doi:10.1016/j.jasrep.2017.03.037engSánchez de la Torre, MartaLe Bourdonnec, François-XavierGratuze, BernardDomingo, RafaelGarcía-Simón, Luis MiguelMontes, LourdesMazo, CarlosUtrilla, PilarApplying ED-XRF and LA-ICP-MS to geochemically characterize chert. The case of the Central-Eastern Pre-Pyrenean lacustrine cherts and their presence in the Magdalenian of NE IberiaART-2017-98597The geochemical characterization of several lacustrine chert formations outcropping in the Central-Eastern Pre-Pyrenean area is presented. Four geological formations were considered: one Upper Cretaceous (Tremp formation), two Oligocene (Castelltallat and Tartareu-Alberola formations) and one Miocene (Aragonian limestones formation). Furthermore, lacustrine cherts appearing in the Magdalenian levels of Forcas I and Cova Alonsé (Huesca, Spain) were also considered. Analyses were done using energy-dispersive X-ray fluorescence (ED-XRF) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Results show different geochemical features between formations, in some cases also between outcrops, concerning major, minor and trace elements. Archaeological samples from Cova Alonsé and Forcas I fit in some of the established groups, being the dispersion area slightly different between sites. Consequently, results determine the presence of diversified lithic procurement strategies.2017http://zaguan.unizar.es/record/7906110.1016/j.jasrep.2017.03.037http://zaguan.unizar.es/record/79061oai:zaguan.unizar.es:79061info:eu-repo/grantAgreement/ES/MINECO/RYC-2013-12613info:eu-repo/grantAgreement/ES/MINECO/HAR2014-59042-Pinfo:eu-repo/grantAgreement/EC/FP7/609102/EU/PRES Towards International Gain of Excellence/PRESTIGEJournal of Archaeological Science: Reports 13 (2017), 88-98by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess