%0 Journal Article
%T Hallazgo de sepiolita en Serpentinitas, Mina 芍rbol seco, provincia de C車rdoba
%A Leticia Lescano
%A Silvina Marfil
%A Pedro Maiza
%A Jorge Sfragulla
%J Revista de la Asociaci車n Geol車gica Argentina
%D 2012
%I Asociaci車n Geol車gica Argentina
%X La sepiolita es un mineral utilizado en numerosos productos comerciales e industriales generalmente relacionados con aplicaciones de absorci車n de mol谷culas org芍nicas. Este mineral, por su h芍bito fibroso, fue utilizado como un sustituto del asbesto. Presenta una estructura tridimensional en fibras que origina una alternancia de "listones" y canales denominados zeol赤ticos donde pueden alojarse cationes, agua y compuestos org芍nicos. En la Argentina, ha sido descripta por diversos autores como una alteraci車n de rocas carbon芍ticas. En este trabajo se caracteriz車 una sepiolita localizada en el sector oeste de la mina 芍rbol Seco, departamento Calamuchita, provincia de C車rdoba, desarrollada en fracturas dentro de cuerpos serpentin赤ticos. Sepiolite is used in over one hundred industrial and commercial products, commonly in sorption applications related to organic molecules. Being a fibrous mineral, this material was useful as a substitute for asbestos. Crystal structure consists of silica tetrahedral sheets inverted at regular intervals in the apical direction. Each ribbon alternates with channels along the fiber axis, containing H2O molecules and exchangeable cations, similar to zeolitic minerals. The sepiolite objet of this study is located to the west of the 芍rbol Seco mine, Department of Calamuchita, Province of C車rdoba, Argentina. It was found in fractures and great deformation zones of serpentinitic rocks. In Argentina, the mineral was described by several authors as a carbonatic rock alteration. The purpose of this paper is to characterize the mineral developed in an environment of serpentinitic rocks alteration.
%K Filosilicato
%K Fibras
%K Argentina
%K Phylosilicate
%K Fibers
%K Argentina
%U http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0004-48222012000400004