- journal_title：Geology
- Contributor：Robert F. Spielhagen ; Georges Bonani ; Anton Eisenhauer ; Martin Frank ; Thomas Frederichs ; Heidemarie Kassens ; Peter W. Kubik ; Augusto Mangini ; Niels Nøgaard Pedersen ; Norbert R. Nowaczyk ; Stefan Schäper ; Ruediger Stein ; Jörn Thiede ; Ralf Tiedemann ; Monika Wahsner
- Publisher：Geological Society of America
- Date：1997-
- Format：text/html
- Language：en
- Identifier：10.1130/0091-7613(1997)025<0783:AOEFLQ>2.3.CO;2
- journal_abbrev：Geology
- issn：0091-7613
- volume：25
- issue：9
- firstpage：783
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.