Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina

Autores
Martinez, Juan Cruz; Dristas, Jorge Anastasio; Massonne, Hans J.; Theye, Thomas
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chemical bulk analyses of intermediate alunite-natroalunite minerals indicate anomalous high contentsof REE, Sr, Ba, Ca and P. Alunite occurs as veinlets or nodules cross-cutting hydrothermal claydeposits, containing pyrophyllite, kaolinite and sericite in the west Barker area (Dristas & Frisicale1983(5), 1992(6)). Petrographic studies reveal a pseudocubic habit for the alunite. No significant zoninghas been detected in this mineral by EPMA backscattered images. Additionally, EPMA and EDXstudies indicate that the tabular-like inclusions in cores of alunite contain significant amounts of P, Ba,Sr, REE, Ca and Fe. Alunite shows epitaxial growth on the inclusion mineral. These tabular-likeinclusions correspond to APS (aluminium phosphate sulphate) minerals, such as florencite, formed atearly stages before alunite crystallization from a solution with a high phosphorous/sulphur ratio. Thecrystal structure of APS minerals are suitable for REE, Sr and Ba substitution since metal cations aresituated in large cavities formed by 6-membered rings of M(O, OH)6 octahedra. A later increase ofsolution sulfurization would favor the formation of alunite that constrained the REE, P, Sr, Fe, Ca andBa fixation.
Fil: Martinez, Juan Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Dristas, Jorge Anastasio. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Massonne, Hans J.. Universitat Stuttgart; Alemania
Fil: Theye, Thomas. Universitat Stuttgart; Alemania
Materia
ALUNITE
APS MINERAL INCLUSIONS
REE
HYDROTHERMAL CLAY DEPOSITS
CA AND BA FIXATIO
FE
SR
P
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/75747
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, ArgentinaMartinez, Juan CruzDristas, Jorge AnastasioMassonne, Hans J.Theye, ThomasALUNITEAPS MINERAL INCLUSIONSREEHYDROTHERMAL CLAY DEPOSITSCA AND BA FIXATIOFESRPhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Chemical bulk analyses of intermediate alunite-natroalunite minerals indicate anomalous high contentsof REE, Sr, Ba, Ca and P. Alunite occurs as veinlets or nodules cross-cutting hydrothermal claydeposits, containing pyrophyllite, kaolinite and sericite in the west Barker area (Dristas & Frisicale1983(5), 1992(6)). Petrographic studies reveal a pseudocubic habit for the alunite. No significant zoninghas been detected in this mineral by EPMA backscattered images. Additionally, EPMA and EDXstudies indicate that the tabular-like inclusions in cores of alunite contain significant amounts of P, Ba,Sr, REE, Ca and Fe. Alunite shows epitaxial growth on the inclusion mineral. These tabular-likeinclusions correspond to APS (aluminium phosphate sulphate) minerals, such as florencite, formed atearly stages before alunite crystallization from a solution with a high phosphorous/sulphur ratio. Thecrystal structure of APS minerals are suitable for REE, Sr and Ba substitution since metal cations aresituated in large cavities formed by 6-membered rings of M(O, OH)6 octahedra. A later increase ofsolution sulfurization would favor the formation of alunite that constrained the REE, P, Sr, Fe, Ca andBa fixation.Fil: Martinez, Juan Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Dristas, Jorge Anastasio. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Massonne, Hans J.. Universitat Stuttgart; AlemaniaFil: Theye, Thomas. Universitat Stuttgart; AlemaniaThe Clay Science Society of Japan2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75747Martinez, Juan Cruz; Dristas, Jorge Anastasio; Massonne, Hans J.; Theye, Thomas; Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina; The Clay Science Society of Japan; Clay Science; 12; Supl. 2; 12-2006; 15-200009-85742186-3555CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pdfs.semanticscholar.org/2322/30f0c367e99d042267d94838bcd1ab6d2eda.pdf?_ga=2.152680569.115513964.1557160055-1000705421.1556557937info:eu-repo/semantics/altIdentifier/doi/10.11362/jcssjclayscience1960.12.Supplement2_15info:eu-repo/semantics/altIdentifier/url/https://www.jstage.jst.go.jp/article/jcssjclayscience1960/12/Supplement2/12_Supplement2_15/_articleinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:43Zoai:ri.conicet.gov.ar:11336/75747instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:43.765CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
title Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
spellingShingle Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
Martinez, Juan Cruz
ALUNITE
APS MINERAL INCLUSIONS
REE
HYDROTHERMAL CLAY DEPOSITS
CA AND BA FIXATIO
FE
SR
P
title_short Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
title_full Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
title_fullStr Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
title_full_unstemmed Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
title_sort Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina
dc.creator.none.fl_str_mv Martinez, Juan Cruz
Dristas, Jorge Anastasio
Massonne, Hans J.
