@article{10272/7838, year = {2010}, url = {http://hdl.handle.net/10272/7838}, abstract = {Detailed petrographic observations of Upper Proterozoic -Lower Cambrian deposits of the Castañar de Ibor allows the characterization of the diagenetic history of these rocks. Craywackes, shales and limestones were deposited during the Upper Proterozoic-Lower Cambrian within a siliciclastic-carbonatic marine platform. Dolomite replaced mostly limestones, but also cemented the siliciclastic deposits. Later on magnesium-rich fluids circulating along stylolites, bedding planes and fractures partially produced the replacement of the dolostones and some siliciclastic beds. Finally a new dolomitisation phase produced replacement ofthe magnesite by dolomite and dolomite cementation}, title = {Caracterización petrológica de las magnesitas y las dolomías encajantes de edad Proterozoica Superior-Cámbrico Inferior, Grupo Ibor (Castañar de Ibor, Cáceres)}, title = {Petrology of magnesites and their dolomitic host rocks of Upper Proterozoic- Lower Cambrian age, Ibor Group (Castañar de Ibor, Cáceres)}, author = {Herrero Fernández, María J. and Martín Pérez, Andrea and Gil Peña, Inmaculada and Alonso Zarza, Ana María and Meléndez Hevia, Alfonso and Martín García, Rebeca}, }