High-frequency climate linkages between the North Atlantic and the Mediterranean during marine oxygen isotope stage 100 (MIS100)
High-frequency climate linkages between the North Atlantic and the Mediterranean during marine oxygen isotope stage 100 (MIS100)
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海洋氧同位素阶段 100 (MIS100) 期间北大西洋和地中海之间的高频气候联系
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Raymo
中科院分区：
文献类型：
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作者：
Julia Becker;L. Lourens;M. Raymo
地中海和北大西洋深海沉积物的高分辨率记录表明，水文和气候的快速变化发生在海洋氧同位素第100阶段（MIS 100）（-2.52Ma），表现出与晚更新世Dansgaard-Oeschger、邦德周期和海因里希事件相似的特征。在更新世晚期，北大西洋的海洋和大气变化可能是通过地表水流入和南极-地中海大气压力梯度的某种组合传播到地中海的。我们的数据表明，尽管从上新世晚期以41千年为主导的冰川周期向更新世晚期以100千年为主导的冰川周期过渡，但至少在过去2.6 Ma期间，次米兰科维奇和千年尺度气候振荡的机制是相同的。
High-resolution records of Mediterranean and North Atlantic deep-sea sediments indicate that rapid changes in hydrology and climate occurred during marine oxygen isotope stage 100 (MIS100) (at ∼2.52 Ma), which exhibits characteristics similar to late Pleistocene Dansgaard-Oeschger, Bond cycles and Heinrich events. As in the late Pleistocene, North Atlantic oceanographic and atmospheric changes were probably transmitted into the Mediterranean by some combination of surface water inflow and Atlantic-Mediterranean atmospheric pressure gradients. Our data suggest that the mechanism(s) responsible for sub-Milankovitch and millennial-scale climate oscillations were the same over at least the past 2.6 Ma, notwithstanding the transition from the 41-kyr-dominated glacial cycles of the late Pliocene to the 100-kyr cycles of the late Pleistocene.