Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina

Autores
Sial, Alcides N.; Ferreira, Valderez P.; Martins Pimentel, Márcio; Toselli, Alejandro Jose; Aceñolaza, Florencio Gilberto; Alonso, Ricardo Narciso; Parada, Miguel A.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Carbonates of the Las Tienditas Fm., Salta province, recorded the Vendian-Tommotian transition in the top of this carbonate sequence, while carbonates of La Laja Fm., San Juan, recorded this transition next to the base of the Formation. C, 87Sr/86Sr, Si, Mg/Ca, Mn, Fe and Si chemostratigraphic profiles in the uppermost portion of Las Tienditas are very similar to those for the lowermost portions of La Laja Formation, suggesting synchronous deposition. C values ( 0 º/ooPDB) in carbonate lenses of the Caucete Group, Pie-de-Palo complex, coupled with high 87Sr/86Sr (0.709 to 0.710) and presence of Vendian ichnofauna suggest that sediments of this Group were, perhaps, deposited synchronically with carbonates of the La Laja Fm. The high 87Sr/86Sr for all of the Formations studied resulted from the nature of the continental crust (high Rb/Sr, or very ancient crust, or both) being eroded during the time of deposition of these marine carbonates. The moderate shift of C from +1 º/ooPDB to -2 º/ooPDB in this Vendian-Tommotian transition contrasts with strong shifts observed in most localities in the world. Similar behavior has been observed in Siberia and a shift from +5 º/ooPDB to +2.7 º/ooPDB was recorded in Bhander and Sirbu limestones, Vindhyan basin in India. These observations demonstrate a nonuniform isotopic behavior of the Vendian-Tommotian transition, at least, for continents that once were part of Gondwanaland. — ( May 18, 2001 )
Fil: Sial, Alcides N.. Universidade Federal de Pernambuco; Brasil
Fil: Ferreira, Valderez P.. Universidade Federal de Pernambuco; Brasil
Fil: Martins Pimentel, Márcio. Universidade do Brasília; Brasil
Fil: Toselli, Alejandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Aceñolaza, Florencio Gilberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Parada, Miguel A.. Universidad de Chile; Chile
Materia
ISOTOPES
CARBON
STRONTIUM
VENDIAN
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/128977
Acceder
id CONICETDig_e66529acadf55186536e122842f321b3
oai_identifier_str oai:ri.conicet.gov.ar:11336/128977
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Carbon and strontium isotope record on the vendian-tommotian transition in the NW ArgentinaSial, Alcides N.Ferreira, Valderez P.Martins Pimentel, MárcioToselli, Alejandro JoseAceñolaza, Florencio GilbertoAlonso, Ricardo NarcisoParada, Miguel A.ISOTOPESCARBONSTRONTIUMVENDIANhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Carbonates of the Las Tienditas Fm., Salta province, recorded the Vendian-Tommotian transition in the top of this carbonate sequence, while carbonates of La Laja Fm., San Juan, recorded this transition next to the base of the Formation. C, 87Sr/86Sr, Si, Mg/Ca, Mn, Fe and Si chemostratigraphic profiles in the uppermost portion of Las Tienditas are very similar to those for the lowermost portions of La Laja Formation, suggesting synchronous deposition. C values ( 0 º/ooPDB) in carbonate lenses of the Caucete Group, Pie-de-Palo complex, coupled with high 87Sr/86Sr (0.709 to 0.710) and presence of Vendian ichnofauna suggest that sediments of this Group were, perhaps, deposited synchronically with carbonates of the La Laja Fm. The high 87Sr/86Sr for all of the Formations studied resulted from the nature of the continental crust (high Rb/Sr, or very ancient crust, or both) being eroded during the time of deposition of these marine carbonates. The moderate shift of C from +1 º/ooPDB to -2 º/ooPDB in this Vendian-Tommotian transition contrasts with strong shifts observed in most localities in the world. Similar behavior has been observed in Siberia and a shift from +5 º/ooPDB to +2.7 º/ooPDB was recorded in Bhander and Sirbu limestones, Vindhyan basin in India. These observations demonstrate a nonuniform isotopic behavior of the Vendian-Tommotian transition, at least, for continents that once were part of Gondwanaland. — ( May 18, 2001 )Fil: Sial, Alcides N.. Universidade Federal de Pernambuco; BrasilFil: Ferreira, Valderez P.. Universidade Federal de Pernambuco; BrasilFil: Martins Pimentel, Márcio. Universidade do Brasília; BrasilFil: Toselli, Alejandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Aceñolaza, Florencio Gilberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: Parada, Miguel A.. Universidad de Chile; ChileAcademia Brasileira de Ciencias2001-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128977Sial, Alcides N.; Ferreira, Valderez P.; Martins Pimentel, Márcio; Toselli, Alejandro Jose; Aceñolaza, Florencio Gilberto; et al.; Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina; Academia Brasileira de Ciencias; Anais da Academia Brasileira de Ciencias; 73; 3; 9-2001; 471-4711678-26900001-3765CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1590/S0001-37652001000300031info:eu-repo/semantics/altIdentifier/url/https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000300031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:58Zoai:ri.conicet.gov.ar:11336/128977instacron: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 10:01:58.555CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
title Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
spellingShingle Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
Sial, Alcides N.
ISOTOPES
CARBON
STRONTIUM
VENDIAN
title_short Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
title_full Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
title_fullStr Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
title_full_unstemmed Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
title_sort Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina
dc.creator.none.fl_str_mv Sial, Alcides N.
