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2 Pags. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License., In the frame of the IAEA INT5153 project a two week field survey of the Parón Lake area was carried out in October 2016 to recognize the main glacial landforms which had direct connectivity to the drainage system into the lake. The main glacial landforms, which included moraines, colluvium, glacio-fluvial terraces and alluvial fans that had developed after different stages of glacier retreat from the Last Glacial Maximum to the Little Ice Age, were mapped. For identifying the main provenance of sediments, a total of 40 composite soil and sediment samples (from 0-3cm depth) were collected as sources from representative sites on the main glacial landforms. In addition a total of 9 sediment mixtures including composite channel bed sediments and suspended sediments were collected.

1 .pdf copy (1 Pag.) of the abstract published by the Organization. © Author(s) 2019. CC Attribution 4.0 license., In ice-free surfaces of King George Island (South Shetland Islands, Maritime Antarctica) the main formations along topographic chronosequences consist of weathered volcanic rock outcrops, marine platforms, deposits of glacial materials such as moraines, and present day beaches. In relation with recent glacier retreat processes of sediment redistribution in unstable paraglacial environments are highly active in the area. Together with soil particles the mobilization of associated soil organic carbon (SOC) can be further enhanced under conditions of climate change by melting snow and ice. In February 2015 we conducted a selective sampling of reference sites on marine platforms and moraines to be compared with surface sediments recently deposited in lakes on the platforms and in the proglacial environment of the Bellingshausen Ice Dome.