气候变化领域集成服务门户(CCPortal): Oceanographic and climatic consequences of the tectonic evolution of the southern scotia sea basins, Antarctica

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DOI	10.1016/j.earscirev.2019.102922
	Oceanographic and climatic consequences of the tectonic evolution of the southern scotia sea basins, Antarctica
	Pérez L.F.; Hernández-Molina F.J.; Lodolo E.; Bohoyo F.; Galindo-Zaldívar J.; Maldonado A.
发表日期	2019
ISSN	00128252
卷号	198
英文摘要	The Scotia Sea is a complex geological area located in the Southern Ocean which evolution is closely linked to the opening of the Drake Passage. Structural highs of continental nature derived from the former continental bridge between South America and the Antarctic Peninsula surround the abyssal plains of the Scotia Sea, restricting small isolated sedimentary basins along its southern margin. Morpho-structural and seismo-stratigraphic analyses of multichannel seismic reflection profiles, and additional geophysical data available in the region, have been conducted, decoding regional and global implications of the basins' evolution. The main aim of this work is to describe the stratigraphic evolution of the southern Scotia Sea basins, from their opening in the back-arc tectonic context of the Scotia Sea, to the last oceanographic changes which have carried on global climatic implications. The evolution of the south Scotia Sea occurred through two major tectonic stages registered in the sedimentary record of the region: 1) the end of the subduction in the northwest part of the Weddell Sea during the early Miocene, which shortened the back-arc subduction trench generating a major change in the regional tectonic field that determined the evolution of the southern basins towards two different types of passive margins: magma-poor and magma-rich; and 2) the full development of the southern Scotia Sea basins during the middle Miocene, that led to the opening of deep oceanic gateways along the South Scotia Ridge. Interplay among tectonics, oceanography and climate is proposed to control the regional sedimentary stacking pattern, with coeval changes globally identified. © 2019 Elsevier B.V.
关键词	Antarctica Drake Passage and Scotia Sea Isolated oceanic basins Paleoceanography Passive margins Seismic stratigraphy
英文关键词	backarc basin; basin evolution; climate variation; paleoceanography; paleoclimate; passive margin; plate tectonics; sedimentary basin; seismic stratigraphy; subduction zone; tectonic evolution; Antarctica; Atlantic Ocean; Drake Passage; Scotia Sea
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203535
作者单位	British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom; Department of Earth Sciences, Royal Holloway University of London, Egham Hill, Egham, TW20 0EX, United Kingdom; Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante 42/C, Trieste, Sgonico 34010, Italy; Instituto Geologico y Minero de España, Rio Rosas 23, Madrid, 28003, Spain; Instituto Andaluz de Ciencias de la Tierra, Avd. de las Palmeras 4, Granada, Armilla 18100, Spain; Dpto. Geodinámica, Granada University, Avd. de Fuentenueva s/n, Granada, 18002, Spain
推荐引用方式 GB/T 7714	Pérez L.F.,Hernández-Molina F.J.,Lodolo E.,et al. Oceanographic and climatic consequences of the tectonic evolution of the southern scotia sea basins, Antarctica[J],2019,198.
APA	Pérez L.F.,Hernández-Molina F.J.,Lodolo E.,Bohoyo F.,Galindo-Zaldívar J.,&Maldonado A..(2019).Oceanographic and climatic consequences of the tectonic evolution of the southern scotia sea basins, Antarctica.Earth Science Reviews,198.
MLA	Pérez L.F.,et al."Oceanographic and climatic consequences of the tectonic evolution of the southern scotia sea basins, Antarctica".Earth Science Reviews 198(2019).