Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina

The Lower Cretaceous Chachao Formation in the Malargae anticline area consists of wackestone, packstone, and minor grainstone and mudstone rich in benthonic fauna that were deposited in a carbonate ramp. The carbonate diagenesis in the Valanginian Chachao Formation contains many processes with consp...

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Detalles Bibliográficos
Autores: Palma, Ricardo Manuel, Bressan, Graciela Susana, Kietzmann, Diego Alejandro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/93764
Acceso en línea:http://hdl.handle.net/11336/93764
Access Level:acceso abierto
Palabra clave:CARBONATE
DIAGENESIS
VALANGINIAN
NEUQUÉN BASIN
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/93764
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
title Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
spellingShingle Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
Palma, Ricardo Manuel
CARBONATE
DIAGENESIS
VALANGINIAN
NEUQUÉN BASIN
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
title_short Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
title_full Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
title_fullStr Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
title_full_unstemmed Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
title_sort Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina
dc.creator.none.fl_str_mv Palma, Ricardo Manuel
Bressan, Graciela Susana
Kietzmann, Diego Alejandro
author Palma, Ricardo Manuel
author_facet Palma, Ricardo Manuel
Bressan, Graciela Susana
Kietzmann, Diego Alejandro
author_role author
author2 Bressan, Graciela Susana
Kietzmann, Diego Alejandro
author2_role author
author
dc.subject.none.fl_str_mv CARBONATE
DIAGENESIS
VALANGINIAN
NEUQUÉN BASIN
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
topic CARBONATE
DIAGENESIS
VALANGINIAN
NEUQUÉN BASIN
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
description The Lower Cretaceous Chachao Formation in the Malargae anticline area consists of wackestone, packstone, and minor grainstone and mudstone rich in benthonic fauna that were deposited in a carbonate ramp. The carbonate diagenesis in the Valanginian Chachao Formation contains many processes with conspicuous effects, including micritization, dissolution, neomorphism, and cementation. The early diagenetic process is characterized by micritization, dissolution and mineralogic stabilization of components, and earlier cement phase represented by micrite cement and isopachous calcite cement, which have petrographic characteristics consistent with precipitation in a marine-phreatic diagenetic environment. Later diagenctic phenomena include granular calcite and syntaxial cement. Both of cement types are interpreted as typical of a meteoric-phreatic environment. Concentric-zoning pattern of alternating dull, and blotchy- to bright luminescent zones is interpreted as being caused by a decrease in redox potential (Eh), under conditions of a progressive marine burial meteoric-phreatic diagenctic environment. Geochemical data (Sr++, Na+, Mg++. Fe++, Mn++) and SEM features of the micrite suggest that original calcareous mud could have been calcite dominated (CDP). The δ18O composition of the granular calcite cement ranging from -2.84‰ to -4.27‰ PDB and the δ13C values of the cement between -2.46‰ and -3.50‰ PDB are compatible with precipitation from a fluid that evolved meteoric-phreatic composition. The high depleted δ 18O values of the Gryphaea oyster shells can be related to the dilution of the marine water with a fresh water influx, whereas shells with the heaviest δ13C isotopic compositions are probably related to the original marine signal, which suggest a closed diagenetic system for carbon.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/93764
Palma, Ricardo Manuel; Bressan, Graciela Susana; Kietzmann, Diego Alejandro; Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina; Springer; Carbonates And Evaporites; 23; 1; 12-2008; 39-49
0891-2556
CONICET Digital
CONICET
url http://hdl.handle.net/11336/93764
identifier_str_mv Palma, Ricardo Manuel; Bressan, Graciela Susana; Kietzmann, Diego Alejandro; Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina; Springer; Carbonates And Evaporites; 23; 1; 12-2008; 39-49
0891-2556
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/BF03176250
info:eu-repo/semantics/altIdentifier/doi/10.1007/BF03176250
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.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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spelling Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, ArgentinaPalma, Ricardo ManuelBressan, Graciela SusanaKietzmann, Diego AlejandroCARBONATEDIAGENESISVALANGINIANNEUQUÉN BASINhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1The Lower Cretaceous Chachao Formation in the Malargae anticline area consists of wackestone, packstone, and minor grainstone and mudstone rich in benthonic fauna that were deposited in a carbonate ramp. The carbonate diagenesis in the Valanginian Chachao Formation contains many processes with conspicuous effects, including micritization, dissolution, neomorphism, and cementation. The early diagenetic process is characterized by micritization, dissolution and mineralogic stabilization of components, and earlier cement phase represented by micrite cement and isopachous calcite cement, which have petrographic characteristics consistent with precipitation in a marine-phreatic diagenetic environment. Later diagenctic phenomena include granular calcite and syntaxial cement. Both of cement types are interpreted as typical of a meteoric-phreatic environment. Concentric-zoning pattern of alternating dull, and blotchy- to bright luminescent zones is interpreted as being caused by a decrease in redox potential (Eh), under conditions of a progressive marine burial meteoric-phreatic diagenctic environment. Geochemical data (Sr++, Na+, Mg++. Fe++, Mn++) and SEM features of the micrite suggest that original calcareous mud could have been calcite dominated (CDP). The δ18O composition of the granular calcite cement ranging from -2.84‰ to -4.27‰ PDB and the δ13C values of the cement between -2.46‰ and -3.50‰ PDB are compatible with precipitation from a fluid that evolved meteoric-phreatic composition. The high depleted δ 18O values of the Gryphaea oyster shells can be related to the dilution of the marine water with a fresh water influx, whereas shells with the heaviest δ13C isotopic compositions are probably related to the original marine signal, which suggest a closed diagenetic system for carbon.Fil: Palma, Ricardo Manuel. 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: Bressan, Graciela Susana. 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: Kietzmann, Diego Alejandro. 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"; ArgentinaSpringer2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/93764Palma, Ricardo Manuel; Bressan, Graciela Susana; Kietzmann, Diego Alejandro; Diagenesis of a bioclastic oyster deposit from the Lower Cretaceous (Chachao Formation). Neuquén Basin. Mendoza Province, Argentina; Springer; Carbonates And Evaporites; 23; 1; 12-2008; 39-490891-2556CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/BF03176250info:eu-repo/semantics/altIdentifier/doi/10.1007/BF03176250info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:07:39Zoai:ri.conicet.gov.ar:11336/93764instacron: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:34982024-05-08 14:07:39.708CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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