Ferreira, Valderez P.
Martins Pimentel, Márcio
Toselli, Alejandro Jose
Aceñolaza, Florencio Gilberto
Alonso, Ricardo Narciso
Parada, Miguel A.
author Sial, Alcides N.
author_facet Sial, Alcides N.
Ferreira, Valderez P.
Martins Pimentel, Márcio
Toselli, Alejandro Jose
Aceñolaza, Florencio Gilberto
Alonso, Ricardo Narciso
Parada, Miguel A.
author_role author
author2 Ferreira, Valderez P.
Martins Pimentel, Márcio
Toselli, Alejandro Jose
Aceñolaza, Florencio Gilberto
Alonso, Ricardo Narciso
Parada, Miguel A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ISOTOPES
CARBON
STRONTIUM
VENDIAN
topic ISOTOPES
CARBON
STRONTIUM
VENDIAN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Carbonates of the Las Tienditas Fm., Salta province, recorded the Vendian-Tommotian transition in the top of this carbonate sequence, while carbonates of La Laja Fm., San Juan, recorded this transition next to the base of the Formation. C, 87Sr/86Sr, Si, Mg/Ca, Mn, Fe and Si chemostratigraphic profiles in the uppermost portion of Las Tienditas are very similar to those for the lowermost portions of La Laja Formation, suggesting synchronous deposition. C values ( 0 º/ooPDB) in carbonate lenses of the Caucete Group, Pie-de-Palo complex, coupled with high 87Sr/86Sr (0.709 to 0.710) and presence of Vendian ichnofauna suggest that sediments of this Group were, perhaps, deposited synchronically with carbonates of the La Laja Fm. The high 87Sr/86Sr for all of the Formations studied resulted from the nature of the continental crust (high Rb/Sr, or very ancient crust, or both) being eroded during the time of deposition of these marine carbonates. The moderate shift of C from +1 º/ooPDB to -2 º/ooPDB in this Vendian-Tommotian transition contrasts with strong shifts observed in most localities in the world. Similar behavior has been observed in Siberia and a shift from +5 º/ooPDB to +2.7 º/ooPDB was recorded in Bhander and Sirbu limestones, Vindhyan basin in India. These observations demonstrate a nonuniform isotopic behavior of the Vendian-Tommotian transition, at least, for continents that once were part of Gondwanaland. — ( May 18, 2001 )
Fil: Sial, Alcides N.. Universidade Federal de Pernambuco; Brasil
Fil: Ferreira, Valderez P.. Universidade Federal de Pernambuco; Brasil
Fil: Martins Pimentel, Márcio. Universidade do Brasília; Brasil
Fil: Toselli, Alejandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Aceñolaza, Florencio Gilberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina
Fil: Parada, Miguel A.. Universidad de Chile; Chile
description Carbonates of the Las Tienditas Fm., Salta province, recorded the Vendian-Tommotian transition in the top of this carbonate sequence, while carbonates of La Laja Fm., San Juan, recorded this transition next to the base of the Formation. C, 87Sr/86Sr, Si, Mg/Ca, Mn, Fe and Si chemostratigraphic profiles in the uppermost portion of Las Tienditas are very similar to those for the lowermost portions of La Laja Formation, suggesting synchronous deposition. C values ( 0 º/ooPDB) in carbonate lenses of the Caucete Group, Pie-de-Palo complex, coupled with high 87Sr/86Sr (0.709 to 0.710) and presence of Vendian ichnofauna suggest that sediments of this Group were, perhaps, deposited synchronically with carbonates of the La Laja Fm. The high 87Sr/86Sr for all of the Formations studied resulted from the nature of the continental crust (high Rb/Sr, or very ancient crust, or both) being eroded during the time of deposition of these marine carbonates. The moderate shift of C from +1 º/ooPDB to -2 º/ooPDB in this Vendian-Tommotian transition contrasts with strong shifts observed in most localities in the world. Similar behavior has been observed in Siberia and a shift from +5 º/ooPDB to +2.7 º/ooPDB was recorded in Bhander and Sirbu limestones, Vindhyan basin in India. These observations demonstrate a nonuniform isotopic behavior of the Vendian-Tommotian transition, at least, for continents that once were part of Gondwanaland. — ( May 18, 2001 )
publishDate 2001
dc.date.none.fl_str_mv 2001-09
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/11336/128977
Sial, Alcides N.; Ferreira, Valderez P.; Martins Pimentel, Márcio; Toselli, Alejandro Jose; Aceñolaza, Florencio Gilberto; et al.; Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina; Academia Brasileira de Ciencias; Anais da Academia Brasileira de Ciencias; 73; 3; 9-2001; 471-471
1678-2690
0001-3765
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128977
identifier_str_mv Sial, Alcides N.; Ferreira, Valderez P.; Martins Pimentel, Márcio; Toselli, Alejandro Jose; Aceñolaza, Florencio Gilberto; et al.; Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina; Academia Brasileira de Ciencias; Anais da Academia Brasileira de Ciencias; 73; 3; 9-2001; 471-471
1678-2690
0001-3765
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1590/S0001-37652001000300031
info:eu-repo/semantics/altIdentifier/url/https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000300031
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academia Brasileira de Ciencias
publisher.none.fl_str_mv Academia Brasileira de Ciencias
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_ 1842269727858098176
score 13.13397

Publicaciones similares