Environmental evolution in Sierra Nevada (South Spain) since the Last Glaciation, based on multi-proxy records

Oliva, Marc; Ortíz, Antonio Gómez; Palacios, David; Franch, Ferran Salvador; Catarineu, Montserrat Salvà

doi:10.1016/j.quaint.2014.02.009

Cited by 40 publications

(34 citation statements)

References 61 publications

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“…No absolute dating exists for these morphologies, making it difficult to establish the chronology of their formation. Relevant information is only available for La Caldera, with 14.7 ka, which may be considered coherent if we take into account that for the adjacent Rio Seco cirque a soil formation has been detected at 12.9 ka BP (Oliva, 2009;Oliva et al, 2014), suggesting that this glacier cirque remained ice-free during that period.…”

Section: Figure 5 Location and Results Of The Datings In Some Areas mentioning

confidence: 99%

“…Abundant geomorphological information on these valleys is available (Gómez-Ortiz, 2002) as well as an absolute chronology of their glacial evolution. Of particular interest here is the updated research by Oliva et al (2014) which compiles the results obtained by absolute dating techniques used up to the present in Sierra Nevada as a whole, including:…”

Section: Methodsmentioning

confidence: 99%

“…This enabled a first approach to a precise timeline of glacial records (moraine deposits and abrasion surfaces in valleys and cirques) using cosmogenic techniques ( 36 Cl) . In addition, Holocene paleoenvironmental evolution was also approached through sedimentological analyses (lakes and solifluction lobes) and 14 C radiocarbon dating (Oliva, 2009;Oliva et al, 2011Oliva et al, , 2014. In recent years, with the support of historical documentation and morphological records, the recent evolution of the historical glaciation of the Sierra linked to the LIA has also been confirmed and its spatial extension defined .…”

Section: Study Areamentioning

confidence: 98%

“…These climatic conditions suggest that periglacial processes characterize the geomorphic dynamics in the highest lands in Sierra Nevada. Thus, in general terms, the area currently affected today by periglacial activity coincides with the predominantly glaciated surface during the Last Glaciation (Gómez- Ortiz and Salvador-Franch, 1992;Oliva et al, 2014). The current characteristic landscape of these mountain areas is predominantly bare ground or sparse vegetation as open cover, except in topographical depressions well supplied by late snowmelt waters, where grasslands with multiple endemisms are distributed (Molero Mesa and Pérez Raya, 1987).…”

Section: Study Areamentioning

confidence: 99%

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The deglaciation of Sierra Nevada (Spain), synthesis of the knowledge and new contributions

Gómez‐Ortiz¹,

Oliva²,

Palacios³

et al. 2015

CIG

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Section: Figure 5 Location and Results Of The Datings In Some Areas mentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 98%

Section: Study Areamentioning

confidence: 99%

See 2 more Smart Citations

The deglaciation of Sierra Nevada (Spain), synthesis of the knowledge and new contributions

Gómez‐Ortiz¹,

Oliva²,

Palacios³

et al. 2015

CIG

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“…Así, Gómez-Ortiz et al (2012) concluyen, a partir de dataciones con 10 Be de cinco umbrales rocosos, que la deglaciación alcanzó las paredes de los circos de los diferentes valles entre 15,4 y 13,2 ka BP. La formación de suelo datada por radiocarbono en 12,9 ka BP en el circo de Río Seco sugiere que incluso las áreas de cabecera estaban ya libres de hielo (Oliva et al, 2014;Gómez-Ortiz et al, 2015). El hecho más significativo fue la formación de glaciares rocosos a finales del Dryas Antiguo.…”

Section: Sierra Nevadaunclassified

Evidencias de actividad glaciar durante el Dryas reciente (12,9-11,7 ka BP) en la Península Ibérica

García‐Ruiz¹,

Palacios²,

González-Sampériz³

et al. 2016

CyG

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The Younger Dryas (GS-1, entre 12,9 y 11,7 ka BP) was characterized by a remarkable declining in temperature at a global scale. The consequence was a moderate re-advance of glaciers that also affected the main ranges of the Iberian Peninsula. This paper reviews the available information on the location, evolution and extent of such glaciers. The geomorphological activity during the Younger Dryas in the Iberian Peninsula has been identified throughout the presence of morainic deposits (dated in most cases with cosmogenic exposure ages), rocky thresholds polished by the ice, and rock glaciers. The best examples of Younger Dryas moraines were found in the Central Pyrenees, with short ice tongues of up to 4 km in length in the highest massifs and a number of glacial cirques. There is also evidence of small cirque glaciers in the Cantabrian Range and the Central System Range (Gredos and Guadarrama sierras), as deduced by rocky thresholds and morainic deposits close to cirque headwalls. Conversely, in Sierra Nevada (southernmost sector of the Iberian Peninsula) the only evidence of the Younger Dryas is the presence of rock glaciers that were developed during the Oldest Dryas and survived during the Younger Dryas.

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Glacial oscillations during the Bølling–Allerød Interstadial–Younger Dryas transition in the Ruda Valley, Central Pyrenees

Fernandes

Oliva

Vieira

et al. 2021

J Quaternary Science

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The Upper Garonne Basin included the largest glacial system in the Pyrenees during the last glacial cycle. Within the long-term glacial retreat during Termination-1 (T-1), glacier fluctuations left geomorphic evidence in the area. However, the chronology of T-1 glacial oscillations on the northern slopes of the Central Pyrenees is still poorly constrained. Here, we introduce new geomorphological observations and a 12-sample dataset of 10 Be cosmic-ray exposure ages from the Ruda Valley. This U-shaped valley, surrounded by peaks exceeding 2800 m a.s.l., includes a sequence of moraines and polished surfaces that enabled a reconstruction of the chronology of the last deglaciation. Following the maximum ice extent, warmer conditions prevailing at ~15-14 ka, during the Bølling-Allerød (B-A) Interstadial, favoured glacial retreat in the Ruda Valley. Within the B-A, glaciers experienced two phases of advance/stillstand with moraine formation at 13.5 and 13.0 ka. During the early Younger Dryas (YD), glacial retreat exposed the highest surfaces of the Saboredo Cirque (~2300-2350 m) at 12.7 ka. Small glaciers persisted only inside the highest cirques (~2470 m), such as in Sendrosa Cirque, with moraines stabilising at 12.6 ka. The results of this work present the most complete chronology for Pyrenean glacial oscillations from the B-A to the YD.

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Environmental evolution in Sierra Nevada (South Spain) since the Last Glaciation, based on multi-proxy records

Cited by 40 publications

References 61 publications

The deglaciation of Sierra Nevada (Spain), synthesis of the knowledge and new contributions

The deglaciation of Sierra Nevada (Spain), synthesis of the knowledge and new contributions

Evidencias de actividad glaciar durante el Dryas reciente (12,9-11,7 ka BP) en la Península Ibérica

Glacial oscillations during the Bølling–Allerød Interstadial–Younger Dryas transition in the Ruda Valley, Central Pyrenees

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