Age, origin and significance of a new middle MIS 3 tephra horizon identified within a long-core sequence from Les Echets, France

A new tephra has been identified within a long core (EC 3) sequence recovered from Les Echets, near Lyon, France. This visible tephra was discovered as part of a high resolution multiproxy re‐investigation of the Les Echets sequence. Independent chronological information suggests that the tephra is...

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Published inBoreas Vol. 37; no. 3; pp. 434 - 443
Main Authors VERES, DANIEL, DAVIES, SIWAN M., WOHLFARTH, BARBARA, PREUSSER, FRANK, WASTEGÅRD, STEFAN, AMPEL, LINDA, HORMES, ANNE, POSSNERT, GÖRAN, RAYNAL, JEAN-PAUL, VERNET, GÉRARD
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.08.2008
Wiley
Subjects
Archaeology and Prehistory
Earth Sciences
Elementarpartikelfysik
Elementary particle physics
Fysik
Geovetenskap
Humanities and Social Sciences
Ion physics
Jonfysik
NATURAL SCIENCES
NATURVETENSKAP
Physics
Sciences of the Universe
France
France, Rhone-Alpes, Lyon
Germany, Eifel
MIS 3
basanite
tephra bed
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Summary:A new tephra has been identified within a long core (EC 3) sequence recovered from Les Echets, near Lyon, France. This visible tephra was discovered as part of a high resolution multiproxy re‐investigation of the Les Echets sequence. Independent chronological information suggests that the tephra is c. 2 000–45 000 years old, and geochemical analysis indicates that it is of basanitic composition. The latter suggests a possible origin in the Eifel; however, as yet, no other volcanic events or deposits can be correlated to the Les Echets tephra. New sedimentological and chronological data are presented indicating that the tephra falls within an interval that most likely correlates with Dansgaard–Oeschger events 12‐9. Thus, this tephra could potentially be an important middle MIS 3 marker horizon in central Europe if it can be traced in other palaeorecords.
Bibliography:ArticleID:BOR028
istex:E7A5433F3CE65F952435A2D7105B534C3C211178
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‘Emil Racovita’ Speleological Institute, Clinicilor 5, 400006 Cluj, Romania and Stockholm University, Department of Physical Geography and Quaternary Geology, SE‐10691 Stockholm, Sweden; Siwan M. Davies, School of the Environment and Society, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, Wales, UK; Barbara Wohlfarth, Department of Geology and Geochemistry, SE‐10691 Stockholm, Sweden; Frank Preusser, Institut für Geologie, Universität Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland; Stefan Wastegård and Linda Ampel, Stockholm University, Department of Physical Geography and Quaternary Geology, SE‐10691 Stockholm, Sweden; Anne Hormes, Quaternary Geology, The University Centre in Svalbard, P.O. Box 156, NO‐9171 Longyearbyen, Norway; Göran Possnert, Ångströmlaboratory, Uppsala University, P.O. Box 534, SE‐75121 Uppsala, Sweden; Jean‐Paul Raynal, CNRS UMR 5199 PACEA, Université de Bordeaux I, IPGQ, Avenue des facultés, F‐33405 Talence, France; Gérard Vernet, CNRS UMR 6042, NRAP, rue du Mont Mouchet 7, F‐63320 Chadeleuf, France
danveres@hasdeu.ubbcluj.ro
Daniel Veres (e‐mail
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ISSN:0300-9483
1502-3885
1502-3885
DOI:10.1111/j.1502-3885.2008.00028.x