148159 20250124145430.0 doi 10.1007/s00531-014-1079-5 sideral 99372 ART-2014-99372 eng Ezquerro, Lope Universidad de Zaragoza (orcid)0000-0003-0900-1440 Correlation of sedimentary units from grain-size and mineralogic analyses as a tool for constraining trench interpretations in palaeoseismology 2014 In palaeoseismological trench studies, precise correlation of sedimentary units between fault blocks has an unquestionable value for accurately inferring the amounts of coseismic displacement and hence for assessing seismic hazard. A methodology based on laser analysis of particle size and mineralogic composition by X-ray diffraction is proposed in order to strengthen the correlation of sedimentary units in a trench excavated across the Concud Fault (central Iberian Chain, Spain). The surveyed sediments show sharp and multiple lateral facies changes, as well as inconsistent optically stimulated luminescence (OSL) ages. The results reinforce the correlation based on field inspection of lithologic and sedimentologic features. Moreover, they allow interpretation of rejuvenation of OSL ages of samples in the upthrown fault block, which has been attributed to partial erosion of sedimentary units, as evidenced by their smaller thickness and erosive boundaries. The correlated units are then used to estimate coseismic displacements for three palaeoseismic events. info:eu-repo/grantAgreement/ES/MINECO/BES-2010-031339 info:eu-repo/grantAgreement/ES/MINECO/CGL2009-13390 info:eu-repo/grantAgreement/ES/MINECO/CGL2012-35662 info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.093 2014 GEOSCIENCES, MULTIDISCIPLINARY 62 / 175 = 0.354 2014 Q2 T2 info:eu-repo/semantics/review info:eu-repo/semantics/publishedVersion Liesa, Carlos L. Universidad de Zaragoza (orcid)0000-0002-9130-117X Simón, José Luis Universidad de Zaragoza (orcid)0000-0003-1412-5245 Arlegui, Luis Eduardo Universidad de Zaragoza (orcid)0000-0001-5091-9398 Luzón, Aránzazu Universidad de Zaragoza (orcid)0000-0002-8929-9429 Lafuente, Paloma Universidad de Zaragoza 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 2000 280 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Estratigrafía 103, 8 (2014), 2327–2333 Int. j. earth sci. International Journal of Earth Sciences 1437-3254 2995991 http://zaguan.unizar.es/record/148159/files/texto_completo.pdf Versión publicada 2434754 http://zaguan.unizar.es/record/148159/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:148159 articulos driver 2025-01-24-14:51:09 ARTICLE