Late Glacial-early holocene vegetation and environmental changes in the western Iberian Central System inferred from a key site: The Navamuño record, Béjar range (Spain)

López‐Sáez, José Antonio; Carrasco, Rosa M.; Turú, Valentí; Ruíz-Zapata, Blanca; Gil-García, María José; Luelmo-Lautenschlaeger, Reyes; Pérez-Díaz, Sebastián; Sánchez, Francisca Alba; Schaad, Daniel Abel; Ros, Xavier; Gilsanz, Javier de Pedraza

doi:10.1016/j.quascirev.2020.106167

Cited by 30 publications

(19 citation statements)

References 146 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results suggest (i) denser deciduous oak woodlands (trees and shrubs values between 88.4 and 90%), and (ii) the first arrival of beech near the site as a result of climatic warming and increased humidity 77 . Thus, the Iberian Central System is confirmed as a refuge zone for this taxon during much of the Late Pleistocene, including the LGM 78 – 80 , as has been also documented in other mountains in northern Iberia 81 , 82 . This finding represents the first record of beech from the LGM in the Iberian Central System.…”

Section: Resultssupporting

confidence: 66%

First modern human settlement recorded in the Iberian hinterland occurred during Heinrich Stadial 2 within harsh environmental conditions

Alcaraz‐Castaño

Alcolea-González

Andrés-Herrero

et al. 2021

Sci Rep

View full text Add to dashboard Cite

As the south-westernmost region of Europe, the Iberian Peninsula stands as a key area for understanding the process of modern human dispersal into Eurasia. However, the precise timing, ecological setting and cultural context of this process remains controversial concerning its spatiotemporal distribution within the different regions of the peninsula. While traditional models assumed that the whole Iberian hinterland was avoided by modern humans due to ecological factors until the retreat of the Last Glacial Maximum, recent research has demonstrated that hunter-gatherers entered the Iberian interior at least during Solutrean times. We provide a multi-proxy geoarchaeological, chronometric and paleoecological study on human–environment interactions based on the key site of Peña Capón (Guadalajara, Spain). Results show (1) that this site hosts the oldest modern human presence recorded to date in central Iberia, associated to pre-Solutrean cultural traditions around 26,000 years ago, and (2) that this presence occurred during Heinrich Stadial 2 within harsh environmental conditions. These findings demonstrate that this area of the Iberian hinterland was recurrently occupied regardless of climate and environmental variability, thus challenging the widely accepted hypothesis that ecological risk hampered the human settlement of the Iberian interior highlands since the first arrival of modern humans to Southwest Europe.

show abstract

Section: Resultssupporting

confidence: 66%

First modern human settlement recorded in the Iberian hinterland occurred during Heinrich Stadial 2 within harsh environmental conditions

Alcaraz‐Castaño

Alcolea-González

Andrés-Herrero

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In this paleoglacier, a complete sequence was obtained from the LGM to the Holocene with wellmarked Late Glacial stages and correlated with different mountains at the peninsular and continental level (Carrasco et al, 2015). This record, validated with 14 C dating and pollen studies (López-Sáez et al, 2020;Turu et al, 2018), constitutes the first direct evidence of complex glacial activity during the Late Glacial in the Iberian Central System. Recently, a set of cosmogenic ages obtained in previously glaciated valleys of the Sierra de Gredos have been summarized in Oliva et al (2019), who also recalculated all the available chronological data of the Iberian Peninsula considering the most accurate and up-to-date TCN production rates.…”

Section: Previous Workmentioning

confidence: 60%

Glacial geomorphology of the High Gredos Massif: Gredos and Pinar valleys (Iberian Central System, Spain)

et al. 2020

Self Cite

View full text Add to dashboard Cite

We present a detailed geomorphological map of the landform assemblages originated by the two major paleoglaciers of the Sierra de Gredos mountain range in the Spanish Iberian Central System. Based on previous works, our map focused on the features formed by Gredos and Pinar paleoglaciers during the last glaciation and subsequent glacial events. Based on a remote sensing analysis and exhaustive field surveys, we identified with great accuracy the local distribution of glacial, periglacial, mass movement, structural, fluvial, and lacustrine features. We recognized three main glacial geomorphological formations representing: (i) the maximum glacial extension reached (peripheral deposits); (ii) the culmination of glacial conditions (principal moraines) and (iii) the local glacial withdrawal (internal deposits). Our map offers a renewed spatial framework on which to conduct higher-resolution glacial chronologies, especially of Late Glacial and Holocene glacial activity, providing key information for performing future paleoclimatic reconstructions of the northern hemisphere mid-latitudes.

show abstract

“…The average age of deglaciation taking into account all these cirques is 15.1 ± 1.3 ka (n = 21) (Table 4 and Fig.9.A). According to marine and terrestrial records from the Iberian Peninsula and surrounding areas (Fletcher et al, 2010a, 2010bLópez-Sáez, et al, 2020), a sudden temperature increase that led to values similar to present is recorded at the beginning of B-A. The accelerated deglaciation of the cirques probably during the B-A has been detected in many other cirques in Iberian mountains (Palacios et al, 2017b), such as the Central Range (Palacios et al, 2011;Palacios et al, 2012aPalacios et al, , 2012bCarrasco et al, 2015), Iberian Range (Fernández-Fernández et al, 2017;García-Ruiz et al, 2020a), Central Cantabrian Mountains (Rodríguez-Rodríguez et al, 2017) and the Pyrenees (Pallàs et al, 2006(Pallàs et al, , 2010Delmas, 2015;Palacios et al, 2017a;Crest et al, 2017;Tomkins et al, 2018;Andrés et al, 2019;Jomelli et al, 2020).…”

Section: The Typology Of the Cirques In Sierra Nevada In The Context mentioning

confidence: 96%

“…According to the 9 cirques with dated moraines, the glaciers in the YD never exceeded the limits of the cirque, with lengths between 500 and 1200 m (Table 4). The abrupt warming after the YD cold period is evidenced in marine and terrestrial records of the regional Iberian context (Fletcher et al, 2010a, 2010bGarcía-Ruiz et al, 2016;López-Sáez, et al, 2020).…”

Section: The Typology Of the Cirques In Sierra Nevada In The Context mentioning

confidence: 98%

“…In the Central Range, small cirques in the massifs of Guadarrama (Palacios et al, 2011(Palacios et al, , 2012a(Palacios et al, , 2012bCarrasco et al, 2016) and Gredos (Domínguez-Villar, 2013;Carrasco et al, 2013Carrasco et al, , 2015 include moraine complexes from the LLGM to the OD, YD and even the Holocene, depending on the altitude and prevailing aspect of the cirques. Besides, a detailed study of the peatbogs from a glacial cirque in Gredos has provided valuable palaeoclimatic information from the deglaciation from the OD to the present (López-Sáez, et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Climate sensitivity and geomorphological response of cirque glaciers from the late glacial to the Holocene, Sierra Nevada, Spain

Palacios

Oliva

Gómez‐Ortiz

et al. 2020

Quaternary Science Reviews

View full text Add to dashboard Cite

Through a detailed geomorphological study, including thourough mapping of the geomorphic features as well as 10 Be Cosmic-Ray Exposure (CRE) dating, the geomorphological evolution of the Mulhacén cirque since the maximum ice extent of the last glacial cycle until nowadays was determined. This glacial cirque is shaped on the northern face of the Mulhacén peak (3479 m a. .l., 37 03 12 N / 3 18 41 W), Sierra Nevada, southern Spain. It includes several depositional and erosional glacial landforms that allowed reconstructing its environmental evolution since the last glacial cycle. Furthermore, the sequence of glacial oscillations from this site was compared to that of other cirques of the massif, evidencing that: (i) new glaciers formed in these cirques during the Younger Dryas (YD), and (ii) disappeared at 11.7 ± 1.0 ka. Depending on the altitude, orientation and height of the cirque walls, the final deglaciation of the cirques generated a diversity of landscapes, including a wide range of glacial and periglacial landforms, such as polished surfaces, sequences of moraines, proto-rock glaciers or large rock glacier systems. No glaciers existed in the Sierra Nevada during the Middle Holocene. Only the cirques whose summits exceed 3300 m, are north-exposed and whose walls exceed 300 m high (i.e. Mulhacén and Veleta) hosted glaciers during Neoglacial phases, including the Little Ice Age (LIA) (approx. 1300-1850 CE). During these periods, climate oscillations favoured the formation of small glaciers in these cirques, which generated large moraine systems with either one polygenic ridge or a sequence of spaced frontal arcs. The existence of glaciers impeded the formation of permafrost-related Manuscript File Click here to vie linked References 2 landforms, such as rock glaciers and protalus lobes until the end of the LIA, when they started to form. These results are compared with the deglacial evolution in 55 cirques from Iberian mountains as well as from glacial cirques from other mid-latitude mountains and subpolar regions. The chronology of their deglaciation as well as the landforms generated during glacial retreat followed similar patterns, with no significant differences at regional scale. For each mountain range, the geomorphological diversity existing in each cirque depends on the local topographic characteristics although they formed during the same climatic phases.

show abstract

Late Glacial-early holocene vegetation and environmental changes in the western Iberian Central System inferred from a key site: The Navamuño record, Béjar range (Spain)

Cited by 30 publications

References 146 publications

First modern human settlement recorded in the Iberian hinterland occurred during Heinrich Stadial 2 within harsh environmental conditions

First modern human settlement recorded in the Iberian hinterland occurred during Heinrich Stadial 2 within harsh environmental conditions

Glacial geomorphology of the High Gredos Massif: Gredos and Pinar valleys (Iberian Central System, Spain)

Climate sensitivity and geomorphological response of cirque glaciers from the late glacial to the Holocene, Sierra Nevada, Spain

Contact Info

Product

Resources

About