Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic

Autores
Albarracin, Paula; García Chapori, Natalia; Cecilia Laprida; Martín, Rodrigo Sebastian; Díaz, Germán Ricardo; Groeneveld, Jeroen
Año de publicación
2023
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Planktonic foraminifera are marine microorganisms that play a crucial role in paleoceanographicreconstructions. The measurement of trace elements and their ratios in foraminiferal shells have provento be valuable proxies for studying past oceanic conditions. In particular, the Ba/Ca ratio has been linkedto various environmental conditions such as surface primary productivity, seawater Ba concentrationand fresh water input. Therefore, the calibration between the Ba/Ca ratio and the parameter to bereconstructed results essential for robust interpretations of past oceanographic parameters and climateconditions. Accurate calibrations enhance not only our understanding of historical oceanic conditions,but also the role of trace elements in marine ecosystem.This study focuses on analyzing surface sediment samples from the western South Atlantic between33°S and 47°S to assess the potential of Ba/Ca ratios measured on planktonic foraminifera as apaleoproductivity proxy. In order to do this, non-encrusted shells of Globoconella inflata were carefullycrushed and cleaned following the standard cleaning procedure for trace elements analysis offoraminifera. Export productivity flux data (molC/m2/yr) were obtained from the SIMPLE-TRIM model forthe same samples, and hence a regression analysis was applied.Our results revealed a positive correlation (r2=0.53) between the Ba/Ca ratios and the productivity fluxdata highlighting its potential use as a proxy of paleoproductivity in the region. Higher Ba/Ca ratiosmeasured in G. inflata correspond to sites of higher productivity, while lower ratios correspond to siteswith lower productivity. A positive correlation between export production and Ba/Ca ratios has also beenrecorded on N. dutertrei and P. obliquiloculata shells from sediment traps and core-top samples of theEquatorial Pacific suggesting that increased Ba/Ca ratios in the non-spinose species are the result ofcalcification occurring in Ba-enriched particulate organic matter.The results obtained here contribute to refine the reconstruction of long-term past oceanographicchanges in the western South Atlantic by improving our ability to reconstruct past productivity conditions.Additionally, the insights gained here contribute to the development of more accurate models forpredicting future changes in productivity and upwelling patterns in this region. However, it is necessaryfurther research to expand our understanding of the specific mechanism driving Ba incorporation intothe planktonic foraminiferal shells.
Fil: Albarracin, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: García Chapori, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Cecilia Laprida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Martín, Rodrigo Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Díaz, Germán Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Groeneveld, Jeroen. No especifíca;
XVIII Reunión Argentina de Sedimentología y IX Congreso Latinoamericano de Sedimentología
Argentina
Asociación Argentina de Sedimentología
Materia
Bario
Oceanografía
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:11336/222905
Acceder
id CONICETDig_51222042e4099a36655fed2af854c9a2
oai_identifier_str oai:ri.conicet.gov.ar:11336/222905
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Planktonic foraminifera ba/ca as productivity proxy in western South AtlanticAlbarracin, PaulaGarcía Chapori, NataliaCecilia LapridaMartín, Rodrigo SebastianDíaz, Germán RicardoGroeneveld, JeroenBarioOceanografíahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Planktonic foraminifera are marine microorganisms that play a crucial role in paleoceanographicreconstructions. The measurement of trace elements and their ratios in foraminiferal shells have provento be valuable proxies for studying past oceanic conditions. In particular, the Ba/Ca ratio has been linkedto various environmental conditions such as surface primary productivity, seawater Ba concentrationand fresh water input. Therefore, the calibration between the Ba/Ca ratio and the parameter to bereconstructed results essential for robust interpretations of past oceanographic parameters and climateconditions. Accurate calibrations enhance not only our understanding of historical oceanic conditions,but also the role of trace elements in marine ecosystem.This study focuses on analyzing surface sediment samples from the western South Atlantic between33°S and 47°S to assess the potential of Ba/Ca ratios measured on planktonic foraminifera as apaleoproductivity proxy. In order to do this, non-encrusted shells of Globoconella inflata were carefullycrushed and cleaned following the standard cleaning procedure for trace elements analysis offoraminifera. Export productivity flux data (molC/m2/yr) were obtained from the SIMPLE-TRIM model forthe same samples, and hence a regression analysis was applied.Our results revealed a positive correlation (r2=0.53) between the Ba/Ca ratios and the productivity fluxdata highlighting its potential use as a proxy of paleoproductivity in the region. Higher Ba/Ca ratiosmeasured in G. inflata correspond to sites of higher productivity, while lower ratios correspond to siteswith lower productivity. A positive correlation between export production and Ba/Ca ratios has also beenrecorded on N. dutertrei