DOI: 10.1016/j.quascirev.2014.10.033
Scopus记录号: 2-s2.0-84911888715
论文题名: Calendar-dated glacier variations in the western European Alps during the Neoglacial: The Mer de Glace record, Mont Blanc massif
作者: Le Roy M. ; Nicolussi K. ; Deline P. ; Astrade L. ; Edouard J.-L. ; Miramont C. ; Arnaud F.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 108 起始页码: 1
结束页码: 22
语种: 英语
英文关键词: Dendrochronology
; Glacier chronology
; Holocene
; Mont Blanc
; Neoglacial
; Pinus cembra
; Subfossil wood
; Tree-rings
; Western Alps
Scopus关键词: Catchments
; Dendrochronology
; Holocenes
; Mont Blanc
; Neoglacial
; Pinus cembra
; Tree rings
; Western Alps
; Decay (organic)
; alpine environment
; dendrochronology
; glacier
; Little Ice Age
; magnitude
; Neoglacial
; reconstruction
; tree ring
; Mountains
; Pinus Cembra
; Rings
; Trees
; Wood
; Alps
; France
; Haute Savoie
; Mer de Glace
; Mont Blanc
; Rhone-Alpes
; Savoy Alps
; Western Alps
; Pinus cembra
英文摘要: Holocene glacier records from the western European Alps are still sparse, although a number of sites are well suited to constraining pre- and early- Little Ice Age (LIA) glacier advances. The present study provides the first dendrochronologically-based and calendar-dated Neoglacial glacier chronology for the Mont Blanc massif, French Alps. It is based on the analysis of over 240 glacially buried Pinus cembra subfossil logs and wood remains found either embedded-in-till or as detrital material in the Mer de Glace right lateral moraine. Only a few of the samples were found to be 'formally in situ' but we show that some logs were 'virtually in situ' (not rooted but showing little or no evidence of reworking) and could be used to accurately reconstruct past glacier margin behavior in space and time. Uncertainties regarding the other samples may relate to original growth location and/or to outer wood decay. The resulting dates (followed by a '+') were therefore considered maximum-limiting ages for glacier advances. The main burial events - interpreted as glacier advances - occurred between ca1655+ and 1544+BC, between ca1230+ and 1105+BC, between ca1013+ and 962+/937+BC, at ca802-777BC, after 608+BC, between 312 and 337. AD, between ca485+AD and 606+AD, between 1120 and 1178. AD, between ca1248 and 1278+/1296. AD, and after 1352+AD. These advances predate the late LIA maxima known from historical sources. The magnitude of the advances gradually increased to culminate in three near-Neoglacial maxima during the 7th, 12th and 13th centuries AD, followed by a first LIA/Neoglacial maximum in the second half of the 14th century AD. The pattern of Neoglacial events described here is coherent with Central and Eastern Alpine glacier chronologies. This indicates marked synchronicity of late Holocene glacier variability and forcing at a regional scale, although occasional differences could be detected between 'Western' and 'Eastern' records. The Mer de Glace record also confirms the link between the timing of sediment erosion in a high-elevation glaciated Alpine catchment and subsequent deposition in the sub-alpine Lake Bourget. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60053
Appears in Collections: 过去全球变化的重建
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作者单位: EDYTEM, Université de Savoie, CNRS, Le Bourget du Lac, France; Institute of Geography, University of Innsbruck, Innsbruck, Austria; Centre Camille Julian, Aix-Marseille Université, CNRS, Aix-en-Provence, France; IMBE, Aix-Marseille Université, CNRS, Aix-en-Provence, France
Recommended Citation:
Le Roy M.,Nicolussi K.,Deline P.,et al. Calendar-dated glacier variations in the western European Alps during the Neoglacial: The Mer de Glace record, Mont Blanc massif[J]. Quaternary Science Reviews,2015-01-01,108