Deep-Water Carbonate Ion Concentrations in the Western Tropical Pacific Since the Mid-Pleistocene: A Major Perturbation During the Mid-Brunhes
نویسندگان
چکیده
منابع مشابه
The mid-Pleistocene transition in the tropical Pacific.
A sea surface temperature (SST) record based on planktonic foraminiferal magnesium/calcium ratios from a site in the western equatorial Pacific warm pool reveals that glacial-interglacial oscillations in SST shifted from a period of 41,000 to 100,000 years at the mid-Pleistocene transition, 950,000 years before the present. SST changes at both periodicities were synchronous with eastern Pacific...
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Characterised by long term cooling and abrupt ice sheet expansion on Antarctica ~14 Ma ago, the mid Miocene marked the beginning of the modern ice-house world, yet there is still little consensus on its causes, in part because carbon cycle dynamics are not well constrained. In particular, changes in carbonate ion concentration ([CO3(2-)]) in the ocean, the largest carbon reservoir of the ocean-...
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An attempt is made to unravel the dual influences of seawater temperature and isotopic composition upon the oxygen-isotope records of benthic foraminifers from the deep Pacific (dOb). Our approach is to estimate a non-linear transfer function between past sea level and dOb over the last two glacial cycles, with additional information from the mid-Pliocene. Combining this transfer function with ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 2018
ISSN: 2169-9275
DOI: 10.1029/2018jc014084