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


Autoria(s): Sanjurjo-Sánchez, Jorge; Fernández Verdía, M.; Roqué i Pau, Carles; Pallí i Buxó, Lluís; Vidal Romaní, Juan Ramón
Data(s)

12/09/2013

Resumo

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

Identificador

http://hdl.handle.net/10256/8201

Idioma(s)

spa

Publicador

Sociedade Geológica de Portugal

Direitos

Tots els drets reservats

Palavras-Chave #Granit #Hidrologia càrstica #Hydrology, Karst
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion