Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates

Autores
Ortí, Federico; Alonso, Ricardo Narciso
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper deals with sedimentologic and diagenetic aspects of the evaporitic fades of the Sijes Formation (Miocene, central Andes, NW Argentina), which contains the largest known hydroboracite reserves in the world. In outcrop, the sulfate minerals are secondary gypsum and minor anhydrite, and the borate minerals are hydroboracite with subordinate inyoite and colemanite, and some ulexite. In the Monte Amarillo Member of the Sijes Formation it is possible to distinguish two coeval, shallow lacustrine subbasins, in which the gypsum accumulated in the margins and the hydroboracite in the centers, the intermediate zones being characterized by mixed gypsum-hydroboracite layers. In the depositional sequence, primary gypsum (gypsarenite) and syndepositional anhydrite, in association with limited amounts of calcium borates (colemanite, inyoite) precipitated first, followed by hydroboracite (calcium/magnesium borate). Alternations of gypsum and hydroboracite layers also formed. Hydroboracite is mainly a primary mineral, although it replaced some gypsum under synsedimentary conditions. The formation of colemanite, which occurred during early diagenesis, is linked to the precipitation of calcium sulfates (gypsum and anhydrite), whereas inyoite coexists with both calcium sulfates and magnesium-bearing borates. Transformations among the various borate minerals during burial diagenesis were not detected. Primary gypsum was transformed into anhydrite from early diagenesis to moderate burial diagenesis. The boron source of these deposits seems to be related to the volcanic/hydrothermal activity in the central Andes during the Miocene.
Fil: Ortí, Federico. Universidad de Barcelona; España
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Materia
BORATE
HYDROBORACITE
GYPSUM
PUNA
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:11336/128858
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/128858
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing boratesOrtí, FedericoAlonso, Ricardo NarcisoBORATEHYDROBORACITEGYPSUMPUNAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This paper deals with sedimentologic and diagenetic aspects of the evaporitic fades of the Sijes Formation (Miocene, central Andes, NW Argentina), which contains the largest known hydroboracite reserves in the world. In outcrop, the sulfate minerals are secondary gypsum and minor anhydrite, and the borate minerals are hydroboracite with subordinate inyoite and colemanite, and some ulexite. In the Monte Amarillo Member of the Sijes Formation it is possible to distinguish two coeval, shallow lacustrine subbasins, in which the gypsum accumulated in the margins and the hydroboracite in the centers, the intermediate zones being characterized by mixed gypsum-hydroboracite layers. In the depositional sequence, primary gypsum (gypsarenite) and syndepositional anhydrite, in association with limited amounts of calcium borates (colemanite, inyoite) precipitated first, followed by hydroboracite (calcium/magnesium borate). Alternations of gypsum and hydroboracite layers also formed. Hydroboracite is mainly a primary mineral, although it replaced some gypsum under synsedimentary conditions. The formation of colemanite, which occurred during early diagenesis, is linked to the precipitation of calcium sulfates (gypsum and anhydrite), whereas inyoite coexists with both calcium sulfates and magnesium-bearing borates. Transformations among the various borate minerals during burial diagenesis were not detected. Primary gypsum was transformed into anhydrite from early diagenesis to moderate burial diagenesis. The boron source of these deposits seems to be related to the volcanic/hydrothermal activity in the central Andes during the Miocene.Fil: Ortí, Federico. Universidad de Barcelona; EspañaFil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaSociety for Sedimentary Geology2000-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128858Ortí, Federico; Alonso, Ricardo Narciso; Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates; Society for Sedimentary Geology; Journal of Sedimentary Research - (Print); 70; 3; 1-5-2000; 664-6811527-14041938-3681CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1306/2DC4092F-0E47-11D7-8643000102C1865Dinfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/jsedres/article-lookup/70/3/664info:eu-repo/semantics/altIdentifier/url/http://archives.datapages.com/data/sepm/journals/v70/data/070/070003/0664.htminfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:31Zoai:ri.conicet.gov.ar:11336/128858instacron: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 09:58:31.601CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
title Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
spellingShingle Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
Ortí, Federico
BORATE
HYDROBORACITE
GYPSUM
PUNA
title_short Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
title_full Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
title_fullStr Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
