Journal ArticleDOI
Quaternary stratigraphy of Norden, a proposal for terminology and classification
TLDR
In this paper, a proposal for a common chronostratigraphical classification of the Quaternary in Norden (and partly continental NW Europe) is made, based on the sequence of glacials/interglacials.Abstract:
Principles and terminology for classification of the Quaternary are discussed, including lithostratigraphy, biostratigraphy. morphostratigraphy, climatostratigraphy and chronostratigraphy. The main conclusion is a proposal for a common chronostratigraphical classification of the Quaternary in Norden (and partly continental NW Europe). The Quaternary is subdivided into the Pleistocene and the Holocene Series. The Pleistocene is further subdivided into several provisional stages (Weichselian, Eemian, etc.), based on the sequence of glacials/interglacials. but with the boundaries preferably defined by stratotypes. The Late Weichselian and the Flandrian (Holocene) are subdivided into chronozoncs (Bolling, Older Dryas, Allerod, Younger Dryas, Preboreal, Boreal, Atlantic, Subboreal, Subatlantic) with the boundaries dcfined in conventional radiocarbon years.read more
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Journal ArticleDOI
A stratigraphic framework for abrupt climatic changes during the Last Glacial period based on three synchronized Greenland ice-core records: refining and extending the INTIMATE event stratigraphy
Sune Olander Rasmussen,Matthias Bigler,Simon Blockley,Thomas Blunier,Susanne L Buchardt,Henrik Clausen,Ivana Cvijanovic,Ivana Cvijanovic,Dorthe Dahl-Jensen,Sigfus J Johnsen,Hubertus Fischer,Vasileios Gkinis,Myriam Guillevic,Myriam Guillevic,Wim Z. Hoek,J. John Lowe,Joel B Pedro,Joel B Pedro,Trevor Popp,Inger K Seierstad,Jørgen Peder Steffensen,Anders Svensson,Paul Vallelonga,Bo Møllesøe Vinther,Michael Walker,Michael Walker,Joe J. Wheatley,Mai Winstrup,Mai Winstrup +28 more
TL;DR: In this paper, a more detailed and extended version of the Greenland Stadials (GS) and Greenland Interstadials (GI) template for the whole of the last glacial period is presented, based on a synchronization of the NGRIP, GRIP, and GISP2 ice-core records.
Journal ArticleDOI
Abrupt increase in Greenland snow accumulation at the end of the Younger Dryas event
Richard B. Alley,D. A. Meese,C. A. Shuman,Anthony J. Gow,Kendrick C. Taylor,Pieter Meiert Grootes,James W. C. White,M. Ram,E. D. Waddington,Paul Andrew Mayewski,Gregory A. Zielinski +10 more
TL;DR: In this article, the authors present results from a new Greenland ice core (GISP2) showing that snow accumulation doubled rapidly from the Younger Dryas event to the subsequent Preboreal interval, possibly in one to three years.
Journal ArticleDOI
Deglacial sea-level record from Tahiti corals and the timing of global meltwater discharge
Edouard Bard,Edouard Bard,Bruno Hamelin,Maurice Arnold,Lucien F. Montaggioni,Guy Cabioch,G. Faure,Francis Rougerie +7 more
TL;DR: In this paper, the authors date fossil corals from Tahiti, which is far from plate boundaries and thus is likely to be tectonically relatively stable, and remote from the locations of large former ice sheets, and reveal that the meltwater pulse coincides with a short and intense climate cooling event that followed the initiation of the Bolling-Allerod warm period.
Journal ArticleDOI
Oxygen 18/16 variability in Greenland snow and ice with 10 -3- to 105-year time resolution
P. M. Grootes,M. Stuiver +1 more
TL;DR: The Greenland Ice Sheet Project 2 (GISP2) ice core has been used to provide a 100,000 +-year detailed oxygen isotope profile covering almost a full glacial-interglacial cycle as discussed by the authors.
Journal ArticleDOI
The role of ocean-atmosphere reorganizations in glacial cycles
TL;DR: In this paper, a case is made that glacial-to-interglacial transitions involve major reorganizations of the ocean-atmosphere system, and that these reorganizations constitute jumps between stable modes of operation which cause changes in the greenhouse gas content and albedo of the atmosphere.
References
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Journal ArticleDOI
Half-life of Radiocarbon
TL;DR: The Fifth Radiocarbon Dating Conference, meeting at Cambridge (see p. 943 of this issue of Nature), adopted the following resolution as discussed by the authors, which determined the 1.1 − 3 of the half-life of carbon-14.
Journal Article
Late Quaternary foraminifera from Vendsyssel, Denmark and Sandnes, Norway
Abstract: Rolf W. Feyling-Hanssen: Weichselian interstadial Foraminifera from the Sandnes-Jæren area. Five shallow borings in the town of Sandnes, south of Stavanger, revealed clay deposits with marine fossils under a cover of sandy till with large blocks of Archaen rocks. This clay is called the Sandnes Clay. It is stiff and pre-consolidated, and disturbed only in the uppermost part. Four foraminiferal zones were distinguished, 1) the labradoricum-norcrossi assemblage, 2) the upper zone with scattered specimens, 3) the asklundi-bartletti assemblage, 4) the lower zone with scattered specimens. The assemblages are usually dominated by Elphidium clavatum and Cassidulina crassa, and turn out to be of Middle Weichselian (Middle Wisconsin) interstadial age. Deposits of corresponding age were found in the district of Jæren and on the island of Karmøy.
Journal ArticleDOI
Radiocarbon dating of marine shells, including a discussion of apparent age of Recent shells from Norway
TL;DR: In this paper, the authors concluded that shell dates are reliable when handled carefully and gave apparent ages from 340±75 to 550±80 years, indicating that apparent age is not a significant problem in dating of Norwegian shells.
Late-glacial flora and periglacial phenomena in the Netherlands
TL;DR: In the East of Holland, in the Province of Overijssel, there is a region that, from the point of view of landscape, is one of the most beautiful and the most interesting we know in this country as discussed by the authors.
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