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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
Author(s) -
Björck Svante,
Walker Michael J. C.,
Cwynar Les C.,
Johnsen Sigfus,
Knudsen KarenLuise,
Lowe J. John,
Wohlfarth Barbara
Publication year - 1998
Publication title -
journal of quaternary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.142
H-Index - 94
eISSN - 1099-1417
pISSN - 0267-8179
DOI - 10.1002/(sici)1099-1417(199807/08)13:4<283::aid-jqs386>3.0.co;2-a
Subject(s) - stadial , geology , ice core , glacial period , paleontology , radiocarbon dating , stratigraphy , stratotype , ice sheet , chronostratigraphy , holocene , radiometric dating , chronology , pleistocene , oceanography , sedimentary rock , stage (stratigraphy) , tectonics
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 14 C 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) and 2 (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. © 1998 John Wiley & Sons, Ltd.