Téphrostratigraphie et préhistoire des 160 derniers millénaires en Limagne d'Auvergne (Massif Central, France)

Abstract : The Geocler 1 core extracted from the Clermont crater lake sediments and surface studies made in several localities north of Clermont provided numerous stratigraphic, environmental and chronological data (TL and radiocarbon) which allow us to present a chronostratigraphy of the Limagne for the past 160 ky. The Clermont maar eruption has been previously TL dated around 160 ky. In the crater-lake sediments, between 86 and 28 m deep, 111 well identified ash-falls have been encountered. No acid tephra has been discovered, but several layers rich in acicular minerals indicate acid eruptions, the origin of which remains unclear. Between 15 and 7 ky, 14 main ash-falls have been recognized and for some of them, the volcano has been iden-tified: Puy de La Nugère, Puy de Dôme, Puy Chopine, Kilian Crater and Puy de Pariou contribute greatly to the local tephra succession. Perspectives for an increase in prehistoric studies of volcanic areas are outlined.
Document type :
Journal articles
Bulletin de la Société Préhistorique Française, Société Préhistorique Française, 1994, 91 (2), pp.149-157


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Submitted on : Friday, July 15, 2005 - 2:29:34 PM
Last modification on : Monday, July 18, 2005 - 10:50:13 AM

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  • HAL Id : halshs-00004137, version 1

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Jean-Paul Raynal, Gérard Vernet, Serge Sanzelle, Jean Fain, Didier Miallier, et al.. Téphrostratigraphie et préhistoire des 160 derniers millénaires en Limagne d'Auvergne (Massif Central, France). Bulletin de la Société Préhistorique Française, Société Préhistorique Française, 1994, 91 (2), pp.149-157. <halshs-00004137>

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