title_full_unstemmed Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
title_sort Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates
dc.creator.none.fl_str_mv Ortí, Federico
Alonso, Ricardo Narciso
author Ortí, Federico
author_facet Ortí, Federico
Alonso, Ricardo Narciso
author_role author
author2 Alonso, Ricardo Narciso
author2_role author
dc.subject.none.fl_str_mv BORATE
HYDROBORACITE
GYPSUM
PUNA
topic BORATE
HYDROBORACITE
GYPSUM
PUNA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This paper deals with sedimentologic and diagenetic aspects of the evaporitic fades of the Sijes Formation (Miocene, central Andes, NW Argentina), which contains the largest known hydroboracite reserves in the world. In outcrop, the sulfate minerals are secondary gypsum and minor anhydrite, and the borate minerals are hydroboracite with subordinate inyoite and colemanite, and some ulexite. In the Monte Amarillo Member of the Sijes Formation it is possible to distinguish two coeval, shallow lacustrine subbasins, in which the gypsum accumulated in the margins and the hydroboracite in the centers, the intermediate zones being characterized by mixed gypsum-hydroboracite layers. In the depositional sequence, primary gypsum (gypsarenite) and syndepositional anhydrite, in association with limited amounts of calcium borates (colemanite, inyoite) precipitated first, followed by hydroboracite (calcium/magnesium borate). Alternations of gypsum and hydroboracite layers also formed. Hydroboracite is mainly a primary mineral, although it replaced some gypsum under synsedimentary conditions. The formation of colemanite, which occurred during early diagenesis, is linked to the precipitation of calcium sulfates (gypsum and anhydrite), whereas inyoite coexists with both calcium sulfates and magnesium-bearing borates. Transformations among the various borate minerals during burial diagenesis were not detected. Primary gypsum was transformed into anhydrite from early diagenesis to moderate burial diagenesis. The boron source of these deposits seems to be related to the volcanic/hydrothermal activity in the central Andes during the Miocene.
Fil: Ortí, Federico. Universidad de Barcelona; España
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
description This paper deals with sedimentologic and diagenetic aspects of the evaporitic fades of the Sijes Formation (Miocene, central Andes, NW Argentina), which contains the largest known hydroboracite reserves in the world. In outcrop, the sulfate minerals are secondary gypsum and minor anhydrite, and the borate minerals are hydroboracite with subordinate inyoite and colemanite, and some ulexite. In the Monte Amarillo Member of the Sijes Formation it is possible to distinguish two coeval, shallow lacustrine subbasins, in which the gypsum accumulated in the margins and the hydroboracite in the centers, the intermediate zones being characterized by mixed gypsum-hydroboracite layers. In the depositional sequence, primary gypsum (gypsarenite) and syndepositional anhydrite, in association with limited amounts of calcium borates (colemanite, inyoite) precipitated first, followed by hydroboracite (calcium/magnesium borate). Alternations of gypsum and hydroboracite layers also formed. Hydroboracite is mainly a primary mineral, although it replaced some gypsum under synsedimentary conditions. The formation of colemanite, which occurred during early diagenesis, is linked to the precipitation of calcium sulfates (gypsum and anhydrite), whereas inyoite coexists with both calcium sulfates and magnesium-bearing borates. Transformations among the various borate minerals during burial diagenesis were not detected. Primary gypsum was transformed into anhydrite from early diagenesis to moderate burial diagenesis. The boron source of these deposits seems to be related to the volcanic/hydrothermal activity in the central Andes during the Miocene.
publishDate 2000
dc.date.none.fl_str_mv 2000-05-01
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/11336/128858
Ortí, Federico; Alonso, Ricardo Narciso; Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates; Society for Sedimentary Geology; Journal of Sedimentary Research - (Print); 70; 3; 1-5-2000; 664-681
1527-1404
1938-3681
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128858
identifier_str_mv Ortí, Federico; Alonso, Ricardo Narciso; Gypsum-hydroboracite association in the sues formation (Miocene, NW Argentina): implications for the genesis of Mg-bearing borates; Society for Sedimentary Geology; Journal of Sedimentary Research - (Print); 70; 3; 1-5-2000; 664-681
1527-1404
1938-3681
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1306/2DC4092F-0E47-11D7-8643000102C1865D
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/jsedres/article-lookup/70/3/664
info:eu-repo/semantics/altIdentifier/url/http://archives.datapages.com/data/sepm/journals/v70/data/070/070003/0664.htm
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
dc.publisher.none.fl_str_mv Society for Sedimentary Geology
publisher.none.fl_str_mv Society for Sedimentary Geology
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 13.13397

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