Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095036 |
Late Miocene onset of Tasman Leakage and Southern Hemisphere Supergyre ushers in Near-modern Circulation | |
Beth A. Christensen; David De Vleeschouwer; Jorijntje Henderiks; Jeroen Groeneveld; Gerald Auer; Anna Joy Drury; Boris Theofanis Karatsolis; Jing Lyu; Christian Betzler; Gregor P. Eberli; Dick Kroon | |
2021-09-07 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | This study provides a Miocene-to-recent history of Tasman Leakage (TL), driving surface-to-intermediate waters from the Pacific into the Indian Ocean. TL, in addition to Indonesian Through Flow (ITF), constitutes an important part of the Southern Hemisphere Supergyre. Here, we employ deep-sea benthic δ13C timeseries from the southwestern Pacific and eastern Indian Oceans to identify the history of Tasman Leakage. The δ13C results combined with sedimentary evidence show that an inter-ocean connection south of Australia existed from 7 Ma onward. A southward shift in Westerlies combined with a northward movement of Australia created the oceanic corridor necessary for Tasman Leakage (between Australia and the sub-Antarctic Front) at this time. Furthermore, changes in the northern limb of the Supergyre (ITF) are evident in the sedimentary record on Broken Ridge from ∼3-2 Ma when Banda Sea intermediate waters started originating from the North Pacific. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/337574 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Beth A. Christensen,David De Vleeschouwer,Jorijntje Henderiks,et al. Late Miocene onset of Tasman Leakage and Southern Hemisphere Supergyre ushers in Near-modern Circulation[J]. Geophysical Research Letters,2021. |
APA | Beth A. Christensen.,David De Vleeschouwer.,Jorijntje Henderiks.,Jeroen Groeneveld.,Gerald Auer.,...&Dick Kroon.(2021).Late Miocene onset of Tasman Leakage and Southern Hemisphere Supergyre ushers in Near-modern Circulation.Geophysical Research Letters. |
MLA | Beth A. Christensen,et al."Late Miocene onset of Tasman Leakage and Southern Hemisphere Supergyre ushers in Near-modern Circulation".Geophysical Research Letters (2021). |
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