An Event Stratigraphy for the Last Termination in the North Atlantic Region Based on the Greenland Ice-Core Record: A Proposal by the INTIMATE group

Authors

Svante Bjorck, University of Copenhagen
Michael J.C. Walker, University of Wales
Les C. Cwynar, University of New Brunswick
Sigfus Johnsen, University of Copenhagen
Karen-Luise Knudsen, University of Aarhus
J. John Lowe, University of London
Barbara Wohlfarth, Lund University

Document Type

Article

Publication Date

7-1998

Keywords

GRIP ice-core, stratotype, Last Termination, event stratigraphy, Greenland, North Atlantic region

Digital Object Identifier (DOI)

https://doi.org/10.1002/(SICI)1099-1417(199807/08)13:4<283::AID-JQS386>3.0.CO;2-A

Abstract

It is suggested that the GRIP Greenland ice-core should constitute the stratotype for the Last Termination. Based on the oxygen isotope signal in that core, a new event stratigraphy spanning the time interval from ca. 22.0 to 11.5 k GRIP yr BP (ca. 19.0–10.0 k ¹⁴C yr BP) is proposed for the North Atlantic region. This covers the period from the Last Glacial Maximum, through Termination 1 of the deep-ocean record, to the Pleistocene–Holocene boundary, and encompasses the Last Glacial Late-glacial of the traditional northwest European stratigraphy. The isotopic record for this period is divided into two stadial episodes, Greenland Stadials 1 (GS-1) and 2 (GS-2), and two interstadial events, Greenland Interstadials 1 (GI-1) and2 (GI-2). In addition, GI-1 and GS-2 are further subdivided into shorter episodes. The event stratigraphy is equally applicable to ice-core, marine and terrestrial records and is considered to be a more appropriate classificatory scheme than the terrestrially based radiocarbon-dated chronostratigraphy that has been used hitherto.

Comments

INTIMATE Members (Bogdan P. Onac, Babes-Bolyai University, bonac@usf.edu)

Rights Information

Terms of use for work posted in Scholar Commons.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

Journal of Quaternary Science, v. 13, issue 4, p. 283-292

Scholar Commons Citation

Bjorck, Svante; Walker, Michael J.C.; Cwynar, Les C.; Johnsen, Sigfus; Knudsen, Karen-Luise; Lowe, J. John; and Wohlfarth, Barbara, "An Event Stratigraphy for the Last Termination in the North Atlantic Region Based on the Greenland Ice-Core Record: A Proposal by the INTIMATE group" (1998). School of Geosciences Faculty and Staff Publications. 722.
https://digitalcommons.usf.edu/geo_facpub/722