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dc.contributor.author Cravero, Maria Fernanda
dc.contributor.author Marfil, Silvina Andrea
dc.contributor.author Ramos, Cinthia Paula
dc.contributor.author Maiza, Pedro Jose
dc.date.available 2017-06-16T22:01:37Z
dc.date.issued 2014-06
dc.identifier.citation Cravero, Maria Fernanda; Marfil, Silvina Andrea; Ramos, Cinthia Paula; Maiza, Pedro Jose; Coexistence of halloysite and iron-bearing clays in an altered ignimbrite, Patagonia, Argentina; Mineralogical Soc; Clay Minerals (print); 49; 3; 6-2014; 429-441
dc.identifier.issn 0009-8558
dc.identifier.uri http://hdl.handle.net/11336/18393
dc.description.abstract The Mamil Choique halloysite deposits of Patagonia, Argentina, contain randomly distributed green clay inclusions and patches within the halloysite mass. Halloysite has been formed from the thorough alteration of rhyolitic to dacitic ash fall tuffs and ignimbrites of the Huitrera Formation, Eocene age, under ambient conditions. The smectites present in the clay inclusions have been determined as ferruginous beidellites with variables amounts of Fe3+ in octahedral sites. The weathering activity that caused the formation of halloysite was also responsible for the genesis of the iron-bearing clay minerals, the formation of which was controlled mainly by permeability. Textural variations within the rock indicate favourable local geochemical environments for the formation of the green clay minerals.
dc.format application/pdf
dc.language.iso eng
dc.publisher Mineralogical Soc
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Iron-bearing smectites
dc.subject Halloysite
dc.subject Weathering
dc.subject Patagonia
dc.subject Argentina
dc.subject.classification Geología
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Coexistence of halloysite and iron-bearing clays in an altered ignimbrite, Patagonia, Argentina
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-06-16T15:53:34Z
dc.journal.volume 49
dc.journal.number 3
dc.journal.pagination 429-441
dc.journal.pais Reino Unido
dc.description.fil Fil: Cravero, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotopica; Argentina
dc.description.fil Fil: Marfil, Silvina Andrea. Universidad Nacional del Sur. Departamento de Geología; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
dc.description.fil Fil: Ramos, Cinthia Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energia Atomica. Centro Atomico Constituyentes; Argentina
dc.description.fil Fil: Maiza, Pedro Jose. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title Clay Minerals (print)
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1180/claymin.2014.049.3.06
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/minsoc/cm/2014/00000049/00000003/art00006


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)