Palaeoenvironmental studies in NW Iberia (Cantabrian range): Vegetation history and synthetic approach of the last deglaciation phases in the western Mediterranean

Jalut, Guy; Turú, Valentí; Dedoubat, Jean-Jacques; Otto, Thierry; Ezquerra, Javier; Fontugne, Michel; Belet, Jean Marc; Bonnet, L.; Celis, Alipio J. García de; Vega, José María Redondo; Romaní, Juan Ramón Vidal; Santos, Luís

doi:10.1016/j.palaeo.2010.08.012

Cited by 107 publications

(98 citation statements)

References 64 publications

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“…Some paleoclimatic reconstructions from northern Iberia shows that the known as "Mystery Interval" (17,500-14,500 calyr BP; Denton et al, 2006), which embraces GS-2a and H-l, was colder and drier than the LGM over this region (Morellon et al, 2009;Moreno et al, 2010Moreno et al, , 2012, while chironomid-based quantitative reconstruction of July air temperatures from La Roya Lake shows that GS-2a was by far the coldest period of the last deglaciation (Munoz Sobrino et al, 2013). Other paleoecological records from northern Iberia record an increase in steppic taxa during this period and landscapes clearly dominated by steppic communities (Allen et al, 1996;Penalba et al, 1997;GonzalezSamperiz et al, 2006;Munoz Sobrino et al, 2007;Jalut et al, 2010;Munoz Sobrino et al, 2013). Nevertheless, tree representation did not decrease in many records from these mountainous areas (Ruiz Zapata et al, 2002;Garcia-Roves, 2007;Munoz Sobrino et al, 2007) to such low values as they did in Ayoo, which indicates that moisture conditions for tree growth must have been more limiting in the inland plateau than in the surrounding mountains.…”

Section: The Landscapes Of the Northern Iberian Plateau During The Lamentioning

confidence: 98%

“…El Maillo (Morales-Molino etal, 2013, 13. Charco da Candieira van Leeuwen, 1995,1997;Connor et al, 2012), 14 Cmintanar de la Sierra (Penalba et al, 1997) (Jalut et al, 2010), 20 Ronanzas peat bog (Ortiz et al, 2010). At the bottom right is an aerial photograph of the study site, very close to Ayoo de Vidriales town and surrounded predominantly by cereal crops.…”

Section: Study Areamentioning

confidence: 99%

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Vegetation and fire history since the last glacial maximum in an inland area of the western Mediterranean Basin (Northern Iberian Plateau, NW Spain)

Morales‐Molino

García-Antón

2014

Quat. res.

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We reconstructed vegetation responses to climate oscillations, fire and human activities since the last glacial maximum in inland NW Iberia, where previous paleoecological research is scarce. Extremely sparse and open vegetation composed of steppic grasslands and heathlands with scattered pioneer trees suggests very cold and dry conditions during the Oldest Dryas, unsuitable for tree survival in the surroundings of the study site. Slight woodland expansion during the Bolling/Allerod was interrupted by the Younger Dryas cooling. Pinewoods dominated for most of the early Holocene, when a marked increase in fire activity occurred. Deciduous trees expanded later reaching their maximum representation during the mid-Holocene. Enhanced fire activity and the presence of coprophilous fungi around 6400-6000 cal yr BP suggest an early human occupation around the site. However, extensive deforestation only started at 4500 calyr BP, when fire was used to clear the tree canopy. Final replacement of woodlands with heathlands, grasslands and cereal crops occurred from 2700 cal yr BP onwards due to land-use intensification. Our paleoecological record can help efforts aimed at restoring the natural vegetation by indicating which communities were dominant at the onset of heavy human impact, thus promoting the recovery of currently rare oak and alder stands.

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Section: The Landscapes Of the Northern Iberian Plateau During The Lamentioning

confidence: 98%

Section: Study Areamentioning

confidence: 99%

Vegetation and fire history since the last glacial maximum in an inland area of the western Mediterranean Basin (Northern Iberian Plateau, NW Spain)

Morales‐Molino

García-Antón

2014

Quat. res.

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“…), and the presence of numerous blocks of sandstone positioned between the limestone ridges that surround the polje to the N (Fig. 3C) also indicate a peak ice thickness of 60 to 70 m. These thicknesses are relatively modest, particularly when compared with other nearby Cantabrian valleys (Jalut et al 2010;Santos-González et al 2013a;Serrano et al 2013;Rodríguez-Rodríguez et al 2015), but they are sufficient to demonstrate the existence of the paleo-glacial dynamics in the area and their influence on the morphology.…”

Section: Methodsmentioning

confidence: 87%

“…The infiltration of the subglacial water into the karst network reduces overland flow, which modifies the discharges of the pro-glacial streams and the sediments they carry. Therefore, when glacier dynamics converge with a subglacial karst (Žebre & Stepišnik 2015), a type of landscape that combines the reliefs derived from both processes, named glaciokarst, is generated (Ford 1979;Smart 2004;Žebre & Stepišnik 2015).During cold stages of the Pleistocene, these dynamics has been common in the calcareous mountains at middle latitudes (Johnson & Stieglizt 1990;Bodgdan & Leszek 1999;Goldie 2006;Lepirica 2008;Hughes et al 2010;Telbisz et al 2011;Adamson et al 2014;Stepišnik 2014;Žebre & Stepišnik 2015;Žebre et al 2016), and also in limestone outcrops of the Cantabrian Mountains were the glacial processes were intense (Jalut et al 2010;Serrano et al 2012Serrano et al , 2013Frochoso et al 2013;Jiménez-Sánchez et al 2013;Santos-González et al 2013a;Gómez-Villar et al 2015;Rodríguez-Rodríguez et al 2016;Ruiz-Fernández et al 2016). However, in lower zones where this association does not occur, karst processes are dominant.…”