Theye, Thomas
author Martinez, Juan Cruz
author_facet Martinez, Juan Cruz
Dristas, Jorge Anastasio
Massonne, Hans J.
Theye, Thomas
author_role author
author2 Dristas, Jorge Anastasio
Massonne, Hans J.
Theye, Thomas
author2_role author
author
author
dc.subject.none.fl_str_mv ALUNITE
APS MINERAL INCLUSIONS
REE
HYDROTHERMAL CLAY DEPOSITS
CA AND BA FIXATIO
FE
SR
P
topic ALUNITE
APS MINERAL INCLUSIONS
REE
HYDROTHERMAL CLAY DEPOSITS
CA AND BA FIXATIO
FE
SR
P
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Chemical bulk analyses of intermediate alunite-natroalunite minerals indicate anomalous high contentsof REE, Sr, Ba, Ca and P. Alunite occurs as veinlets or nodules cross-cutting hydrothermal claydeposits, containing pyrophyllite, kaolinite and sericite in the west Barker area (Dristas & Frisicale1983(5), 1992(6)). Petrographic studies reveal a pseudocubic habit for the alunite. No significant zoninghas been detected in this mineral by EPMA backscattered images. Additionally, EPMA and EDXstudies indicate that the tabular-like inclusions in cores of alunite contain significant amounts of P, Ba,Sr, REE, Ca and Fe. Alunite shows epitaxial growth on the inclusion mineral. These tabular-likeinclusions correspond to APS (aluminium phosphate sulphate) minerals, such as florencite, formed atearly stages before alunite crystallization from a solution with a high phosphorous/sulphur ratio. Thecrystal structure of APS minerals are suitable for REE, Sr and Ba substitution since metal cations aresituated in large cavities formed by 6-membered rings of M(O, OH)6 octahedra. A later increase ofsolution sulfurization would favor the formation of alunite that constrained the REE, P, Sr, Fe, Ca andBa fixation.
Fil: Martinez, Juan Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Dristas, Jorge Anastasio. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Massonne, Hans J.. Universitat Stuttgart; Alemania
Fil: Theye, Thomas. Universitat Stuttgart; Alemania
description Chemical bulk analyses of intermediate alunite-natroalunite minerals indicate anomalous high contentsof REE, Sr, Ba, Ca and P. Alunite occurs as veinlets or nodules cross-cutting hydrothermal claydeposits, containing pyrophyllite, kaolinite and sericite in the west Barker area (Dristas & Frisicale1983(5), 1992(6)). Petrographic studies reveal a pseudocubic habit for the alunite. No significant zoninghas been detected in this mineral by EPMA backscattered images. Additionally, EPMA and EDXstudies indicate that the tabular-like inclusions in cores of alunite contain significant amounts of P, Ba,Sr, REE, Ca and Fe. Alunite shows epitaxial growth on the inclusion mineral. These tabular-likeinclusions correspond to APS (aluminium phosphate sulphate) minerals, such as florencite, formed atearly stages before alunite crystallization from a solution with a high phosphorous/sulphur ratio. Thecrystal structure of APS minerals are suitable for REE, Sr and Ba substitution since metal cations aresituated in large cavities formed by 6-membered rings of M(O, OH)6 octahedra. A later increase ofsolution sulfurization would favor the formation of alunite that constrained the REE, P, Sr, Fe, Ca andBa fixation.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/75747
Martinez, Juan Cruz; Dristas, Jorge Anastasio; Massonne, Hans J.; Theye, Thomas; Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina; The Clay Science Society of Japan; Clay Science; 12; Supl. 2; 12-2006; 15-20
0009-8574
2186-3555
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75747
identifier_str_mv Martinez, Juan Cruz; Dristas, Jorge Anastasio; Massonne, Hans J.; Theye, Thomas; Alunites and REE rich APS minerals associated to hydrothermal clay deposits in the Barker area, Tandilia, Argentina; The Clay Science Society of Japan; Clay Science; 12; Supl. 2; 12-2006; 15-20
0009-8574
2186-3555
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pdfs.semanticscholar.org/2322/30f0c367e99d042267d94838bcd1ab6d2eda.pdf?_ga=2.152680569.115513964.1557160055-1000705421.1556557937
info:eu-repo/semantics/altIdentifier/doi/10.11362/jcssjclayscience1960.12.Supplement2_15
info:eu-repo/semantics/altIdentifier/url/https://www.jstage.jst.go.jp/article/jcssjclayscience1960/12/Supplement2/12_Supplement2_15/_article
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Clay Science Society of Japan
publisher.none.fl_str_mv The Clay Science Society of Japan
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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