and P. obliquiloculata shells from sediment traps and core-top samples of theEquatorial Pacific suggesting that increased Ba/Ca ratios in the non-spinose species are the result ofcalcification occurring in Ba-enriched particulate organic matter.The results obtained here contribute to refine the reconstruction of long-term past oceanographicchanges in the western South Atlantic by improving our ability to reconstruct past productivity conditions.Additionally, the insights gained here contribute to the development of more accurate models forpredicting future changes in productivity and upwelling patterns in this region. However, it is necessaryfurther research to expand our understanding of the specific mechanism driving Ba incorporation intothe planktonic foraminiferal shells.Fil: Albarracin, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: García Chapori, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Cecilia Laprida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Martín, Rodrigo Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Díaz, Germán Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Groeneveld, Jeroen. No especifíca;XVIII Reunión Argentina de Sedimentología y IX Congreso Latinoamericano de SedimentologíaArgentinaAsociación Argentina de SedimentologíaAsociación Argentina de Sedimentología2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/222905Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic; XVIII Reunión Argentina de Sedimentología y IX Congreso Latinoamericano de Sedimentología; Argentina; 2023; 154-154978-631-90299-0-1CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/https://www.ras2023laplata.com/_files/ugd/0306a6_7fd69ea257d34faf86f5d4d284533dc9.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:06:42Zoai:ri.conicet.gov.ar:11336/222905instacron: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:34982025-10-22 11:06:42.313CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
title Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
spellingShingle Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
Albarracin, Paula
Bario
Oceanografía
title_short Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
title_full Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
title_fullStr Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
title_full_unstemmed Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
title_sort Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic
dc.creator.none.fl_str_mv Albarracin, Paula
García Chapori, Natalia
Cecilia Laprida
Martín, Rodrigo Sebastian
Díaz, Germán Ricardo
Groeneveld, Jeroen
author Albarracin, Paula
author_facet Albarracin, Paula
García Chapori, Natalia
Cecilia Laprida
Martín, Rodrigo Sebastian
Díaz, Germán Ricardo
Groeneveld, Jeroen
author_role author
author2 García Chapori, Natalia
Cecilia Laprida
Martín, Rodrigo Sebastian
Díaz, Germán Ricardo
Groeneveld, Jeroen
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Bario
Oceanografía
topic Bario
Oceanografía
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Planktonic foraminifera are marine microorganisms that play a crucial role in paleoceanographicreconstructions. The measurement of trace elements and their ratios in foraminiferal shells have provento be valuable proxies for studying past oceanic conditions. In particular, the Ba/Ca ratio has been linkedto various environmental conditions such as surface primary productivity, seawater Ba concentrationand fresh water input. Therefore, the calibration between the Ba/Ca ratio and the parameter to bereconstructed results essential for robust interpretations of past oceanographic parameters and climateconditions. Accurate calibrations enhance not only our understanding of historical oceanic conditions,but also the role of trace elements in marine ecosystem.This study focuses on analyzing surface sediment samples from the western South Atlantic between33°S and 47°S to assess the potential of Ba/Ca ratios measured on planktonic foraminifera as apaleoproductivity proxy. In order to do this, non-encrusted shells of Globoconella inflata were carefullycrushed and cleaned following the standard cleaning procedure for trace elements analysis offoraminifera. Export productivity flux data (molC/m2/yr) were obtained from the SIMPLE-TRIM model forthe same samples, and hence a regression analysis was applied.Our results revealed a positive correlation (r2=0.53) between the Ba/Ca ratios and the productivity fluxdata highlighting its potential use as a proxy of paleoproductivity in the region. Higher Ba/Ca ratiosmeasured in G. inflata correspond to sites of higher productivity, while lower ratios correspond to siteswith lower productivity. A positive correlation between export production and Ba/Ca ratios has also beenrecorded on N. dutertrei and P. obliquiloculata shells from sediment traps and core-top samples of theEquatorial Pacific suggesting that increased Ba/Ca ratios in the non-spinose species are the result ofcalcification occurring in Ba-enriched particulate organic matter.The results obtained here contribute to refine the reconstruction of long-term past oceanographicchanges in the western South Atlantic by improving our ability to reconstruct past productivity conditions.Additionally, the insights gained here contribute to the development of more accurate models forpredicting future changes in productivity and upwelling patterns in this region. However, it is necessaryfurther research to expand our understanding of the specific mechanism driving Ba incorporation intothe planktonic foraminiferal shells.
