A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina

Autores
Falco, Juan Ignacio; Hauser, Natalia; Olivera, Daniela Elizabeth; Bodnar, Josefina; Reimold, Wolf Uwe
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The volcano-sedimentary succession of the Cerro Piche Graben, Río Negro province, Patagonia (Argentina), was studied U-Pb and Lu-Hf in zircon. As well, a stratigraphic, sedimentological, palynology and a review of the paleo flora content was made. The combined stratigraphic and geochronological study on the volcano-sedimentary succession indicates that the Cerro Piche Graben was developed during the Early Jurassic and allow us to propose the Cerro Piche Formation. This formation is composed of a lower volcanic succession (named the Loma Blanca Member) that is restricted to the tectonic depression and that was probably emplaced during the Sinemurian (ca. 191 Ma), and an upper sedimentary succession (named the El Tono Member) that was unconformably deposited over the lower sequence during the Pliensbachian (ca. 183 Ma). The sedimentological study of the upper sequence allows to recognition of nine sedimentary cycles related to the evolution of an alluvial fan. The palynofacies interpretations reflect intermittent exposure to weathering and/or intense reworking of organic components as a result of a dynamic sedimentary system with a high terrestrial input, sediment reworking, and/or intermittent subaerial exposure. The paleoflora preserved in this sedimentary succession is composed exclusively of conifers and assigned to Cupessinoxylon sp., and probably corresponds to an arboreal paleocommunity. The U-Pb data on Early Jurassic detrital zircon grains from the El Tono Member indicate a maximum depositional age (MDA) of 185 Ma for this sequence, and the Lu-Hf data support a reworked continental crust for the zircon source. . Additionally, the U-Pb and Lu-Hf data obtained during this work together with data from the North Patagonian Massif supports the recognition of four magmatic cycles, called C0, C1 (including C1i source), C2 and C3. The C1 (172-180 Ma) and the C3 (155-162 Ma) cycles indicate mixing of juvenile mantle-42 derived and reworked crustal components in the parental magma of zircons and the C0 (182-192 Ma) cycle, which includes the distal volcanism identified in the Cerro Piche Graben, the C1i (172-180 Ma) and C2 (166-169 Ma) cycles seemingly represent three episodes of crustal reworking.
Fil: Falco, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio. Universidad Nacional de Río Negro. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio; Argentina
Fil: Hauser, Natalia. Universidade Do Brasilia. Instituto de Geociencias; Brasil
Fil: Olivera, Daniela Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Bodnar, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
Fil: Reimold, Wolf Uwe. Universidad do Brasilia; Brasil
Materia
JURASSIC VOLCANISM
PATAGONIA
U-Pb/Lu-Hf ISOTOPES ON ZIRCON
JURASSIC FLORA
STRATIGRAPHY
Nivel de accesibilidad
acceso embargado
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:11336/147840

id CONICETDig_5ffde75e7b395b3424409b88284d34cb
oai_identifier_str oai:ri.conicet.gov.ar:11336/147840
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, ArgentinaFalco, Juan IgnacioHauser, NataliaOlivera, Daniela ElizabethBodnar, JosefinaReimold, Wolf UweJURASSIC VOLCANISMPATAGONIAU-Pb/Lu-Hf ISOTOPES ON ZIRCONJURASSIC FLORASTRATIGRAPHYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The volcano-sedimentary succession of the Cerro Piche Graben, Río Negro province, Patagonia (Argentina), was studied U-Pb and Lu-Hf in zircon. As well, a stratigraphic, sedimentological, palynology and a review of the paleo flora content was made. The combined stratigraphic and geochronological study on the volcano-sedimentary succession indicates that the Cerro Piche Graben was developed during the Early Jurassic and allow us to propose the Cerro Piche Formation. This formation is composed of a lower volcanic succession (named the Loma Blanca Member) that is restricted to the tectonic depression and that was probably emplaced during the Sinemurian (ca. 191 Ma), and an upper sedimentary succession (named the El Tono Member) that was unconformably deposited over the lower sequence during the Pliensbachian (ca. 183 Ma). The sedimentological study of the upper sequence allows to recognition of nine sedimentary cycles related to the evolution of an alluvial fan. The palynofacies interpretations reflect intermittent exposure to weathering and/or intense reworking of organic components as a result of a dynamic sedimentary system with a high terrestrial input, sediment reworking, and/or intermittent subaerial exposure. The paleoflora preserved in this sedimentary succession is composed exclusively of conifers and assigned to Cupessinoxylon sp., and probably corresponds to an arboreal paleocommunity. The U-Pb data on Early Jurassic detrital zircon grains from the El Tono Member indicate a maximum depositional age (MDA) of 185 Ma for this sequence, and the Lu-Hf data support a reworked continental crust for the zircon source. . Additionally, the U-Pb and Lu-Hf data obtained during this work together with data from the North Patagonian Massif supports the recognition of four magmatic cycles, called C0, C1 (including C1i source), C2 and C3. The C1 (172-180 Ma) and the C3 (155-162 Ma) cycles indicate mixing of juvenile mantle-42 derived and reworked crustal components in the parental magma of zircons and the C0 (182-192 Ma) cycle, which includes the distal volcanism identified in the Cerro Piche Graben, the C1i (172-180 Ma) and C2 (166-169 Ma) cycles seemingly represent three episodes of crustal reworking.Fil: Falco, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio. Universidad Nacional de Río Negro. