Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques

Autores
Ludwig, P.; Egli, R.; Bishop, S.; Chernenko, V.; Frederichs, T.; Rugel, G.; Merchel, S.; Orgeira, Maria Julia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a novel technique for quantitative unmixing of primary and secondary ferrimagnetic minerals in sediments. Hysteresis and high-resolution first-order reversal curve (FORC) measurements are performed on sediment samples before and after digestion in a citrate–bicarbonate–dithionite (CBD) solution optimized for maximum selective extraction of secondary fine-grained iron oxides. The difference between magnetic measurements of untreated and CBD-treated sample materials is used to calculate the original magnetic signature of CBD-extractable minerals. A combination of selective chemical extraction and magnetic measurements suited for the detection of single-domain particles provides a cross-check between chemical and magnetic unmixing of primary and secondary iron oxides and resolves the non-uniqueness problem of numerical unmixing methods. A quantitative magnetic characterization of secondary ferrimagnetic minerals in a magnetofossil-rich pelagic carbonate is presented for the first time. It can be used for calibration of recently developed fast magnetic unmixing techniques. CBD-based Fe extraction from sediments with minimal clastic and/or aeolian inputs, such as pelagic carbonates, is particularly suited for the search for cosmogenic 60Fe signatures from supernova explosions, because 60Fe dilution by dissolved primary Fe-bearing minerals is minimized.
Fil: Ludwig, P.. Technische Universitat Munchen; Alemania
Fil: Egli, R.. Central Institute for Meteorology and Geodynamics; Austria
Fil: Bishop, S.. Technische Universitat Munchen; Alemania
Fil: Chernenko, V.. Technische Universitat Munchen; Alemania
Fil: Frederichs, T.. Universitat Bremen; Alemania
Fil: Rugel, G.. Helmholtz-Zentrum; Alemania
Fil: Merchel, S.. Helmholtz-Zentrum; Alemania
Fil: Orgeira, Maria Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Materia
Magnetism
Magnetite
Marine Sediments
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/18561
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/18561
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniquesLudwig, P.Egli, R.Bishop, S.Chernenko, V.Frederichs, T.Rugel, G.Merchel, S.Orgeira, Maria JuliaMagnetismMagnetiteMarine Sedimentshttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1We present a novel technique for quantitative unmixing of primary and secondary ferrimagnetic minerals in sediments. Hysteresis and high-resolution first-order reversal curve (FORC) measurements are performed on sediment samples before and after digestion in a citrate–bicarbonate–dithionite (CBD) solution optimized for maximum selective extraction of secondary fine-grained iron oxides. The difference between magnetic measurements of untreated and CBD-treated sample materials is used to calculate the original magnetic signature of CBD-extractable minerals. A combination of selective chemical extraction and magnetic measurements suited for the detection of single-domain particles provides a cross-check between chemical and magnetic unmixing of primary and secondary iron oxides and resolves the non-uniqueness problem of numerical unmixing methods. A quantitative magnetic characterization of secondary ferrimagnetic minerals in a magnetofossil-rich pelagic carbonate is presented for the first time. It can be used for calibration of recently developed fast magnetic unmixing techniques. CBD-based Fe extraction from sediments with minimal clastic and/or aeolian inputs, such as pelagic carbonates, is particularly suited for the search for cosmogenic 60Fe signatures from supernova explosions, because 60Fe dilution by dissolved primary Fe-bearing minerals is minimized.Fil: Ludwig, P.. Technische Universitat Munchen; AlemaniaFil: Egli, R.. Central Institute for Meteorology and Geodynamics; AustriaFil: Bishop, S.. Technische Universitat Munchen; AlemaniaFil: Chernenko, V.. Technische Universitat Munchen; AlemaniaFil: Frederichs, T.. Universitat Bremen; AlemaniaFil: Rugel, G.. Helmholtz-Zentrum; AlemaniaFil: Merchel, S.. Helmholtz-Zentrum; AlemaniaFil: Orgeira, Maria Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaElsevier Science2013-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18561Ludwig, P.; Egli, R.; Bishop, S.; Chernenko, V.; Frederichs, T.; et al.; Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques; Elsevier Science; Global And Planetary Change; 110; Part C; 11-2013; 321-3390921-8181CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2013.08.018info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0921818113001896info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:38Zoai:ri.conicet.gov.ar:11336/18561instacron: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 09:53:38.596CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
title Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
spellingShingle Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
Ludwig, P.