Fil: Albarracin, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: García Chapori, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Cecilia Laprida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Martín, Rodrigo Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Díaz, Germán Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Groeneveld, Jeroen. No especifíca;
XVIII Reunión Argentina de Sedimentología y IX Congreso Latinoamericano de Sedimentología
Argentina
Asociación Argentina de Sedimentología
description Planktonic foraminifera are marine microorganisms that play a crucial role in paleoceanographicreconstructions. The measurement of trace elements and their ratios in foraminiferal shells have provento be valuable proxies for studying past oceanic conditions. In particular, the Ba/Ca ratio has been linkedto various environmental conditions such as surface primary productivity, seawater Ba concentrationand fresh water input. Therefore, the calibration between the Ba/Ca ratio and the parameter to bereconstructed results essential for robust interpretations of past oceanographic parameters and climateconditions. Accurate calibrations enhance not only our understanding of historical oceanic conditions,but also the role of trace elements in marine ecosystem.This study focuses on analyzing surface sediment samples from the western South Atlantic between33°S and 47°S to assess the potential of Ba/Ca ratios measured on planktonic foraminifera as apaleoproductivity proxy. In order to do this, non-encrusted shells of Globoconella inflata were carefullycrushed and cleaned following the standard cleaning procedure for trace elements analysis offoraminifera. Export productivity flux data (molC/m2/yr) were obtained from the SIMPLE-TRIM model forthe same samples, and hence a regression analysis was applied.Our results revealed a positive correlation (r2=0.53) between the Ba/Ca ratios and the productivity fluxdata highlighting its potential use as a proxy of paleoproductivity in the region. Higher Ba/Ca ratiosmeasured in G. inflata correspond to sites of higher productivity, while lower ratios correspond to siteswith lower productivity. A positive correlation between export production and Ba/Ca ratios has also beenrecorded on N. dutertrei and P. obliquiloculata shells from sediment traps and core-top samples of theEquatorial Pacific suggesting that increased Ba/Ca ratios in the non-spinose species are the result ofcalcification occurring in Ba-enriched particulate organic matter.The results obtained here contribute to refine the reconstruction of long-term past oceanographicchanges in the western South Atlantic by improving our ability to reconstruct past productivity conditions.Additionally, the insights gained here contribute to the development of more accurate models forpredicting future changes in productivity and upwelling patterns in this region. However, it is necessaryfurther research to expand our understanding of the specific mechanism driving Ba incorporation intothe planktonic foraminiferal shells.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/222905
Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic; XVIII Reunión Argentina de Sedimentología y IX Congreso Latinoamericano de Sedimentología; Argentina; 2023; 154-154
978-631-90299-0-1
CONICET Digital
CONICET
url http://hdl.handle.net/11336/222905
identifier_str_mv Planktonic foraminifera ba/ca as productivity proxy in western South Atlantic; XVIII Reunión Argentina de Sedimentología y IX Congreso Latinoamericano de Sedimentología; Argentina; 2023; 154-154
978-631-90299-0-1
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.ras2023laplata.com/_files/ugd/0306a6_7fd69ea257d34faf86f5d4d284533dc9.pdf
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
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Asociación Argentina de Sedimentología
publisher.none.fl_str_mv Asociación Argentina de Sedimentología
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_ 1846781370306658304
score 12.982451

Publicaciones similares