@article{10272/8253,
year = {2008},
url = {http://hdl.handle.net/10272/8253},
abstract = {The trace elements of the quartz mineral, in the fine sand fraction (50 - 250 μm) from two Orthent soils
from Sierra Nevada have been studied. Fe3+ is the most abundant trace element, followed by Al3+, and K+,
Ca2+, Na+, Mn4+, Mg2+ and Ti4+ in smaller quantities. The heteroelectric substitution in the Si4+ tetrahedra
by Fe3+ and Al3+ has been evidenced, generating a deficit of positive charge which is compensated by the
entrance in the crystalline network of K+, Ca2+, Na+ and Mg2+. These substitutions are more abundant in
the edges of the grains than in the centres of the same ones; from what a decisive paper of the soil solution
in the mobility of these elements is postulated. We propose a process of alteration of the quartz in the soil
environment},
title = {Elementos traza en el cuarzo de la arena fina de Orthents de Sierra Nevada (España)},
title = {Trace elements in quartz in the fine sand of Orthents from Sierra Nevada (Spain)},
author = {Martín García, J.M. and Delgado, R. and Delgado, G. and Márquez, R. and Calero, J. and Aranda, V. and Sánchez Marañón, M. and Abad, Isabel},
}