(Table S2) Age determination of ODP Sites 202-1234 and 202-1235 ...

Antarctic Intermediate Water is, at present, a water mass that brings oxygen to intermediate depths throughout the Southern Hemisphere oceans. Models have suggested that intermediate waters had higher concentrations of oxygen during the last glacial period (Meissner et al., 2005, doi:10.1029/2004PA0...

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Bibliographic Details
Main Authors: Muratli, Jesse M, Chase, Zanna, Mix, Alan C, McManus, James
Format: Dataset
Language:English
Published: PANGAEA - Publishing Network for Geoscientific and Environmental Data 2010
Subjects:
Online Access:https://dx.doi.org/10.15468/z24kjf
https://www.gbif.org/dataset/6f4a4bb2-4c3c-4f52-8acf-fa8f44b30ada
Description
Summary:Antarctic Intermediate Water is, at present, a water mass that brings oxygen to intermediate depths throughout the Southern Hemisphere oceans. Models have suggested that intermediate waters had higher concentrations of oxygen during the last glacial period (Meissner et al., 2005, doi:10.1029/2004PA001083; Liu et al., 2002, doi:10.1029/2001GL013938), consistent with globally reduced denitrification (Galbraith et al., doi:10.1029/2003PA001000) and increased production of Antarctic Intermediate Water (Lynch-Stieglitz and Fairbanks, 1994, doi:10.1029/93PA02446). However, some palaeoceanographic reconstructions (Bostock et al., 2004, doi:10.1029/2004PA001047; Pahnke and Zahn, 2005, doi:10.1126/science.1102163) have indicated that production decreased in the southeast Pacific Ocean at this time. Here we analyse the concentrations of Re and Mn, the sedimentary concentrations of which are controlled by the amount of dissolved oxygen at the sea floor, from three sediment cores located along the Chilean margin for the ...