Planktonic foraminifera in Core ML2_66, North Atlantic ...

• Main Authors: Barash, Max S, Yushina, Irina G
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1999
• Subjects: Gravity corer; ML2; Mikhail Lomonosov; Archive of Ocean Data ARCOD; North Atlantic; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.761082; https://doi.pangaea.de/10.1594/PANGAEA.761082

Evolution of approaches and methods for reconstruction of paleoenvironmental conditions from microfossils contained in bottom sediments is assessed. Authors elaborated a new actualistic basis for such reconstructions, consisting of a database on contents of tests of planktonic foraminifers in the surface layer of Atlantic sediments and a package of mathematical tools for computer data processing. Structure of the database is described. It contains data on test contents for 29 species and varieties of planktonic foraminifers in 381 samples. A mathematical model designed for reconstructions is based on factor analysis and multidimensional spline interpolation. The model allows one to deduce Quaternary hydrological parameters (paleotemperature, paleosalinity) for standard hydrological levels down to depth of 250 m for the four seasons of the year. Reconstructions are illustrated by an example of a sedimentary core from the North Atlantic representing a period of 300 ky. During the next to last and the last ... : Supplement to: Barash, Max S; Yushina, Irina G (1999): Reconstruction of the Quaternary paleoceanographic parameters: New approaches. Translated from Okeanologiya, 1999, 39(2), 270-280, Oceanology, 39(2), 245-254 ...