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Titolo:
INFLUENCE OF GEOLOGICAL MATERIAL IN THE COMPOSITION OF SURFACE WATERSOF GALICIA (NW SPAIN) - GENESIS OF CLAY-MINERALS
Autore:
DEANTA RC; MACIAS F;
Indirizzi:
UNIV SANTIAGO DE COMPOSTELA,DEPT EDAFOL SANTIAGO SPAIN
Titolo Testata:
Clay Minerals
fascicolo: 2, volume: 28, anno: 1993,
pagine: 285 - 296
SICI:
0009-8558(1993)28:2<285:IOGMIT>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALUMINUM; GIBBSITE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
R.C. Deanta e F. Macias, "INFLUENCE OF GEOLOGICAL MATERIAL IN THE COMPOSITION OF SURFACE WATERSOF GALICIA (NW SPAIN) - GENESIS OF CLAY-MINERALS", Clay Minerals, 28(2), 1993, pp. 285-296

Abstract

The composition of fluvial waters can be used to predict the processes of formation and evolution of secondary minerals in Galician soils. These processes are similar in areas with different rocks, from acid to basic, the only exception being strongly serpentinized materials. Ingeneral, the nature of the rock has less influence than the characteristics of the alteration system, which is always open, acid and freelydraining. Mineral neoformation is always of the monosialitic type, having different degrees of evolution. The incipient phases tend to formgibbsite as a more stable mineral, and halloysite, allophanes and imogolite as metastable forms. With time, a crystalline kaolinite would be the only stable species. These results agree with the mineralogy andthe andic or ferralic properties of the soils.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 05:10:02