RT Journal Article T1 Texturas superficiales en los granos de cuarzo de las arenas del Plioceno superior de la zona Jerez-Lebrija (SW de España) T1 Quartz grain surface features study of Late Pliocene sands from Lebrija-Jerez zone (S W Spain) A1 Moral Cardona, J. P. A1 Sánchez Bellón, A. A1 Domínguez Bella, S. A1 Gutiérrez Mas, José Manuel A1 López Aguayo, F. A1 Antonio Caballero, M. AB In the Jerez-Lebríja area (SW Spain) there are deppsits of Pliocene sands which are exploited in various quarries. The analysis of the surface features presented by the quartz grains from these sands refveals different stages in their evolution of the grains. The first of these stages is recorded in the form of conchoidal fractures and arcuate steps; the second is represented by an assemblage of features comprising isolated Vs, grooves and chattermark trails. In a posterior stage chemical features were developed in relation to tropic climatic Conditions PB Sociedad Geológica de España YR 1996 FD 1996 LK http://hdl.handle.net/10272/11096 UL http://hdl.handle.net/10272/11096 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026