Fábricas diagenéticas asociadas al paleokarst del techo de la Unidad Intermedia del Mioceno de la cuenca de Madrid
DOI:
https://doi.org/10.3989/egeol.97535-6226Keywords:
Dedolomitization, calcitization, meteoric diagenesis, paleokarst, Miocene, Madrid BasinAbstract
Carbonates and evaporites from the top of the Miocene Intermediate Unit of the Madrid Basin have set as host-rock for early karstification phenomena. The development of these karstic processes imply an important change in the depositional evolution of the basin. In these materials, complex diagenetic fabrics formed as a result of shallow meteoric diagenetic processes have been recognized, being dedolomitization and calcitization of gypsums the main diagenetic processes that affected the top of the Miocene Intermediate Unit. The high variability of diagenetic fabrics is thought to be mainly influenced by the original composition of sediments, the activity of microorganisms and the chemistry of diagenetic waters.
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Published
1997-12-30
How to Cite
Cañaveras, J. C., Hoyos, M., Ordóñez, S., & Calvo, J. P. (1997). Fábricas diagenéticas asociadas al paleokarst del techo de la Unidad Intermedia del Mioceno de la cuenca de Madrid. Estudios Geológicos, 53(5-6), 197–210. https://doi.org/10.3989/egeol.97535-6226
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