RT Journal Article T1 Análisis composicional de la Formación Areniscas de Manuel (Triásico superior) en las secciones de Almansa, Montealegre y Manuel (provincias de Albacete y Valencia, Zona Prebética oriental): Resultados preliminares T1 Compositional analysis of the Manuel Sandstone Formation (Upper Triassic) in the Almansa, Montealegre and Manuel sections (Albacete and Valencia provinces, eastern Prebetic Zone): Preliminary results A1 Díaz Martínez, Enrique AB Modal compositional analysis of sandstones from the Manuel Sandstone Formation (Upper Triassic, Keuper facies) in the eastern Prebetic Zone of the Betic Cordillera (SE Spain) identifies a quartzose (Qm>K>P) and quartzolithic (Qm>Ls>Qp) petrofacies, with a quite homogeneus (S<7.5%) and predominantly subarkosic composition. Tectonic provenance for the detrital modes is interpreted as continental block (deeply weathered stable craton) and recycled orogen provenance. These results are in agreement with the paleogeographic setting identified in previous studies. Once characterized with sufficient detail, detrital modes of sandstones from the different Triassic units (Buntsandstein or Keuper) at different locations may be used as criteria for their differentiation, specially when no other more reliable means are available PB Sociedad Geológica de España YR 1999 FD 1999 LK http://hdl.handle.net/10272/9914 UL http://hdl.handle.net/10272/9914 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026