RT Journal Article T1 La Unidad Inferior e Intermedia de la Cuenca de Madrid en el valle del Henares (Provincia de Guadalajara) T1 The Lower and Intermediate Units of the Madrid Basin in the Henares valley (Province of Guadalajara) A1 Najarro, María A1 Montes, M. A1 López Olmedo, F. AB The northeastern sector of the Madrid Basin shows a substantial succession of miocene materials thatculminate with the so-called «páramo limestones». The purpose of this study is the identification andcharacterization of the deposits that compose the Lower and Intermediate Units, aged Aragonian, in theleft bank of the Henares valley. In addition, the boundary of both units has been reviewed. The findingsshow that in the margin of the basin, this boundary is defined by an angular discordance between theLower and the Intermediate Units, whereas along the valley it is recognized by disconformities representedby a change in the sequence evolution YR 2006 FD 2006 LK http://hdl.handle.net/10272/8608 UL http://hdl.handle.net/10272/8608 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026