2016
DOI: 10.17735/cyg.v30i1-2.48665
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La deglaciación de las áreas libres de hielo de las islas Shetland del Sur (Antártida). Ejemplos de Byers (Livingston) y Barton (King George)

Abstract: The process of deglaciation of the present-day ice-free environments in the Maritime Antarctica has profound geomorphological and ecological implications. However, the timing of glacier retreat is still poorly understood. This is the case of the deglaciated areas existing in Byers (Livingston Island) and Barton (King George Island) peninsulas. The dating of the basal sediments collected from different lakes in these two peninsulas allowed inferences of the ages of formation of each lake. The integration of the… Show more

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Cited by 3 publications
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“…The age of deglaciation of the northern sector of the Fildes Peninsula shows a very similar pattern to that observed at Byers Peninsula, the largest ice‐free area in the SSI and an area from where further evidence of past environmental evolution is available. Here, lake sediment records revealed that the central plateau was deglaciated between 8.3 and 5.1 ka cal BP and that the ice cap has been relatively stable over the last two millennia, with the formation of a polygenic moraine (Oliva, Antoniades, Giralt, Granados, Pla‐Rabes, Toro, Liu, et al, 2016; Oliva, Antoniades, Giralt, Granados, Pla‐Rabes, Toro, & Sanjurjo, 2016; Toro et al, 2013). This peninsula is one of the few areas of the SSI where CRE has been directly applied to Holocene glacial records; results indicated the occurrence of two Neoglacial advances of the southern flank of the Rotch Dome Glacier as revealed by the clustering 36 Cl ages of the external line of erratic boulders (4.6 ± 0.8 ka) and one internal moraine ridge (1.0 ± 0.3 ka) near the edges of the ice cap (Palacios et al, 2020).…”
Section: Discussionmentioning
confidence: 90%
“…The age of deglaciation of the northern sector of the Fildes Peninsula shows a very similar pattern to that observed at Byers Peninsula, the largest ice‐free area in the SSI and an area from where further evidence of past environmental evolution is available. Here, lake sediment records revealed that the central plateau was deglaciated between 8.3 and 5.1 ka cal BP and that the ice cap has been relatively stable over the last two millennia, with the formation of a polygenic moraine (Oliva, Antoniades, Giralt, Granados, Pla‐Rabes, Toro, Liu, et al, 2016; Oliva, Antoniades, Giralt, Granados, Pla‐Rabes, Toro, & Sanjurjo, 2016; Toro et al, 2013). This peninsula is one of the few areas of the SSI where CRE has been directly applied to Holocene glacial records; results indicated the occurrence of two Neoglacial advances of the southern flank of the Rotch Dome Glacier as revealed by the clustering 36 Cl ages of the external line of erratic boulders (4.6 ± 0.8 ka) and one internal moraine ridge (1.0 ± 0.3 ka) near the edges of the ice cap (Palacios et al, 2020).…”
Section: Discussionmentioning
confidence: 90%