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学科主题: Oceanography
题名: Surface circulation in the eastern Indian Ocean during last 5 million years: Planktic foraminiferal evidences
作者: Sinha, DK ; Singh, AK
通讯作者: devasinha@yahoo.com
关键词: planktic foraminifera ; ocean circulation ; Pliocene ; Pleistocene ; Indian ocean ; foraminiferal evidence ; circulation ; West Australian current ; Indonesian seaway ; Leeuwin current
刊名: INDIAN JOURNAL OF MARINE SCIENCES
发表日期: 2007-01-01
卷: 36, 期:4, 页:342-350
收录类别: sci
部门归属: [Sinha, Devesh K.] Univ Delhi, Ctr Adv Study Geol, Delhi 110007, India; [Singh, Ashutosh Kumar] Phys Res Lab, Planetary & Geosci Div, Ahmadabad 380009, Gujarat, India
摘要: The paper describes the major circulation changes in the eastern Indian Ocean during last 5 million years based on variation planktic foraminiferal assemblages in various ODP and DSDP cores examined by various workers. The Late Miocene/Pliocene transition is characterized by weakening of the Leeuwin Current and migration of the polar front towards north. The early Pliocene is marked by closing of the Indonesian Seaway for surface waters and strengthening of the Leeuwin Current, a general warming of the surface waters and thickening of the mixed layer in the eastern Indian Ocean. The Late Pliocene and Pleistocene witnessed severe climatic fluctuations and episodic weakening and strengthening of the Leeuwin Current in response to either ENSO induced changes in the Western Pacific Warm Pool or lowering of sea level and reduction in Indonesian throughflow due to ice sheet expansion.
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/8437
Appears in Collections:海洋科技动态信息-印太暖池系统研究_期刊论文

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Recommended Citation:
Sinha, DK; Singh, AK.Surface circulation in the eastern Indian Ocean during last 5 million years: Planktic foraminiferal evidences,INDIAN JOURNAL OF MARINE SCIENCES,2007,36(4):342-350
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