RT Journal Article T1 Caracterización petrofísica de areniscas del Eoceno Medio–Superior del Pirineo Occidental T1 Petrophysical characteristics of the middle-upper Eocene sandstones of the western Pyrenees A1 Gisbert, Josep A1 Buj, Óscar A1 Franco, Belén AB In this work we have studied six varieties of Tertiary sandstone from the Pyrenees, they are all lithareniteswith medium grain size between 0,1 a 0,25 mm and porosity between 0,4 - 4%.Some petrographical and physical parameters (Mineralogical composition, absorption, free porosity,apparent density) and mechanical properties (compression and flexion strength resistance ) have beenstudied in order to establish a relation between them. The statistic study has showed the correlationbetween compression strength resistance and petrographical parameters. The content in cement hasresulted to give the best correlation with mechanical properties PB Sociedad Geológica de España YR 2005 FD 2005 LK http://hdl.handle.net/10272/8700 UL http://hdl.handle.net/10272/8700 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026