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Sökning: onr:"swepub:oai:DiVA.org:lnu-16942" > Problems of AMS dat...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003013naa a2200373 4500
001oai:DiVA.org:lnu-16942
003SwePub
008120120s1993 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-169422 URI
024a https://doi.org/10.1111/j.1502-3885.1993.tb00171.x2 DOI
040 a (SwePub)lnu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Wohlfart, B.4 aut
2451 0a Problems of AMS dating the Swedish varved clays of the last glacial-interglacial transition and the potential and difficulties of calibrating Late Weichselian "absolute" chronologies.
264 c 2008-01-16
264 1b Wiley,c 1993
338 a print2 rdacarrier
520 a The increasing focus on the chronology of environmental and climatic changes of the last glacial-interglacial transition has led to several independent attempts to try to calibrate the 14C time-scale beyond the Holocene. The Late Weichselian Gotiglacial varved clays of the Swedish Time Scale could potentially be used for this purpose. The reliability of the Swedish Time Scale is discussed as well as different ways of using the Swedish varved clays for calibrating the 14C chronology. The strategy and initial results from an ongoing calibration project are presented. They show clearly that, if the right strategy is adopted, varved clay may be dated by accelerator mass spectrometry (AMS) 14C measurement of terrestrial macrofossils. A Late Weichselian 'event stratigraphy', including the Vedde Ash fall-out, is established for south Scandinavia using three dating categories: clay varve measurements, terrestrial macrofossil measurement, and lake sediment (including aquatic mosses) measurements. It suggests that a 14C chronology based on terrestrial organic remains is not consistent with the traditional Late Weichselian chronostratigraphy based on lake-sediment samples, and that 'clay varve years' exceed 'terrestrial 14C years' by c. 900 years at the end of, and by 1100–1200 years at the beginning of the Younger Dryas Chronozone. Further back in time, the time-scales appear to converge. These results are compared with other recently published calibration studies.
653 a Paleoecology
653 a Paleoekologi
700a Björck, S.4 aut
700a Possnert, G.4 aut
700a Lemdahl, Geoffreyu Department of Quaternary Geology, Lund University, Tornav, 13, S-223 63 Lund,Palaeoecology4 aut0 (Swepub:lnu)ulege
700a Brunnberg, L.4 aut
700a Ising, J.4 aut
700a Olsson, S.4 aut
700a Svensson, N.-O.4 aut
710a Department of Quaternary Geology, Lund University, Tornav, 13, S-223 63 Lundb Palaeoecology4 org
773t Boreasd : Wileyg 22:2, s. 113-128q 22:2<113-128x 0300-9483x 1502-3885
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-16942
8564 8u https://doi.org/10.1111/j.1502-3885.1993.tb00171.x

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