The seawater neodymium and lead isotope record of the final stages of Central American Seaway closure
作者： Anne H. Osborne , Derrick R. Newkirk , Jeroen Groeneveld , Ellen E. Martin , Ralf Tiedemann
DOI: 10.1002/2014PA002676
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摘要: The shoaling and final closure of the Central American Seaway (CAS) resulted in a major change of the global ocean circulation and has been suggested as an essential driver for strengthening of Atlantic Meridional Overturning Circulation (AMOC). The exact timing of CAS closure is key to interpreting its importance. Here we present a reconstruction of deep and intermediate water Nd and Pb isotope compositions obtained from fossil fish teeth and the authigenic coatings of planktonic foraminifera in the eastern equatorial Pacific (Ocean …
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