http://www.cnr.it/ontology/cnr/individuo/prodotto/ID288015
Corrigendum to \"Characterization of granitoid and gneissc weathering profiles of the Mucone River basin (Calabria, southern Italy)\". (Articolo in rivista)
- Type
- Label
- Corrigendum to \"Characterization of granitoid and gneissc weathering profiles of the Mucone River basin (Calabria, southern Italy)\". (Articolo in rivista) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Alternative label
Borrelli L., Perri F., Critelli S. Gullà G. (2014)
Corrigendum to "Characterization of granitoid and gneissc weathering profiles of the Mucone River basin (Calabria, southern Italy)".
in Catena (Cremling.)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Borrelli L., Perri F., Critelli S. Gullà G. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://dx.doi.org/10.1016/j.catena.2013.08.014 (literal)
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR-IRPI, Università della Calabria (literal)
- Titolo
- Corrigendum to \"Characterization of granitoid and gneissc weathering profiles of the Mucone River basin (Calabria, southern Italy)\". (literal)
- Abstract
- The paper deals with the development of a multidisciplinary research on weathering profiles of granitoid and
gneissic rocks related to tectonic and landscape evolution of the western Sila Grande Massif (Calabria, southern
Italy). Field scale observations and petrographical andmineralogical features are used to characterize in detail the
weathering processes. The weathering profiles of the granitoid cut slopes are generally simple showing a progressive
weathering increase toward the top of the slopes, whereas the weathering profiles of the gneissic cut
slopes are generally complexwith irregularities in the spatial distribution ofweathered horizons. The microfabric
and petrographic analyses show that gneissic samples (classes V-VI of weathering grade) are characterized by
higher percentage of altered minerals and microfracture and void rather than granitoid samples (classes V-VI
of weathering grade). The main mineralogical changes concern the partial transformation of biotite and the partial
destruction of feldspars (mainly plagioclases), associated with the neoformation of secondaryminerals (clay
minerals and Fe-oxides) and with a substitution of the original rock fabric. Neoformed clay minerals and ferruginous
products replaced feldspars and biotite during the most advanced weathering stage. Referred as physical
changes coupled with chemical variations, the final results of weathering process are a soil-like material characterized
by sand-gravel grain-size fraction for the granitoid rocks and by both silt-clay and sand-silt grain-size
fraction for the gneissic rocks. This generally produces a greater value of the SGI (Sand Generation Index) for
granitoids and explains the great productivity in sandy deposits of this lithology. (literal)
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