DOI: 10.1016/j.quascirev.2016.02.017
Scopus记录号: 2-s2.0-84958967586
论文题名: Spatial and temporal variability of periglaciation of the Iberian Peninsula
作者: Oliva M. ; Serrano E. ; Gómez-Ortiz A. ; González-Amuchastegui M.J. ; Nieuwendam A. ; Palacios D. ; Pérez-Alberti A. ; Pellitero-Ondicol R. ; Ruiz-Fernández J. ; Valcárcel M. ; Vieira G. ; Antoniades D.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 137 起始页码: 176
结束页码: 199
语种: 英语
英文关键词: Climate variability
; Deglaciation
; Holocene
; Iberian Peninsula
; Last glaciation
; Periglacial processes
Scopus关键词: Climate change
; Deposits
; Geomorphology
; Landforms
; Permafrost
; Sea level
; Sedimentary rocks
; Climate variability
; Deglaciations
; Holocenes
; Iberian Peninsula
; Last glaciation
; Periglacial process
; Glacial geology
; altitude
; cirque
; climate variation
; deglaciation
; Holocene
; last glaciation
; Little Ice Age
; mountain
; periglacial process
; permafrost
; rock glacier
; spatiotemporal analysis
; thawing
; Andalucia
; Betic Cordillera
; Cantabrian Mountains
; Cantal
; Cantal Massif
; Chaouia-Ouardigha
; France
; Iberian Cordillera
; Iberian Peninsula
; Massif Central
; Meseta
; Morocco
; Pyrenees
; Sierra Nevada [Betic Cordillera]
; Spain
英文摘要: Active periglacial processes are currently marginal in the Iberian Peninsula, spatially limited to the highest mountain ranges. However, a wide variety of periglacial deposits and landforms are distributed in low and mid-altitude environments, which shows evidence of past periods of enhanced periglacial activity. The purpose of this paper is to summarize the present knowledge of past periglacial activity in the Iberian Peninsula. The chronological framework takes four main stages into account: the last glaciation, deglaciation, Holocene and present-day processes. This study focuses on the highest massifs (Pyrenees, Cantabrian Range, NW ranges, Central Range, Iberian Range, Sierra Nevada) as well as other lower elevation environments, namely the central Iberian Meseta. During the last glaciation the periglacial belt extended to much lower altitudes than today, reaching current sea level in the NW corner of the Iberian Peninsula. A wide range of geomorphological landforms and sedimentary records is indicative of very active periglacial processes during that phase, in some cases related to permafrost conditions (i.e., block streams, rock glaciers). Most of the inactive landforms and deposits in low and mid-elevations in Iberia are also related to this phase. The massive deglaciation of the Iberian massifs was caused by a gradual increase in temperatures. The deglaciation phase was only interrupted by a short period with colder conditions (the Younger Dryas) that reactivated periglacial processes in the formerly glaciated cirques of the highest lands, specifically with the widespread development of rock glaciers. During the Holocene, periglacial processes have been only active in the highest ranges, shifting in altitude according to temperature regimes and moisture conditions. The Little Ice Age saw the reactivation of periglacial activity in lower elevations than today. Currently, periglacial processes are only active in elevations exceeding 2500 m in the southern ranges and above 2000-2200 m in the northern massifs, higher in Sierra Nevada, in the south of Iberian Peninsula. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59645
Appears in Collections: 过去全球变化的重建
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作者单位: Centre for Geographical Studies - IGOT, Universidade de Lisboa, Portugal; Department of Geography, University of Valladolid, Spain; Department for Physical and Regional Geography, University of Barcelona, Spain; Department of Geography, Prehistory and Archaeology, University of the Basque Country, Spain; Department for Regional and Physical Geography, Complutense University of Madrid, Spain; Department of Geography, University of Santiago de Compostela, Spain; Department of Geography and Environment, University of Aberdeen, United Kingdom; Department of Geography, University of Oviedo, Spain; Department of Geography and Centre for Northern Studies (CEN), Université Laval, Canada
Recommended Citation:
Oliva M.,Serrano E.,Gómez-Ortiz A.,et al. Spatial and temporal variability of periglaciation of the Iberian Peninsula[J]. Quaternary Science Reviews,2016-01-01,137