Spatial and temporal variability of periglaciation of the Iberian Peninsula
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 perigla...
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Online Access: | http://hdl.handle.net/10451/28173 https://doi.org/10.1016/j.quascirev.2016.02.017 |
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ftunivlisboa:oai:repositorio.ul.pt:10451/28173 2023-05-15T16:37:55+02:00 Spatial and temporal variability of periglaciation of the Iberian Peninsula Oliva, Marc Serrano, E. Gómez-Ortiz, A. González-Amuchastegui, M.J. Nieuwendam, Alexandre Palacios, D. Pérez-Alberti, A. Pellitero-Ondicol, R. Ruiz-Fernández, J. Valcárcel, M. Vieira, Goncalo Antoniades, D. 2017-06-26T10:27:01Z http://hdl.handle.net/10451/28173 https://doi.org/10.1016/j.quascirev.2016.02.017 eng eng Elsevier Quaternary Science Reviews 137 (2016) 176-199 0277-3791 http://hdl.handle.net/10451/28173 doi:10.1016/j.quascirev.2016.02.017 closedAccess Last glaciation Deglaciation Iberian Peninsula Periglacial processes Holocene Climate variability article 2017 ftunivlisboa https://doi.org/10.1016/j.quascirev.2016.02.017 2022-05-25T18:36:51Z 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 2000e2200 m in the northern ... Article in Journal/Newspaper Ice permafrost Universidade de Lisboa: repositório.UL Quaternary Science Reviews 137 176 199 |
institution |
Open Polar |
collection |
Universidade de Lisboa: repositório.UL |
op_collection_id |
ftunivlisboa |
language |
English |
topic |
Last glaciation Deglaciation Iberian Peninsula Periglacial processes Holocene Climate variability |
spellingShingle |
Last glaciation Deglaciation Iberian Peninsula Periglacial processes Holocene Climate variability Oliva, Marc Serrano, E. Gómez-Ortiz, A. González-Amuchastegui, M.J. Nieuwendam, Alexandre Palacios, D. Pérez-Alberti, A. Pellitero-Ondicol, R. Ruiz-Fernández, J. Valcárcel, M. Vieira, Goncalo Antoniades, D. Spatial and temporal variability of periglaciation of the Iberian Peninsula |
topic_facet |
Last glaciation Deglaciation Iberian Peninsula Periglacial processes Holocene Climate variability |
description |
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 2000e2200 m in the northern ... |
format |
Article in Journal/Newspaper |
author |
Oliva, Marc Serrano, E. Gómez-Ortiz, A. González-Amuchastegui, M.J. Nieuwendam, Alexandre Palacios, D. Pérez-Alberti, A. Pellitero-Ondicol, R. Ruiz-Fernández, J. Valcárcel, M. Vieira, Goncalo Antoniades, D. |
author_facet |
Oliva, Marc Serrano, E. Gómez-Ortiz, A. González-Amuchastegui, M.J. Nieuwendam, Alexandre Palacios, D. Pérez-Alberti, A. Pellitero-Ondicol, R. Ruiz-Fernández, J. Valcárcel, M. Vieira, Goncalo Antoniades, D. |
author_sort |
Oliva, Marc |
title |
Spatial and temporal variability of periglaciation of the Iberian Peninsula |
title_short |
Spatial and temporal variability of periglaciation of the Iberian Peninsula |
title_full |
Spatial and temporal variability of periglaciation of the Iberian Peninsula |
title_fullStr |
Spatial and temporal variability of periglaciation of the Iberian Peninsula |
title_full_unstemmed |
Spatial and temporal variability of periglaciation of the Iberian Peninsula |
title_sort |
spatial and temporal variability of periglaciation of the iberian peninsula |
publisher |
Elsevier |
publishDate |
2017 |
url |
http://hdl.handle.net/10451/28173 https://doi.org/10.1016/j.quascirev.2016.02.017 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
Quaternary Science Reviews 137 (2016) 176-199 0277-3791 http://hdl.handle.net/10451/28173 doi:10.1016/j.quascirev.2016.02.017 |
op_rights |
closedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2016.02.017 |
container_title |
Quaternary Science Reviews |
container_volume |
137 |
container_start_page |
176 |
op_container_end_page |
199 |
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1766028217950404608 |