Importance of porosity and transfer of matter in the rock weathering processes: two examples in central Spain

Some physical properties (bulk and free porosity, pore size distribution), and the chemical composition and mass balance of two deeply weathered profiles one developed on Hercynian granodiorite and the other on pre-Cambrian slates were studied. Hydric and mercury porosimetry, nitrogen adsorption tec...

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Veröffentlicht in:	Environmental earth sciences 2011-12, Vol.64 (7), p.1741-1754
Hauptverfasser:	Molina Ballesteros, E., García Talegón, J., Iñigo Iñigo, A. C., González Sánchez, M., Herrero Fernández, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biogeosciences Cambrian Crystalline rocks Earth and Environmental Science Earth Sciences Earth, ocean, space Environmental Science and Engineering Exact sciences and technology Geochemistry Geological time Geology Hydrology/Water Resources Hydroxides Igneous and metamorphic rocks petrology, volcanic processes, magmas Landforms Marine and continental quaternary Mercury Minerals Neogene Original Article Physical properties Pore size Porosity River networks Rocks Surficial geology Terrestrial Pollution Weathering
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Zusammenfassung:	Some physical properties (bulk and free porosity, pore size distribution), and the chemical composition and mass balance of two deeply weathered profiles one developed on Hercynian granodiorite and the other on pre-Cambrian slates were studied. Hydric and mercury porosimetry, nitrogen adsorption techniques, chemical analyses and XRD techniques were used. On granodiorite, weathering has created increased porosity with a pore diameter
ISSN:	1866-6280 1866-6299
DOI:	10.1007/s12665-011-1015-y