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Estudio comparado de la génesis de espeleotemas silíceos en granitoides de climas semiáridos y templados húmedos

Silica speleothems take differenr forms such as cylindrical stems growing from either the floor or the ceiling in granitic caves. Mineralogically they are opal-A and accumulate in successive layers with a whiskery druse tip formed by gypsum crystals. Initially they are porous but progressively become infilled by opal precipitation. This results in formation of solid speleothems. their size is only a few millimetres long. Bacterial activity accelerate quartz dissolution

Sociedade Geológica de Portugal

Autor: Sanjurjo-Sánchez, Jorge
Fernández Verdía, M.
Roqué i Pau, Carles
Pallí i Buxó, Lluís
Vidal Romaní, Juan Ramón
Resum: Silica speleothems take differenr forms such as cylindrical stems growing from either the floor or the ceiling in granitic caves. Mineralogically they are opal-A and accumulate in successive layers with a whiskery druse tip formed by gypsum crystals. Initially they are porous but progressively become infilled by opal precipitation. This results in formation of solid speleothems. their size is only a few millimetres long. Bacterial activity accelerate quartz dissolution
Accés al document: http://hdl.handle.net/2072/217528
Llenguatge: spa
Editor: Sociedade Geológica de Portugal
Drets: Tots els drets reservats
Matèria: Granit
Hidrologia càrstica
Hydrology, Karst
Títol: Estudio comparado de la génesis de espeleotemas silíceos en granitoides de climas semiáridos y templados húmedos
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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