Section: R B González-gutiérrez J Santos-gonzález a Gómez-villamentioning

confidence: 99%

Glaciokarst landforms in the Siera de los Grajos, Babia and Luna natural park (Cantabrian Mountains, NW Spain)

Gutiérrez

González

Gómez-Villar

et al. 2017

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UDC 551. 435.4:551.435.8(460.13) Rosa Blanca González-Gutiérrez, Javier Santos-González, Amelia Gómez-Villar, Eduardo Alonso-Herrero, Alipio García-de Celis, Martín Cano & José María Redondo-Vega: Glaciokarst landforms in the Siera de los Grajos, Babia and Luna natural park (Cantabrian Mountains, NW Spain) Landforms resulting from the interaction between paleo-glaciers and karst are studied by using the Sierra de los Grajos (Cantabrian Mountains) as a model. This area contains glacial landforms that have not interested geomorphologists due to their low altitude (Peña Castillo is about 1857 m a.s.l.), the absence of glacial cirques and the scarcity of large moraines. However, the prevalence of groundwater flow and chemical dissolution has favoured the preservation of glacial landforms. Lateral and frontal moraines show three main glacial stages and other minor glacier stabilization phases, with the paleo-ELA oscillating between 1650 and 1760 m. Moraines are combined with depressions and sinks resulting from subglacial karstic drainage. This convergence of forms and processes is an exception in the Cantabrian Mountains, where postglacial erosion has usually eroded the frontal moraines and the proglacial sediments. In the case of the Sierra de los Grajos, despite the underground drainage and preservation of many glacial deposits on karstic landforms, an outwash-plain was formed. These proglacial sediments and others from non-karstified areas filled the depressions of the preglacial terrain located at their edges. The main glaciokarstic landforms have been mapped and a sedimentological analysis of the outwash plain was made in order to reconstruct the glacial dynamics of this area. Key words: glaciokarst landforms, glacial geomorphology, karst geomorphology, geomorphological mapping, Cantabrian Mountains. IzvlečekUDK 551.435.4:551.435.8(460.13) Rosa Blanca González-Gutiérrez, Javier Santos-González, Amelia Gómez-Villar, Eduardo Alonso-Herrero, Alipio García-de Celis, Martín Cano & José María Redondo-Vega: Glaciokraški relief na območju Sierra de los Grajos v parku Babia in luna (Kantabrijsko gorovje, SZ Španija) Na območju Sierra de los Grajos (Kantabrijsko gorovje) smo raziskovali relief, ki je v preteklosti nastal z medsebojnim vplivanjem kraških in ledeniških procesov. Zaradi nizke nadmorske višine (Peña Castillo je le 1857 m nad morjem) ter odsotnosti velikih moren in krnic to območje geomorfologov do sedaj ni posebej zanimalo. Prav kraški procesi in z njimi povezano podzemno odtekanje so tu omogočili ohranitev ledeniških oblik. Bočne in čelne morene kažejo na tri glavne faze poledenitev in več manjših faz stabilizacije ledenikov z ravnovesno mejo (ELA) med 1650 in 1760 m.n.m. Morene so pogosto vezane na kraške globeli. Glaciokraške pojave najdemo le na tem območju Kantabrijskega gorovja, kjer je sicer poledeniška erozija odstranila čelne morene in proglacialne sedimente. Kljub podzemnemu odtoku in ohranitvi številnih ledeniških sedimentov na kraškem reliefu se je na Sierra de los Grajos oblikoval predle...

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“…Entre los trabajos más recientes, se pueden destacar, entre otros, algunos análisis sobre circos (Ruiz-Fernández et al, 2009;Gómez-Villar et al, 2015), sobre depósitos glaciares (Santos-González et al, 2013b), la altitud de la línea de equilibro glaciar (Serrano Cañadas y González Trueba, 2004;Santos-González et al, 2013a) o sobre la cronología glaciar (García-Ruiz et al, 2010;Jalut et al, 2010;Frochoso et al, 2013;Jiménez-Sánchez et al, 2013;Moreno et al, 2010;Serrano et al, 2013;Rodríguez-Rodríguez et al, 2015;Ruiz-Fernández et al, 2016). A pesar de esos esfuerzos, lo cierto es que aún quedan muchos valles que apenas han sido analizados en detalle y en otros muchos no se conocen con precisión los límites que alcanzó la glaciación.…”

Section: Estudios Sobre Glaciarismo En El Alto Pormaunclassified

Influencia de la glaciación en la red de drenaje: el ejemplo de los valles de Respina y Rebueno (Alto Porma, Cordillera Cantábrica, noroeste de España)

Danis-Álvarez

González

2017

CIG

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Palaeoenvironmental studies in NW Iberia (Cantabrian range): Vegetation history and synthetic approach of the last deglaciation phases in the western Mediterranean

Cited by 107 publications

References 64 publications

Vegetation and fire history since the last glacial maximum in an inland area of the western Mediterranean Basin (Northern Iberian Plateau, NW Spain)

Vegetation and fire history since the last glacial maximum in an inland area of the western Mediterranean Basin (Northern Iberian Plateau, NW Spain)

Glaciokarst landforms in the Siera de los Grajos, Babia and Luna natural park (Cantabrian Mountains, NW Spain)

Influencia de la glaciación en la red de drenaje: el ejemplo de los valles de Respina y Rebueno (Alto Porma, Cordillera Cantábrica, noroeste de España)

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