The last deglaciation in the Picos de Europa National Park (Cantabrian Mountains, northern Spain)

Abstract

A sedimentological and geochemical study of the Lago Enol sequence (Cantabrian Mountains, Northern Spain) together with detailed geomorphological mapping provides a first record of glacier evolution and climate change over the last 40,000 years in the

Pleistocene glacial morphology and timing of last glacial cycle in cantabrian mountains (Northern Spain): new chronological data from the Asón area

“…Moreover, the lacustrine deposits filling the over-deepened trough at the end of the Enol Glacier in the Picos de Europa, provide dates that place the glacial maximum [38] prior to 38 14 C ka BP, although absolute dates have not been obtained for all the glacial deposits.…”

“…[28][29][30][31][32][33][34], the ages obtained from different glacial-related deposits and surfaces provide evidence of a Pyrenean last glacial maximum prior to 30 ka BP, although other age data also indicate its coincidence with the LGM [35]. The glaciation dates of the Cantabrian Mountains have also been obtained [36][37][38][39], including the southern slope of the Valnera Massif [40]. These age data indicate that the local last glacial maximum in the Cantabrian Mountains took place earlier than 35 ka BP.…”

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)

“…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.…”

Deglaciación en la Cordillera Cantábrica: modelo y evolución

“…Recent studies on distinct Cantabrian Mountain massifs have provided radiocarbon dates ( 14 C, AMS) in Redes, Sil Valley, Picos de Europa and Pas Mountains Jiménez-Sánchez et al, 2013;Jalut et al, 2010;Moreno et al, 2010;Serrano et al, 2011, Niewendam et al, 2015, and U/Th and optically stimulated luminescence (OSL) dates from the Fuentes Carrionas and Pas Mountains (Pellitero, 2011(Pellitero, , 2014Serrano et al, 2012;Frochoso et al, 2013). The glacial morphosequences analysed and available dates have facilitated a first approximation to the Late Pleistocene glacial chronology and deglaciation pattern in the Cantabrian Mountains, where three main Pleistocene glacial phases have been detected (Jiménez-Sánchez et al, 2013;Serrano et al, 2013a,b;Rodríguez-Rodríguez et al, 2014).…”

“…Only three evidences of the occurrence of a cold period can be correlated with the highest moraines, all of them in the Picos de Europa: (i) In the lacustrine deposits of Enol, Moreno et al (2010Moreno et al ( , 2011 have detected equilibrium in the Ca content between 14.5 and 13.5 ka and a cooling between 13.5-11.6 cal ka BP, indicating a cold and dry phase endorsed to the Younger Dryas. (ii) Serrano et al (2012) recorded a moderate minimum LOI in the lacustrine sediments of Áliva ca.…”