Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina

Autores
Irurzun, Maria Alicia; Gonzalez Bonorino, Gustavo; Gogorza, Claudia Susana; Hall, Sarah; del Valle Abascal, Liliana; Alonso, Ricardo Narciso; Larcher, Nicolás Ezequiel
Año de publicación
2014
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper presents a detailed study of rock magnetism in lacustrine sediments from three sample sequences from the Pleistocene Tajamar Formation, exposed in an outcrop near the locality of Guachipas (25º31.0´S 65°30.5'W), in Salta Province, Argentina. The studied sediments are located in the drainage of the Guachipas River, which drains Meso-Cenozoic outcrops that border the southern end of the Lerma Valley.The studied samples showed a stable remanent magnetization that was obtained after removing a viscous remanent magnetization with alternating fields of about 10-15 mT. The magnetic properties indicate that the main carrier of remanence is magnetite with the presence of hematite in different percentages. Magnetite samples have magnetic grain sizes between 4 and 16 mm. The magnetic concentration parameters have the same variations as the stable remanent magnetization suggesting the signal is dominated by this magnetic parameter. Based on this, the relative paleointensities were calculated using the normalization method. In order to obtain an approximate age for the deposits, the relative paleointensity curve of Guachipas was compared with the SINT800 curve using different correlation windows. The best correlation was obtained with the window 40 - 200 ky BP.
Fil: Irurzun, Maria Alicia. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Gonzalez Bonorino, Gustavo. Universidad Tecnológica Nacional. Facultad Regional Río Grande; Argentina
Fil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Hall, Sarah. College of the Atlantic; Estados Unidos
Fil: del Valle Abascal, Liliana. Universidad Tecnológica Nacional. Facultad Regional Río Grande; Argentina
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Larcher, Nicolás Ezequiel. Mina Pirquitas Inc.; Argentina
Materia
Rock magnetism
Paleomagnetism
Dating method
South America
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:11336/4679
Acceder
id CONICETDig_e64a151417e87fc3215bbcc93745a86f
oai_identifier_str oai:ri.conicet.gov.ar:11336/4679
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta ArgentinaIrurzun, Maria AliciaGonzalez Bonorino, GustavoGogorza, Claudia SusanaHall, Sarahdel Valle Abascal, LilianaAlonso, Ricardo NarcisoLarcher, Nicolás EzequielRock magnetismPaleomagnetismDating methodSouth Americahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This paper presents a detailed study of rock magnetism in lacustrine sediments from three sample sequences from the Pleistocene Tajamar Formation, exposed in an outcrop near the locality of Guachipas (25º31.0´S 65°30.5'W), in Salta Province, Argentina. The studied sediments are located in the drainage of the Guachipas River, which drains Meso-Cenozoic outcrops that border the southern end of the Lerma Valley.The studied samples showed a stable remanent magnetization that was obtained after removing a viscous remanent magnetization with alternating fields of about 10-15 mT. The magnetic properties indicate that the main carrier of remanence is magnetite with the presence of hematite in different percentages. Magnetite samples have magnetic grain sizes between 4 and 16 mm. The magnetic concentration parameters have the same variations as the stable remanent magnetization suggesting the signal is dominated by this magnetic parameter. Based on this, the relative paleointensities were calculated using the normalization method. In order to obtain an approximate age for the deposits, the relative paleointensity curve of Guachipas was compared with the SINT800 curve using different correlation windows. The best correlation was obtained with the window 40 - 200 ky BP.Fil: Irurzun, Maria Alicia. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Gonzalez Bonorino, Gustavo. Universidad Tecnológica Nacional. Facultad Regional Río Grande; ArgentinaFil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Hall, Sarah. College of the Atlantic; Estados UnidosFil: del Valle Abascal, Liliana. Universidad Tecnológica Nacional. Facultad Regional Río Grande; ArgentinaFil: Alonso, Ricardo Narciso. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Larcher, Nicolás Ezequiel. Mina Pirquitas Inc.; ArgentinaUniversidad Nacional Autónoma de México2014-11info: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/11336/4679Irurzun, Maria Alicia; Gonzalez Bonorino, Gustavo; Gogorza, Claudia Susana; Hall, Sarah; del Valle Abascal, Liliana; et al.; Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina; Universidad Nacional Autónoma de México; Latinmag Letters; 4; 4; 11-2014; 1-182007-9656spainfo:eu-repo/semantics/altIdentifier/ark/http://www.geofisica.unam.mx/LatinmagLetters/files/LM14-0404Rs.pdfinfo:eu-repo/semantics/altIdentifier/issn/2007-9656info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:22Zoai:ri.conicet.gov.ar:11336/4679instacron: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 10:09:22.751CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
title Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
spellingShingle Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
Irurzun, Maria Alicia
Rock magnetism
Paleomagnetism
Dating method
South America
