-water project of PetroChina[91228208] ; Natural Science Foundation of China[N2017ZX05026006] ; Natural Science Foundation of China[41676051] ; International Project of Science and Technology Bureau of Hainan Province[ZDYF2016215] ; CAS Pioneer Hundred Talents Program
WOS KeywordDEEP-WATER ; QIONGDONGNAN BASIN ; SUBMARINE-CANYON ; SEISMIC CHARACTERISTICS ; CONTINENTAL-MARGIN ; SLOPE ; RESERVOIR ; DEPOSITION ; TRANSPORT ; SYSTEMS
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000454895500030
PublisherSOC EXPLORATION GEOPHYSICISTS
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Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/6487
Collection深海科学研究部_深海地球物理与资源研究室
Corresponding AuthorLu, Yintao
Affiliation1.Petrochina Hangzhou Res Inst Geol, Hangzhou 310023, Zhejiang, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
4.Chinese Acad Sci, Lab Marine Geophys & Georesource, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
5.Deep Marine Ltd, 9 North Sq, Aberdeen AB11 5DX, Scotland
Recommended Citation
GB/T 7714
Lu, Yintao,Li, Wei,Wu, Shiguo,et al. Morphology, architecture, and evolutionary processes of the Zhongjian Canyon between two carbonate platforms, South China Sea[J]. INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION,2018,6(4):SO1-SO15.
APA Lu, Yintao.,Li, Wei.,Wu, Shiguo.,Cronin, Bryan T..,Lyu, Fuliang.,...&Ma, Benjun.(2018).Morphology, architecture, and evolutionary processes of the Zhongjian Canyon between two carbonate platforms, South China Sea.INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION,6(4),SO1-SO15.
MLA Lu, Yintao,et al."Morphology, architecture, and evolutionary processes of the Zhongjian Canyon between two carbonate platforms, South China Sea".INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION 6.4(2018):SO1-SO15.
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