Oxygen isotopic and species composition of planktonic foraminiferas in sediment cores from the North Atlantic, supplement to: Barash, Max S; Nikolayev, Sergey D; Blyum, Natalia S (1973): Paleotemperature analysis of three sediment cores from the North Atlantic. Oceanology, 13, 870-871

Max S Barash, Sergey D Nikolayev & Natalia S Blyum
Paleotemperature curves were drawn from oxygen-isotope ratios in CaCO3 of planktonic foraminiferal tests and by the micropaleontological method using quantitative relationships of their species. Two series of curves yield similar results. These data confirm that isotope composition of oxygen reflects primarily temperature, and not isotope composition in ocean water. Temperature of the upper layer of ocean water increased from north to south both during the last two glaciations and in the interglacials. All three sediment...
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