Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasc...

Autores
Lira, Raul; Parra, Francisco; Biglia, Marco Esteban; Morello, Orquídea; Guereschi, Alina Beatriz
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The La Chinchilla granite is a ~3.75 km2 epizonal pluton of Lower Carboniferous age located in Sierra de Velasco, Sierras Pampeanas, Argentina. Equigranular micropegmatitic and porphyritic main granite types host abundant millimeter-, to < 2 m-sized miarolitic pegmatites and pockets of simple major mineralogy (± beryl). Both granite types host micrometer sized accessory species [i.e., monazite-(Ce), several high field strength element oxide species, ilmenite, cassiterite, fluorapatite] and fluorite. A F-Na rich fluid phase promoted strong albitization at late miarolitic stages, along with crystallization of extremely F-rich polylithionite and fluorite, and the formation of replacing pyrochlore group species associated with a second generation of cassiterite. The increase of the Ta# from hydroxycalciopyrochlore to hydroxycalciomicrolite and from micromiarolitic cassiterite (cassiterite 1) to hydrothermal cassiterite (cassiterite 2), supports Nb-Ta fractionation at hydrothermal temperatures. Carlosbarbosaite [(UO2)2Nb2O6(OH)2•2H2O] occurs as a pseudomorphic or as a short-range transported phase. Indigenous carlosbarbosaite formed after columbite-(Fe), U-free Nb-bearing ilmenite and likely after U-bearing pyrochlore supergroup species and a columbite group mineral, plausibly due to interaction with a hydrothermal-, U6+(±Nb±Ta)-enriched fluid, in some cases a SiO2-bearing fluid. This fluid likely represents a lower temperature, less alkaline and more oxidizing fluid that evolved from the higher temperature F-Na-rich fluids active during the late-miarolitic hydrothermal stage. Indigenous carlosbarbosaite has the ideal U-, Nb-rich endmember composition, though is significantly richer in Ca and poorer in total Nb+Ta but with higher Nb# than the one from the type locality. Supergene fluids deposited the transported type which attained economic concentrations in a fault zone where restricted-, likely alkaline oxidizing-conditions could have favored Nb mobility.
Fil: Lira, Raul. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Mineralogía y Geología "Dr. A. Stelzner"; Argentina
Fil: Parra, Francisco. Comisión Nacional de Energía Atómica; Argentina
Fil: Biglia, Marco Esteban. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Mineralogía y Geología "Dr. A. Stelzner"; Argentina
Fil: Morello, Orquídea. Comisión Nacional de Energía Atómica; Argentina
Fil: Guereschi, Alina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Materia
A-TYPE GRANITE
NYF MIAROLITIC PEGMATITES
FLUORINE-RICH
NIOBIUM MOBILITY
URANIUM
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:11336/226217
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/226217
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, ArgentinaLira, RaulParra, FranciscoBiglia, Marco EstebanMorello, OrquídeaGuereschi, Alina BeatrizA-TYPE GRANITENYF MIAROLITIC PEGMATITESFLUORINE-RICHNIOBIUM MOBILITYURANIUMhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The La Chinchilla granite is a ~3.75 km2 epizonal pluton of Lower Carboniferous age located in Sierra de Velasco, Sierras Pampeanas, Argentina. Equigranular micropegmatitic and porphyritic main granite types host abundant millimeter-, to < 2 m-sized miarolitic pegmatites and pockets of simple major mineralogy (± beryl). Both granite types host micrometer sized accessory species [i.e., monazite-(Ce), several high field strength element oxide species, ilmenite, cassiterite, fluorapatite] and fluorite. A F-Na rich fluid phase promoted strong albitization at late miarolitic stages, along with crystallization of extremely F-rich polylithionite and fluorite, and the formation of replacing pyrochlore group species associated with a second generation of cassiterite. The increase of the Ta# from hydroxycalciopyrochlore to hydroxycalciomicrolite and from micromiarolitic cassiterite (cassiterite 1) to hydrothermal cassiterite (cassiterite 2), supports Nb-Ta fractionation at hydrothermal temperatures. Carlosbarbosaite [(UO2)2Nb2O6(OH)2•2H2O] occurs as a pseudomorphic or as a short-range transported phase. Indigenous carlosbarbosaite formed after columbite-(Fe), U-free Nb-bearing ilmenite and likely after U-bearing pyrochlore supergroup species and a columbite group mineral, plausibly due to interaction with a hydrothermal-, U6+(±Nb±Ta)-enriched fluid, in some cases a SiO2-bearing fluid. This fluid likely represents a lower temperature, less alkaline and more oxidizing fluid that evolved from the higher temperature F-Na-rich fluids active during the late-miarolitic hydrothermal stage. Indigenous carlosbarbosaite has the ideal U-, Nb-rich endmember composition, though is significantly richer in Ca and poorer in total Nb+Ta but with higher Nb# than the one from the type locality. Supergene fluids deposited the transported type which attained economic concentrations in a fault zone where restricted-, likely alkaline oxidizing-conditions could have favored Nb mobility.Fil: Lira, Raul. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Mineralogía y Geología "Dr. A. Stelzner"; ArgentinaFil: Parra, Francisco. Comisión Nacional de Energía Atómica; ArgentinaFil: Biglia, Marco Esteban. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Mineralogía y Geología "Dr. A. Stelzner"; ArgentinaFil: Morello, Orquídea. Comisión Nacional de Energía Atómica; ArgentinaFil: Guereschi, Alina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaMineralogical Association of Canada2023-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/zipapplication/pdfhttp://hdl.handle.net/11336/226217Lira, Raul; Parra, Francisco; Biglia, Marco Esteban; Morello, Orquídea; Guereschi, Alina Beatriz; Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina; Mineralogical Association of Canada; The Canadian Journal of Mineralogy and Petrology; 61; 5; 9-2023; 927-9642817-1713CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/cjmp/article/61/5/927/628098/Genesis-and-New-Mineral-Chemistry-Data-ofinfo:eu-repo/semantics/altIdentifier/doi/10.3749/2300008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:01Zoai:ri.conicet.gov.ar:11336/226217instacron: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 10:47:02.14CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
title Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
spellingShingle Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
Lira, Raul
A-TYPE GRANITE
NYF MIAROLITIC PEGMATITES
FLUORINE-RICH
NIOBIUM MOBILITY
URANIUM
title_short Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
title_full Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
title_fullStr Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
title_full_unstemmed Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
title_sort Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina
dc.creator.none.fl_str_mv Lira, Raul
Parra, Francisco
Biglia, Marco Esteban
Morello, Orquídea
Guereschi, Alina Beatriz
author Lira, Raul
author_facet Lira, Raul
Parra, Francisco
Biglia, Marco Esteban
Morello, Orquídea
Guereschi, Alina Beatriz
author_role author
author2 Parra, Francisco
Biglia, Marco Esteban
Morello, Orquídea
Guereschi, Alina Beatriz
author2_role author
author
author
author
dc.subject.none.fl_str_mv A-TYPE GRANITE
NYF MIAROLITIC PEGMATITES
FLUORINE-RICH
NIOBIUM MOBILITY
URANIUM
topic A-TYPE GRANITE
NYF MIAROLITIC PEGMATITES
FLUORINE-RICH
NIOBIUM MOBILITY
URANIUM
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The La Chinchilla granite is a ~3.75 km2 epizonal pluton of Lower Carboniferous age located in Sierra de Velasco, Sierras Pampeanas, Argentina. Equigranular micropegmatitic and porphyritic main granite types host abundant millimeter-, to < 2 m-sized miarolitic pegmatites and pockets of simple major mineralogy (± beryl). Both granite types host micrometer sized accessory species [i.e., monazite-(Ce), several high field strength element oxide species, ilmenite, cassiterite, fluorapatite] and fluorite. A F-Na rich fluid phase promoted strong albitization at late miarolitic stages, along with crystallization of extremely F-rich polylithionite and fluorite, and the formation of replacing pyrochlore group species associated with a second generation of cassiterite. The increase of the Ta# from hydroxycalciopyrochlore to hydroxycalciomicrolite and from micromiarolitic cassiterite (cassiterite 1) to hydrothermal cassiterite (cassiterite 2), supports Nb-Ta fractionation at hydrothermal temperatures. Carlosbarbosaite [(UO2)2Nb2O6(OH)2•2H2O] occurs as a pseudomorphic or as a short-range transported phase. Indigenous carlosbarbosaite formed after columbite-(Fe), U-free Nb-bearing ilmenite and likely after U-bearing pyrochlore supergroup species and a columbite group mineral, plausibly due to interaction with a hydrothermal-, U6+(±Nb±Ta)-enriched fluid, in some cases a SiO2-bearing fluid. This fluid likely represents a lower temperature, less alkaline and more oxidizing fluid that evolved from the higher temperature F-Na-rich fluids active during the late-miarolitic hydrothermal stage. Indigenous carlosbarbosaite has the ideal U-, Nb-rich endmember composition, though is significantly richer in Ca and poorer in total Nb+Ta but with higher Nb# than the one from the type locality. Supergene fluids deposited the transported type which attained economic concentrations in a fault zone where restricted-, likely alkaline oxidizing-conditions could have favored Nb mobility.
