RT Journal Article T1 Un texto de petrología poco conocido: Génesis de las rocas (1898), de Gonzalo Moragas T1 A scarcely known text on Petrology: Génesis de las rocas (1R9R). by Gonzalo Moragas A1 Ordaz, Jorge AB A nineteenth-century book on Petrology, Génesis de las Rocas (1898), by the Spanish Civil engineer Gonzalo Moragas is described in this note. The main idea of Moragas about the genesis of rocks originates from the hypothesis that the first solid matter of the Earth was formed from a unique magma by grain-crystalline mineralogical differentiation PB Sociedad Geológica de España YR 1995 FD 1995 LK http://hdl.handle.net/10272/13445 UL http://hdl.handle.net/10272/13445 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 13 jul 2026