title_short Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
title_full Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
title_fullStr Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
title_full_unstemmed Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
title_sort Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina
dc.creator.none.fl_str_mv Irurzun, Maria Alicia
Gonzalez Bonorino, Gustavo
Gogorza, Claudia Susana
Hall, Sarah
del Valle Abascal, Liliana
Alonso, Ricardo Narciso
Larcher, Nicolás Ezequiel
author Irurzun, Maria Alicia
author_facet Irurzun, Maria Alicia
Gonzalez Bonorino, Gustavo
Gogorza, Claudia Susana
Hall, Sarah
del Valle Abascal, Liliana
Alonso, Ricardo Narciso
Larcher, Nicolás Ezequiel
author_role author
author2 Gonzalez Bonorino, Gustavo
Gogorza, Claudia Susana
Hall, Sarah
del Valle Abascal, Liliana
Alonso, Ricardo Narciso
Larcher, Nicolás Ezequiel
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Rock magnetism
Paleomagnetism
Dating method
South America
topic Rock magnetism
Paleomagnetism
Dating method
South America
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 presents a detailed study of rock magnetism in lacustrine sediments from three sample sequences from the Pleistocene Tajamar Formation, exposed in an outcrop near the locality of Guachipas (25º31.0´S 65°30.5'W), in Salta Province, Argentina. The studied sediments are located in the drainage of the Guachipas River, which drains Meso-Cenozoic outcrops that border the southern end of the Lerma Valley.The studied samples showed a stable remanent magnetization that was obtained after removing a viscous remanent magnetization with alternating fields of about 10-15 mT. The magnetic properties indicate that the main carrier of remanence is magnetite with the presence of hematite in different percentages. Magnetite samples have magnetic grain sizes between 4 and 16 mm. The magnetic concentration parameters have the same variations as the stable remanent magnetization suggesting the signal is dominated by this magnetic parameter. Based on this, the relative paleointensities were calculated using the normalization method. In order to obtain an approximate age for the deposits, the relative paleointensity curve of Guachipas was compared with the SINT800 curve using different correlation windows. The best correlation was obtained with the window 40 - 200 ky BP.
Fil: Irurzun, Maria Alicia. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Gonzalez Bonorino, Gustavo. Universidad Tecnológica Nacional. Facultad Regional Río Grande; Argentina
Fil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Hall, Sarah. College of the Atlantic; Estados Unidos
Fil: del Valle Abascal, Liliana. Universidad Tecnológica Nacional. Facultad Regional Río Grande; Argentina
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Larcher, Nicolás Ezequiel. Mina Pirquitas Inc.; Argentina
description This paper presents a detailed study of rock magnetism in lacustrine sediments from three sample sequences from the Pleistocene Tajamar Formation, exposed in an outcrop near the locality of Guachipas (25º31.0´S 65°30.5'W), in Salta Province, Argentina. The studied sediments are located in the drainage of the Guachipas River, which drains Meso-Cenozoic outcrops that border the southern end of the Lerma Valley.The studied samples showed a stable remanent magnetization that was obtained after removing a viscous remanent magnetization with alternating fields of about 10-15 mT. The magnetic properties indicate that the main carrier of remanence is magnetite with the presence of hematite in different percentages. Magnetite samples have magnetic grain sizes between 4 and 16 mm. The magnetic concentration parameters have the same variations as the stable remanent magnetization suggesting the signal is dominated by this magnetic parameter. Based on this, the relative paleointensities were calculated using the normalization method. In order to obtain an approximate age for the deposits, the relative paleointensity curve of Guachipas was compared with the SINT800 curve using different correlation windows. The best correlation was obtained with the window 40 - 200 ky BP.
publishDate 2014
dc.date.none.fl_str_mv 2014-11
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/11336/4679
Irurzun, Maria Alicia; Gonzalez Bonorino, Gustavo; Gogorza, Claudia Susana; Hall, Sarah; del Valle Abascal, Liliana; et al.; Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina; Universidad Nacional Autónoma de México; Latinmag Letters; 4; 4; 11-2014; 1-18
2007-9656
url http://hdl.handle.net/11336/4679
identifier_str_mv Irurzun, Maria Alicia; Gonzalez Bonorino, Gustavo; Gogorza, Claudia Susana; Hall, Sarah; del Valle Abascal, Liliana; et al.; Caracterización magnética y datación preliminar mediante paleointensidades relativas de sedimentos lacustres de la Formación Tajamar (Guachipas), Salta Argentina; Universidad Nacional Autónoma de México; Latinmag Letters; 4; 4; 11-2014; 1-18
2007-9656
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/ark/http://www.geofisica.unam.mx/LatinmagLetters/files/LM14-0404Rs.pdf
info:eu-repo/semantics/altIdentifier/issn/2007-9656
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 Universidad Nacional Autónoma de México
publisher.none.fl_str_mv Universidad Nacional Autónoma de México
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
_version_ 1842270078186291200
score 13.13397

Publicaciones similares