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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/226217
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oai:ri.conicet.gov.ar:11336/226217 |
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CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
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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 Técnicas2025-09-03T10:11:51Zoai: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:34982025-09-03 10:11:51.637CONICET 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 |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/cjmp/article/61/5/927/628098/Genesis-and-New-Mineral-Chemistry-Data-of 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) |
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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1842270173360291840 |
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13.13397 |