Ordóñez Delgado, SalvadorGarcía del Cura, María Ángeles2025-06-042025-06-041997Ordóñez Delgado, S. y García del Cura, M. A. (1997) «La geología de la Cuenca de Madrid en la obra de Casiano de Prado ( 1797-1866)», Geogaceta, 23, pp. 107-109.0213-683Xhttps://hdl.handle.net/20.500.14352/120897After Casiano de Prado the infill of Madrid Basin consists of: the "diluvium" or quaternary deposits which surface and thickness was overestimated in his work, and "fresh water tertiary deposits". In the tertiary deposits he distinguished three units: A calcareous upper unit (Colmenar Stone), a gyspsiferous middle unit (Gypsum of Colmenar), and a lower unit that consists of sandstones and conglomerates which outcroppinng in NE and W of the basin, concordant with cretaceous deposits. In his work has been described convoluted and disturbed evaporite deposits, as well as dolostones and siliceous rocks and sepiolite.spajournal articlehttps://sociedadgeologica.org/publicaciones/geogaceta/geogaceta-23-1997/open access55(091)(460.27)"628"Casiano de PradoTertiaryMadrid basinHistory of GeologyGeología2506.01 Geología Regional5506.09 Historia de la Geología