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