Stratigraphic templates for ice core records of the past 1.5 Myr

Abstract CO 2 Mg/Ca ratios of benthic foraminifera, in a marine core on the Chatham Rise near to New Zealand. The dust record in ice cores resembles very closely a South Atlantic marine record of iron accumulation rate. By assuming these relationships continue beyond 800 ka, our ice core record could be synchronised to dated marine sediments. This could be supplemented, and allow synchronisation at higher resolution, by the identification of rapid millennial-scale events that are observed both in Antarctic methane records and in emerging records of planktic oxygen isotopes and alkenone sea surface temperature (SST) from the Portuguese Margin. Although published data remain quite sparse, it should also be possible to match 10 Be from ice cores to records of geomagnetic palaeo-intensity and authigenic 10 Be/9 Be in marine sediments. However, there are a number of issues that have to be resolved before the ice core 10 Be record can be used. The approach of matching records to a template will be most successful if the new core is in stratigraphic order but should also provide constraints on disordered records if used in combination with absolute radiogenic ages.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Stratigraphic templates for ice core records of the past 1.5 Myr ; volume:18 ; number:7 ; year:2022 ; pages:1563-1577 ; extent:15 ; Climate of the past ; 18, Heft 7 (2022), 1563-1577 (gesamt 15)

Beteiligte, Orts- und Zeitangaben

• Urheber: Wolff, Eric W. ; Fischer, Hubertus ; van Ommen, Tas ; Hodell, David A.

Weitere Informationen

• DOI: 10.5194/cp-18-1563-2022
• URN: urn:nbn:de:101:1-2022071405275577509278
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:34 MESZ