气候变化领域集成服务门户(CCPortal): Paleogene structural development of the northern Song Hong Basin and adjacent areas: Implications for the role of extrusion tectonics in basin formation in the Gulf of Tonkin

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DOI	10.1016/j.tecto.2020.228522
	Paleogene structural development of the northern Song Hong Basin and adjacent areas: Implications for the role of extrusion tectonics in basin formation in the Gulf of Tonkin
	Hoang B.H.; Fyhn M.B.W.; Cuong T.D.; Tuan N.Q.; Schmidt W.J.; Boldreel L.O.; Anh N.T.K.; Huyen N.T.; Cuong T.X.
发表日期	2020
ISSN	00401951
卷号	789
英文摘要	The Song Hong Basin situated at the distal part of the Ailaoshan-Red River Shear Zone (ASRRSZ) holds important information on the role of extrusion tectonics in the marginal basin development in the South China Sea. Based on an extensive dataset of 2 and 3-D seismic and stratigraphic information from 27 exploration wells, the Paleogene structural evolution of the northern Song Hong Basin and adjacent areas has been studied in detail. This study proposes a new Paleogene structural development model of the study area. Eocene-Oligocene rifting in the northern Song Hong Basin was driven by left-lateral shearing from the ASRRSZ associated with a combined motion of clockwise rotation and translation of the Indochina Block, which allowed extension along the “restraining bend” geometry of the basin's eastern margin. A structural high separates the Song Hong Basin from the Beibuwan Basin, inhibiting significant strike-slip displacement transfer from the ASRRSZ into rifting in the Beibuwan Basin. Strike-slip displacement from the ASRRSZ is maintained further south to the East Vietnam Boundary Fault segment. Thus, extension of the Beibuwan, Qiongdongnan and Phu Khanh Basins were the result of the interplay between extrusion and slab-pull tectonics. During the end of the Oligocene, reduced extrusion of Indochina caused minimal rotation of the block, and the remaining left-lateral displacement along the ASRRSZ was absorbed into inversion around the junction between the Song Hong and Beibuwan basins. © 2020 Elsevier B.V.
关键词	Beibuwan Basin Extrusion Slab-pull Song Hong Basin South China Sea Strike-slip
英文关键词	Extrusion; Stratigraphy; Strike-slip faults; Clockwise rotation; Extrusion tectonics; Lateral displacements; Lateral shearings; Red River Shear Zone; Slip displacements; Structural development; Structural evolution; Settling tanks; basin evolution; block rotation; extensional tectonics; marginal basin; Paleogene; rifting; slab; Gulf of Tonkin; Pacific Ocean; Song Hong Basin; South China Sea
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207771
作者单位	Vietnam Petroleum Institute, 167 Trung Kinh, Cau Giay, Hanoi, Viet Nam; Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, Copenhagen K, DK-1350, Denmark; Geological Survey of Denmark and Greenland, GEUS, Øster Voldgade 10, Copenhagen K, 1350, Denmark; Exploration Division, PVEP Ho Chi Minh, 21st floor, Petroland Tower, 12 Tan Trao, Tan Phu, District 7, Ho Chi Minh City, Viet Nam; Vietnam Oil and Gas Group (Petrovietnam), 18 Lang Ha, Ba Dinh, Hanoi, Viet Nam
推荐引用方式 GB/T 7714	Hoang B.H.,Fyhn M.B.W.,Cuong T.D.,et al. Paleogene structural development of the northern Song Hong Basin and adjacent areas: Implications for the role of extrusion tectonics in basin formation in the Gulf of Tonkin[J],2020,789.
APA	Hoang B.H..,Fyhn M.B.W..,Cuong T.D..,Tuan N.Q..,Schmidt W.J..,...&Cuong T.X..(2020).Paleogene structural development of the northern Song Hong Basin and adjacent areas: Implications for the role of extrusion tectonics in basin formation in the Gulf of Tonkin.Tectonophysics,789.
MLA	Hoang B.H.,et al."Paleogene structural development of the northern Song Hong Basin and adjacent areas: Implications for the role of extrusion tectonics in basin formation in the Gulf of Tonkin".Tectonophysics 789(2020).