Fil: Lira, Raul. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Mineralogía y Geología "Dr. A. Stelzner"; Argentina
Fil: Parra, Francisco. Comisión Nacional de Energía Atómica; Argentina
Fil: Biglia, Marco Esteban. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Mineralogía y Geología "Dr. A. Stelzner"; Argentina
Fil: Morello, Orquídea. Comisión Nacional de Energía Atómica; Argentina
Fil: Guereschi, Alina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
description The La Chinchilla granite is a ~3.75 km2 epizonal pluton of Lower Carboniferous age located in Sierra de Velasco, Sierras Pampeanas, Argentina. Equigranular micropegmatitic and porphyritic main granite types host abundant millimeter-, to < 2 m-sized miarolitic pegmatites and pockets of simple major mineralogy (± beryl). Both granite types host micrometer sized accessory species [i.e., monazite-(Ce), several high field strength element oxide species, ilmenite, cassiterite, fluorapatite] and fluorite. A F-Na rich fluid phase promoted strong albitization at late miarolitic stages, along with crystallization of extremely F-rich polylithionite and fluorite, and the formation of replacing pyrochlore group species associated with a second generation of cassiterite. The increase of the Ta# from hydroxycalciopyrochlore to hydroxycalciomicrolite and from micromiarolitic cassiterite (cassiterite 1) to hydrothermal cassiterite (cassiterite 2), supports Nb-Ta fractionation at hydrothermal temperatures. Carlosbarbosaite [(UO2)2Nb2O6(OH)2•2H2O] occurs as a pseudomorphic or as a short-range transported phase. Indigenous carlosbarbosaite formed after columbite-(Fe), U-free Nb-bearing ilmenite and likely after U-bearing pyrochlore supergroup species and a columbite group mineral, plausibly due to interaction with a hydrothermal-, U6+(±Nb±Ta)-enriched fluid, in some cases a SiO2-bearing fluid. This fluid likely represents a lower temperature, less alkaline and more oxidizing fluid that evolved from the higher temperature F-Na-rich fluids active during the late-miarolitic hydrothermal stage. Indigenous carlosbarbosaite has the ideal U-, Nb-rich endmember composition, though is significantly richer in Ca and poorer in total Nb+Ta but with higher Nb# than the one from the type locality. Supergene fluids deposited the transported type which attained economic concentrations in a fault zone where restricted-, likely alkaline oxidizing-conditions could have favored Nb mobility.
publishDate 2023
dc.date.none.fl_str_mv 2023-09
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/11336/226217
Lira, Raul; Parra, Francisco; Biglia, Marco Esteban; Morello, Orquídea; Guereschi, Alina Beatriz; Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina; Mineralogical Association of Canada; The Canadian Journal of Mineralogy and Petrology; 61; 5; 9-2023; 927-964
2817-1713
CONICET Digital
CONICET
url http://hdl.handle.net/11336/226217
identifier_str_mv Lira, Raul; Parra, Francisco; Biglia, Marco Esteban; Morello, Orquídea; Guereschi, Alina Beatriz; Genesis and new mineral chemistry data of carlosbarbosaite, a potential U and Nb ore source from miarolitic-, A-type granites and NYF pegmatites of the La Chinchilla pluton, Velasco ranges, La Rioja, Argentina; Mineralogical Association of Canada; The Canadian Journal of Mineralogy and Petrology; 61; 5; 9-2023; 927-964
2817-1713
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.3749/2300008
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/zip
application/pdf
dc.publisher.none.fl_str_mv Mineralogical Association of Canada
publisher.none.fl_str_mv Mineralogical Association of Canada
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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 13.069144

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