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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

Author: Sanjurjo-Sánchez, Jorge
Fernández Verdía, M.
Roqué i Pau, Carles
Pallí i Buxó, Lluís
Vidal Romaní, Juan Ramón
Abstract: 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
Document access: http://hdl.handle.net/2072/217528
Language: spa
Publisher: Sociedade Geológica de Portugal
Rights: Tots els drets reservats
Subject: Granit
Hidrologia càrstica
Hydrology, Karst
Title: Estudio comparado de la génesis de espeleotemas silíceos en granitoides de climas semiáridos y templados húmedos
Type: info:eu-repo/semantics/article
Repository: Recercat

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