Paleoclimate and vegetation reconstruction of Abric Romani (Capellades, Spain) during MIS-3, 4, and MIS-5 (a-d)

Paleoclimate and vegetation reconstruction of Abric Romani (Capellades, Spain) during MIS-3, 4, and MIS-5 (a-d)Demet Biltekin1,2, Francesc Burjachs1,3,4, Josep Vallverdú1,4, Warren D. Sharp5, Regina Mertz-Kraus6, M. Gema Chacón1,4, Palmira Saladié1,4, James L. Bischoff5, Eudald Carbonell1,4 1Institut Català de Paleoecologia Humana i Evolucio Social (IPHES), Zona Educacional 4, Campus Sescelades URV, edifici W3, 43007 Tarragona, Spain.2Istanbul Technical University, Eurasia Institute of Earth Sciences, Ayazağa Campus, Maslak, Sarıyer, 34469, Istanbul/Turkey3ICREA, Barcelona, Catalonia, Spain.4URV, Universitat Rovira i Virgili, Facultat de Lletres, Avinguda Catalunya, 35, 43002 Tarragona, Catalonia, Spain.5Berkeley Geochronology Center, Berkeley, CA 94709, United States.6Institute for Geosciences, Johannes Gutenberg University, Mainz, Germany. This new pollen data provides the vegetation and climate history during ca. 110 ka-55 ka BP from Abric Romaní archaeological site using pollen analysis of a 30 m-long sedimentary sequence. The beginning of the MIS 3 starts an abundance in steppes and herbs, indicating cold and dry climate in the region. However, this was replaced by a slight increase in deciduous Quercus and Mediterranean trees. During the MIS 4, the pollen records reflect a predominance of Artemisia steppes and herbaceous communities (Poaceae and Asteraceae families), indicating dry and cold conditions in Abric Romaní. The MIS 5 was well recorded with its substages, including 5a, 5b, 5c and 5d. The MIS 5d is characterized by Pinus and Artemisia steppes with herbaceous assemblages. The higher abundance of Artemisia during the second part of the MIS 5b, reflecting cold and dry climate, while temperate forest and Mediterranean trees decline. Mélisey II stadial was marked by an increase in Artemisia and herbs. This suggests that cold climatic conditions existed during this time period. The abundance of oaks during the MIS 5c indicate warmer and humid climate in the region. Other deciduous and broadleaved forest developed as well, including Ulmus, Viburnum, Juglans and Castanea. A short cooling Montaigu event was also recorded within this interstadial, which is dominated by a high percentage of Ericaceae with Artemisia. The first part of the MIS 5a is characterized by Corylus, Carpinus, Hedera, Ulmus, Betula, pointing to warmer climatic conditions. In contrast, the high amount of Artemisia steppes may indicate an enhanced degree of continentality during the second half of the MIS 5a in the north-eastern Iberian Peninsula.Keywords: paleovegetation, climate, pollen analysis, Late Pleistocene, Spain