Magnetism
Magnetite
Marine Sediments
title_short Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
title_full Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
title_fullStr Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
title_full_unstemmed Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
title_sort Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques
dc.creator.none.fl_str_mv Ludwig, P.
Egli, R.
Bishop, S.
Chernenko, V.
Frederichs, T.
Rugel, G.
Merchel, S.
Orgeira, Maria Julia
author Ludwig, P.
author_facet Ludwig, P.
Egli, R.
Bishop, S.
Chernenko, V.
Frederichs, T.
Rugel, G.
Merchel, S.
Orgeira, Maria Julia
author_role author
author2 Egli, R.
Bishop, S.
Chernenko, V.
Frederichs, T.
Rugel, G.
Merchel, S.
Orgeira, Maria Julia
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Magnetism
Magnetite
Marine Sediments
topic Magnetism
Magnetite
Marine Sediments
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present a novel technique for quantitative unmixing of primary and secondary ferrimagnetic minerals in sediments. Hysteresis and high-resolution first-order reversal curve (FORC) measurements are performed on sediment samples before and after digestion in a citrate–bicarbonate–dithionite (CBD) solution optimized for maximum selective extraction of secondary fine-grained iron oxides. The difference between magnetic measurements of untreated and CBD-treated sample materials is used to calculate the original magnetic signature of CBD-extractable minerals. A combination of selective chemical extraction and magnetic measurements suited for the detection of single-domain particles provides a cross-check between chemical and magnetic unmixing of primary and secondary iron oxides and resolves the non-uniqueness problem of numerical unmixing methods. A quantitative magnetic characterization of secondary ferrimagnetic minerals in a magnetofossil-rich pelagic carbonate is presented for the first time. It can be used for calibration of recently developed fast magnetic unmixing techniques. CBD-based Fe extraction from sediments with minimal clastic and/or aeolian inputs, such as pelagic carbonates, is particularly suited for the search for cosmogenic 60Fe signatures from supernova explosions, because 60Fe dilution by dissolved primary Fe-bearing minerals is minimized.
Fil: Ludwig, P.. Technische Universitat Munchen; Alemania
Fil: Egli, R.. Central Institute for Meteorology and Geodynamics; Austria
Fil: Bishop, S.. Technische Universitat Munchen; Alemania
Fil: Chernenko, V.. Technische Universitat Munchen; Alemania
Fil: Frederichs, T.. Universitat Bremen; Alemania
Fil: Rugel, G.. Helmholtz-Zentrum; Alemania
Fil: Merchel, S.. Helmholtz-Zentrum; Alemania
Fil: Orgeira, Maria Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; Argentina
description We present a novel technique for quantitative unmixing of primary and secondary ferrimagnetic minerals in sediments. Hysteresis and high-resolution first-order reversal curve (FORC) measurements are performed on sediment samples before and after digestion in a citrate–bicarbonate–dithionite (CBD) solution optimized for maximum selective extraction of secondary fine-grained iron oxides. The difference between magnetic measurements of untreated and CBD-treated sample materials is used to calculate the original magnetic signature of CBD-extractable minerals. A combination of selective chemical extraction and magnetic measurements suited for the detection of single-domain particles provides a cross-check between chemical and magnetic unmixing of primary and secondary iron oxides and resolves the non-uniqueness problem of numerical unmixing methods. A quantitative magnetic characterization of secondary ferrimagnetic minerals in a magnetofossil-rich pelagic carbonate is presented for the first time. It can be used for calibration of recently developed fast magnetic unmixing techniques. CBD-based Fe extraction from sediments with minimal clastic and/or aeolian inputs, such as pelagic carbonates, is particularly suited for the search for cosmogenic 60Fe signatures from supernova explosions, because 60Fe dilution by dissolved primary Fe-bearing minerals is minimized.
publishDate 2013
dc.date.none.fl_str_mv 2013-11
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/11336/18561
Ludwig, P.; Egli, R.; Bishop, S.; Chernenko, V.; Frederichs, T.; et al.; Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques; Elsevier Science; Global And Planetary Change; 110; Part C; 11-2013; 321-339
0921-8181
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18561
identifier_str_mv Ludwig, P.; Egli, R.; Bishop, S.; Chernenko, V.; Frederichs, T.; et al.; Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques; Elsevier Science; Global And Planetary Change; 110; Part C; 11-2013; 321-339
0921-8181
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2013.08.018
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0921818113001896
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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_ 1842269238173106176
score 13.13397

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