QUATERNARY SCIENCE REVIEWS | 卷:136 |
A fluvial record of the mid-Holocene rapid climatic changes in the middle Rhone valley (Espeluche-Lalo, France) and of their impact on Late Mesolithic and Early Neolithic societies | |
Article | |
Berger, Jean-Francois1  Delhon, Claire2  Magnin, Frederic3  Bonte, Sandrine4  Peyric, Dominique5  Thiebault, Stephanie6  Guilbert, Raphaele7  Beeching, Alain8  | |
[1] Univ Lyon 2, CNRS, UMR EVS 5600, F-69007 Lyon, France | |
[2] Univ Nice Sophia Antipolis, CNRS, UMR 7264, CEPAM, F-06300 Nice, France | |
[3] Aix Marseille Univ, IMBE, CNRS, IRD,Avignon Univ,Europole Mediterraneen Arbois, BP 80, F-13545 Aix En Provence 4, France | |
[4] 10 Pl Achille Jubinal, F-65200 Bagneres De Bigorre, France | |
[5] Musee Pierre Martel Vacheres, F-04110 Vacheres, France | |
[6] Museum Natl Hist Nat, CNRS, Archeozool, Archeobot,UMR 7209, F-75005 Paris, France | |
[7] Univ Lyon 2, INRAP, UMR Archeorient 5133, F-69007 Lyon, France | |
[8] Univ Lyon 2, MOM UMR Archeorient 5133, F-69007 Lyon, France | |
关键词: Mid-Holocene; Rapid climatic change; 8.2 and 7.7/7.1 events; Middle Rhone valley; fluvial metamorphosis; Palaeosoil; Early Neolithic; Ecological successions; | |
DOI : 10.1016/j.quascirev.2015.11.019 | |
来源: Elsevier | |
【 摘 要 】
This multi-proxy study of a small floodplain in the Rhone catchment area, at the northern edge of the Mediterranean morphoclimatic system, provides valuable information concerning the impact of mid Holocene climate variability (8.5-7.0 ka) and the effects of two rapid climatic changes (8.2 and 7.7/7.1 ka) on an alluvial plain, its basin and the first farming societies of the Rhone valley. Around 7.7/7.1 ka, the combined effects of (1) a strong rate of change in insolation and (2) variations in solar activity amplified marine and atmospheric circulation in the north-west Atlantic (Bond event 5b), which imply continental hydrological, soil and vegetation changes in the small catchment area. For this period, strong fluctuations in the plant cover ratio have been identified, related to a regime of sustained and regular fires, as well as abundant erosion of the hill slopes and frequent fluvial metamorphoses which led to braiding of the watercourse in this floodplain. There are few data available to evaluate the impact of natural events on prehistoric communities. This continental archive offers clear multi-proxy data for discussion of these aspects, having 4 cultural layers interbedded in the fluvial sequence (1 Late Mesolithic, 3 Cardial/Epicardial). Earlier data indicate the difficulty in recognizing such cultural features in the low alluvial plains of southern France during the Mesolithic/Early Neolithic transition, which should lead to caution when developing settlement models for this period. (C) 2015 Elsevier Ltd. All rights reserved.
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