期刊
EARTH AND PLANETARY SCIENCE LETTERS
卷 267, 期 1-2, 页码 353-364出版社
ELSEVIER
DOI: 10.1016/j.epsl.2007.11.054
关键词
tectonic plates; Indian Ocean; neogene; paleocirculation; Nd isotopes; ODP site 707; ODP site 757; Indonesian throughtflow; ODP site 758; ODP site 807
Changes in ancient oceanic current patterns have been strongly influenced by plate tectonics, particularly by the opening or closing of gateways between different oceans. Such modifications of oceanic circulation have important consequences on climate. We studied the Nd seawater isotopic composition of Indian and Pacific Ocean cores using Nd isotopes, which are good paleo-oceanographic tracers. We focused on the past 25 Ma which are marked by the closure of the Indonesian gateway as well as the Mediterranean connection. We show that a strong westerly oceanic surface current, which we refer to the Miocene Indian Ocean Equatorial Jet (MIOJet), linked the eastern and western Indian Ocean from 14 Ma to 3 Ma and infer that this major change in oceanic circulation probably induced important variations of global climate. (C) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据