Las redes de drenaje de los rios Alberche y Guadarrama como indicadores estructurales del Sistema Central Espanol
DOI:
https://doi.org/10.3989/egeol.03591-480Keywords:
River networks, circular alignments, spanish Central SystemAbstract
The network of the Alberche and Guadarrama rivers, obtained by a semicuantitative method, shows that on the granitic and metamorphic rocks of the Spanish Central System exist circular alignments, until now detected by analysis of satellite image. Such alignments are located in the sub-geological system of the Sierra de Guadarrama, and they coexist with to already known rectilinear alignments. In the sub-westem system, Sierra de Gredos, are detected rectilinear alignments. The circular structures of Sierra de Guadarrarna would have a relationship to geological processes still unknown after the Hercynian Orogeny but before of the Oligocene.
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