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Paleoenvironmental reconstruction of Basa de la Mora glacial lake (Central Pyrenees) during the Holocene: preliminary results from palynological analyses

La Basa de la Mora (42o 33’N, 0o 20’E, 1914 m a.s.l.) is a glacial lake located at the central zone of the southern Pyrenees (Spain). It is a shallow lake with only 2.5 m water depth and 6.3 ha floodplain. Its position halfway between the Mediterranean Sea and the Atlantic Ocean lends to both mediterranean and oceanic climatic influences. Currently the zone has peri-mediterranean climate and is the limit of the atlantic fronts influence. Thus, the paleoenvironmental reconstruction of Basa de la Mora record (BSM) could facilitate the understanding of the complex climate patterns and forcings that interplay in this transition area, particularly at the Early Holocene, when different and apparent opposite climatic patrons has been recorded in NE Spain. To achieve this goal, we are mainly reconstructing the Holocene palaeoenvironmental conditions, including vegetation dynamics, of different lacustrine records of the region across a complete E-W / N-S transect in the Pyrenees, including the BSM sequence.