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5 th Int. Workshop on Ice Caves (IWIC – V) Barzio (LC), Valsassina, Grigna and Milano, September 16 – 23, 2012 Volume of Abstracts PCR amplified inserts, identifying various restriction patterns, and the selected clones were sequenced. In progress sequence identification and phylogenetic analysis of the bacterial species present in this 900 years old ice revealed some yet unidentified species, several species present in other cold habitats and others common to mesophilic environments. The total DNA was extracted from ice samples of various locations, and 16S/18S-rRNA pyrosequencing of total DNA from and DGGE analysis of SSU-rRNA amplicons are currently underway for identifying the microbial biodiversity and its chronological distribution in ice sediments from Scarisoara cave THE INTERACTION OF PERMAFROST AND KARST FEATURES AS SEEN AT A SMALL LAKE SYSTEM AT KAPP LINNÉ, WEST CENTRAL SPITSBERGEN Cohen S. M. 1,2 & Christiansen H. H. 1,2 1 Arctic Geology Department, University Centre in Svalbard, Norway 2 Department of Geosciences, University of Oslo, Oslo, Norway Traditionally the permafrost in high arctic Svalbard is thought to be continuous, however, at Kapp Linné in western Spitsbergen, geomorphologically distinct geologically determined karst landforms exist, pointing to the existence of holes in the permafrost. One aspect of permafrost which has not been discussed heavily in literature, particularly since the 1980s, is the interaction of permafrost and karst systems. This study focuses on the dual presence of karst features, as well as permafrost and periglacial features, encountered at Kapp Linné. The study of karst formations and processes in Arctic and High-Arctic permafrost environments is limited to few studies. Ford and Williams (2007) established a model for karst development in permafrost areas based on studies in the Canadian Arctic. The model is general and limits karst development to the seasonal active layer, or to shallow taliks, unfrozen zones within permafrost, directly beneath bodies of water. Aim: The purpose of this study is to investigate the dynamics occurring due to the interaction of periglacial and karst features. This unique pairing is encountered at Kapp Linné. Here, a set of small lakes is situated on raised beach terraces above the coast line. Previous studies present evidence of water draining into the subsurface of a permafrost zone, presumably into normally impermeable areas, below the melt-season induced active layer. With significant technological improvements in the last 30 years, new monitoring techniques lend themselves to establishing an up-to-date understanding of the controls on the development of this special landscape. Due to a growing interest regarding permafrost monitoring, this study will investigate a specific aspect of permafrost interaction and dependence on 51
5 th Int. Workshop on Ice Caves (IWIC – V) Barzio (LC), Valsassina, Grigna and Milano, September 16 – 23, 2012 Volume of Abstracts the surrounding climatic, topographic, geomorphological and geological conditions. Methods: Field campaigns are planned for spring and summer 2012. These include: geomorphological mapping, establishing ground and water temperature records, conductivity testing with a conductivity temperature depth (CTD) monitor, ground penetrating radar (GPR) transects to study the subsurface, analyzing ground temperature records, and analyzing satellite images of the area. Results : Results from a preliminary 2010 geomorphological mapping study conclude that lake water is actively draining into the subsurface during the melt season. The amount of water loss cannot be accounted for by surface drainage or evaporation loss alone, leaving the subsurface as the only option for the distinct lowering of water levels. Shallow active layer ground temperature records are available for some locations around the lake system. The records shows that ground temperature from locations around the lakes are higher than in all other periglacial landforms with continuous permafrost in Svalbard. Results from the 2010 study and the temperature evidence established an interest to continue the project. Initial results from the 2012 field campaigns will be available by fall 2012. Preliminary Conclusions: Current results conclude that a karst system allows water to actively drain into a permafrost zone in the subsurface at Kapp Linné. The planned field measurements from 2012 will incorporate the earlier mentioned methods to draw further conclusions of the status of the processes occurring both on the surface and subsurface at the karst lakes. FIRST THERMAL, MORPHOLOGICAL AND ICE TYPES STUDIES IN THE PEÑA CASTIL ICE CAVE (PICOS DE EUROPA, CANTABRIAN MOUNTAINS. NORTHERN SPAIN) Gómez Lende M. 1 & Serrano Cañadas E. 2 1 Dpto. Geografía. Universidad de Cantabria. Santander, Spain. (manuelglende@hotmail.com) 2 Dpto. Geografía. Universidad de Valladolid, Valaldolid, Spain The Picos de Europa is the highest massif in the Atlantic Mountain of Southwestern Europe. It reaches the high mountain belt (between 1800- 2650 m a.s.l) and it is characterized by a nivoperiglacial morphodymanic and a periglacial one above 2200 m.a.s.l, where the snow and cold shape inherited glaciokarstic landscape. Present day there are not glaciers, but stil remain three ice-patches. The topography, climatic conditions, thick carboniferous limestones and significant altitude differences make possible an important endokarstic development, mainly vertical, in which some of 52
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Page 4: President 5 th Int. Workshop on Ice
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Page 13 and 14: Dear Participants, we are very plea
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