Textura y composición de los depósitos fluviales de la depresión de Valverde del Majano (Segovia) como indicadores de los cambios morfológicos y de red de drenaje
DOI:
https://doi.org/10.3989/egeol.92483-4375Keywords:
River captures, petrographycal maturity, fluvial deposits, texture compositionAbstract
Drainage pattern evolution and river captures in the Depression of Valverde del Majano (Segovia) has been confirmed by textural and compositional analysis of their fluvial deposits and longitudinal profiles. Moros and Eresma rivers show at present a diminish of their maturity due to renewed entrenchment, while Zorita and Balisa ones present little developement. Petrographical maturity changes are controlled in this case mainly by river slope and source areas changes. An asynchronical evolution, depending on channel stage of rejuvenation and lithological changes caused by headwaters piracy, has been established.
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