A high-resolution sedimentology and age determination of core PS2185 from the central Arctic Ocean, supplement to: Spielhagen, Robert F; Bonani, Georges; Eisenhauer, Anton; Frank, Martin; Frederichs, Thomas; Kassens, Heidemarie; Kubik, Peter W; Mangini, Augusto; Nørgaard-Pedersen, Niels; Nowaczyk, Norbert R; Schäper, Stefan; Stein, Ruediger; Thiede, Jörn; Tiedemann, Ralf; Wahsner, Monika (1997): Arctic Ocean evidence for late Quaternary initiation of northern Eurasian ice sheets. Geology, 25(9), 783-786

A high-resolution multiparameter stratigraphy allows the identification of late Quaternary glacial and interglacial cycles in a central Arctic Ocean sediment core. Distinct sandy layers in the upper part of the otherwise fine-grained sediment core from the Lomonosov Ridge (lat 87.5°N) correlate to f...

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Bibliographic Details
Main Authors: Spielhagen, Robert F, Bonani, Georges, Eisenhauer, Anton, Frank, Martin, Frederichs, Thomas, Kassens, Heidemarie, Kubik, Peter W, Mangini, Augusto, Nørgaard-Pedersen, Niels, Nowaczyk, Norbert R, Schäper, Stefan, Stein, Ruediger, Thiede, Jörn, Tiedemann, Ralf, Wahsner, Monika
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 1997
Subjects:
Giant box corer
Kasten corer
ARK-VIII/3
Polarstern
Helmholtz Centre for Ocean Research Kiel GEOMAR
Institute for Geosciences, Christian Albrechts University, Kiel GIK/IfG
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo
Quaternary Environment of the Eurasian North QUEEN
Arctic
Arctic Ocean
Augusto
Pedersen
Lomonosov Ridge
Siberia
Online Access:https://dx.doi.org/10.1594/pangaea.728693
https://doi.pangaea.de/10.1594/PANGAEA.728693
Description
Summary:A high-resolution multiparameter stratigraphy allows the identification of late Quaternary glacial and interglacial cycles in a central Arctic Ocean sediment core. Distinct sandy layers in the upper part of the otherwise fine-grained sediment core from the Lomonosov Ridge (lat 87.5°N) correlate to four major glacials since ca. 0.7 Ma. The composition of these ice-rafted terrigenous sediments points to a glaciated northern Siberia as the main source. In contrast, lithic carbonates derived from North America are also present in older sediments and indicate a northern North American glaciation since at least 2.8 Ma. We conclude that large-scale northern Siberian glaciation began much later than other Northern Hemisphere ice sheets.

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