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Cristalinidad de filosilicatos en productos de alteración y edafogénesis de rocas graníticas de A Coruña

Phyllosilicate crystallinity in soils and weathering products from granitic rocks of Galicia
Authors: Romero, R.; Taboada, T. M.; García, C.;

Cristalinidad de filosilicatos en productos de alteración y edafogénesis de rocas graníticas de A Coruña

Abstract

[Resumen] Se ha determinado la cristalinidad de micas y filosilicatos 1: 1 dioctaédricos de los limos y arcillas de 20 perfiles edáficos desarrollados sobre rocas graníticas. Se observa una estrecha relación entre el valor del índice de cristalinidad de los filosilicatos 2: 1, el tipo de mica predominante en el material de partida y el grado de desarrollo de los suelos; la menor cristalinidad aparece asociada a suelos formados a partir de materiales en los que la biotita es la única mica presente o la predominante. Los estudios de D. R. X., A. T. D. e 1. R. coinciden en señalar el predominio de filosicitatos 1: 1 de muy débil organización interna, comprobándose por microscopía electrónica que son fundamentalmente de tipo halloysítico

[Abstract] Micas and dioctaedric 1: 1 phyllosilicate crystallinity of loam and clay fractions of twenty soil profiles developed from granite rocks have been determined. There are a clear relation among the cystallinity index of 2: 1 phyllosilicate, the prevailing type of mica in the soil-parent material and the soil evolution degree. Cystallinity is the lowest when soils are formed from granitic material when the most abundant mica is the biotite. XRD, DTA and RI studies indicate the predominance of very low ordered 1: 1 phyllosilicates, electron microscopy shows that they are mainly halloysitic anes.

Country
Spain
Related Organizations
Keywords

Soils granite weathering, Phyllosilicate, Filosilicato, Alteración granítica, Suelos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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