Evidence of a two-fold glacial advance during the last glacial maximum in the Tagliamento end moraine system (eastern Alps) Export

@article{citeulike:1595805, abstract = {The glacial history of the Tagliamento morainic amphitheater (southeastern Alpine foreland, Italy) during the last glacial maximum (LGM) has been reconstructed by means of a geological survey and drillings, radiocarbon dating and pollen analysis in the amphitheater and in the sandur. Two phases of glacial culmination, separated by a distinct recession, are responsible for glacial landforms and related sediments in the outer part of the amphitheater. The age of the younger advance fits the chronology of the culmination of the last glaciation in the Alps, well established between 24 and 21 cal ka BP (20 to 17.5 14C ka BP), whereas the first pulse between 26.5 and 23 cal ka BP (22 to 21 14C ka BP), previously undated, was usually related to older (pre-LGM) glaciations by previous authors. Here, the first pulse is the most extensive LGM culmination, but is often buried by the subsequent pulse. The onset and final recession of the late Wurm Alpine glaciation in the Tagliamento amphitheater are synchronous with the established global glacial maximum between 30 and 19 cal ka BP. The two-fold LGM glacial oscillation is interpreted as a millennial-scale modulation within the late Wurm glaciation, caused by oscillations in inputs of southerly atmospheric airflows related to Dansgaard-Oeschger cycles. Phases of enhanced southerly circulation promoted increased rainfall and ice accumulation in the southern Alps.}, author = {Monegato, Giovanni and Ravazzi, Cesare and Donegana, Marta and Pini, Roberta and Calderoni, Gilberto and Wick, Lucia}, citeulike-article-id = {1595805}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.yqres.2007.07.002}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6WPN-4PF0XDF-1/2/50ab991649d1c50e8c541fd49cafabc4}, doi = {10.1016/j.yqres.2007.07.002}, journal = {Quaternary Research}, keywords = {200708, alpes, climat, dernier-maximum-glaciaire, italie}, month = {September}, number = {2}, pages = {284--302}, posted-at = {2007-08-27 09:35:31}, priority = {2}, title = {Evidence of a two-fold glacial advance during the last glacial maximum in the Tagliamento end moraine system (eastern Alps)}, url = {http://dx.doi.org/10.1016/j.yqres.2007.07.002}, volume = {68}, year = {2007} }

TY - JOUR ID - citeulike:1595805 L3 - citeulike-article-id:1595805 N2 - The glacial history of the Tagliamento morainic amphitheater (southeastern Alpine foreland, Italy) during the last glacial maximum (LGM) has been reconstructed by means of a geological survey and drillings, radiocarbon dating and pollen analysis in the amphitheater and in the sandur. Two phases of glacial culmination, separated by a distinct recession, are responsible for glacial landforms and related sediments in the outer part of the amphitheater. The age of the younger advance fits the chronology of the culmination of the last glaciation in the Alps, well established between 24 and 21 cal ka BP (20 to 17.5 14C ka BP), whereas the first pulse between 26.5 and 23 cal ka BP (22 to 21 14C ka BP), previously undated, was usually related to older (pre-LGM) glaciations by previous authors. Here, the first pulse is the most extensive LGM culmination, but is often buried by the subsequent pulse. The onset and final recession of the late Wurm Alpine glaciation in the Tagliamento amphitheater are synchronous with the established global glacial maximum between 30 and 19 cal ka BP. The two-fold LGM glacial oscillation is interpreted as a millennial-scale modulation within the late Wurm glaciation, caused by oscillations in inputs of southerly atmospheric airflows related to Dansgaard-Oeschger cycles. Phases of enhanced southerly circulation promoted increased rainfall and ice accumulation in the southern Alps. IS - 2 JF - Quaternary Research EP - 302 TI - Evidence of a two-fold glacial advance during the last glacial maximum in the Tagliamento end moraine system (eastern Alps) VL - 68 SP - 284 KW - 200708 KW - alpes KW - climat KW - dernier-maximum-glaciaire KW - italie AU - Monegato, Giovanni AU - Ravazzi, Cesare AU - Donegana, Marta AU - Pini, Roberta AU - Calderoni, Gilberto AU - Wick, Lucia PY - 2007/09// UR - http://dx.doi.org/10.1016/j.yqres.2007.07.002 ER -