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio; ArgentinaFil: Hauser, Natalia. Universidade Do Brasilia. Instituto de Geociencias; BrasilFil: Olivera, Daniela Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Bodnar, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; ArgentinaFil: Reimold, Wolf Uwe. Universidad do Brasilia; BrasilPergamon-Elsevier Science Ltd2021-08info:eu-repo/date/embargoEnd/2022-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147840Falco, Juan Ignacio; Hauser, Natalia; Olivera, Daniela Elizabeth; Bodnar, Josefina; Reimold, Wolf Uwe; A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 109; 8-2021; 1-780895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981121001346info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:19Zoai:ri.conicet.gov.ar:11336/147840instacron: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:34982025-09-29 10:12:19.744CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
title A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
spellingShingle A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
Falco, Juan Ignacio
JURASSIC VOLCANISM
PATAGONIA
U-Pb/Lu-Hf ISOTOPES ON ZIRCON
JURASSIC FLORA
STRATIGRAPHY
title_short A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
title_full A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
title_fullStr A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
title_full_unstemmed A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
title_sort A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina
dc.creator.none.fl_str_mv Falco, Juan Ignacio
Hauser, Natalia
Olivera, Daniela Elizabeth
Bodnar, Josefina
Reimold, Wolf Uwe
author Falco, Juan Ignacio
author_facet Falco, Juan Ignacio
Hauser, Natalia
Olivera, Daniela Elizabeth
Bodnar, Josefina
Reimold, Wolf Uwe
author_role author
author2 Hauser, Natalia
Olivera, Daniela Elizabeth
Bodnar, Josefina
Reimold, Wolf Uwe
author2_role author
author
author
author
dc.subject.none.fl_str_mv JURASSIC VOLCANISM
PATAGONIA
U-Pb/Lu-Hf ISOTOPES ON ZIRCON
JURASSIC FLORA
STRATIGRAPHY
topic JURASSIC VOLCANISM
PATAGONIA
U-Pb/Lu-Hf ISOTOPES ON ZIRCON
JURASSIC FLORA
STRATIGRAPHY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The volcano-sedimentary succession of the Cerro Piche Graben, Río Negro province, Patagonia (Argentina), was studied U-Pb and Lu-Hf in zircon. As well, a stratigraphic, sedimentological, palynology and a review of the paleo flora content was made. The combined stratigraphic and geochronological study on the volcano-sedimentary succession indicates that the Cerro Piche Graben was developed during the Early Jurassic and allow us to propose the Cerro Piche Formation. This formation is composed of a lower volcanic succession (named the Loma Blanca Member) that is restricted to the tectonic depression and that was probably emplaced during the Sinemurian (ca. 191 Ma), and an upper sedimentary succession (named the El Tono Member) that was unconformably deposited over the lower sequence during the Pliensbachian (ca. 183 Ma). The sedimentological study of the upper sequence allows to recognition of nine sedimentary cycles related to the evolution of an alluvial fan. The palynofacies interpretations reflect intermittent exposure to weathering and/or intense reworking of organic components as a result of a dynamic sedimentary system with a high terrestrial input, sediment reworking, and/or intermittent subaerial exposure. The paleoflora preserved in this sedimentary succession is composed exclusively of conifers and assigned to Cupessinoxylon sp., and probably corresponds to an arboreal paleocommunity. The U-Pb data on Early Jurassic detrital zircon grains from the El Tono Member indicate a maximum depositional age (MDA) of 185 Ma for this sequence, and the Lu-Hf data support a reworked continental crust for the zircon source. . Additionally, the U-Pb and Lu-Hf data obtained during this work together with data from the North Patagonian Massif supports the recognition of four magmatic cycles, called C0, C1 (including C1i source), C2 and C3. The C1 (172-180 Ma) and the C3 (155-162 Ma) cycles indicate mixing of juvenile mantle-42 derived and reworked crustal components in the parental magma of zircons and the C0 (182-192 Ma) cycle, which includes the distal volcanism identified in the Cerro Piche Graben, the C1i (172-180 Ma) and C2 (166-169 Ma) cycles seemingly represent three episodes of crustal reworking.
Fil: Falco, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio. Universidad Nacional de Río Negro. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio; Argentina
Fil: Hauser, Natalia. Universidade Do Brasilia. Instituto de Geociencias; Brasil
Fil: Olivera, Daniela Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Bodnar, Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
Fil: Reimold, Wolf Uwe. Universidad do Brasilia; Brasil
description The volcano-sedimentary succession of the Cerro Piche Graben, Río Negro province, Patagonia (Argentina), was studied U-Pb and Lu-Hf in zircon. As well, a stratigraphic, sedimentological, palynology and a review of the paleo flora content was made. The combined stratigraphic and geochronological study on the volcano-sedimentary succession indicates that the Cerro Piche Graben was developed during the Early Jurassic and allow us to propose the Cerro Piche Formation. This formation is composed of a lower volcanic succession (named the Loma Blanca Member) that is restricted to the tectonic depression and that was probably emplaced during the Sinemurian (ca. 191 Ma), and an upper sedimentary succession (named the El Tono Member) that was unconformably deposited over the lower sequence during the Pliensbachian (ca. 183 Ma). The sedimentological study of the upper sequence allows to recognition of nine sedimentary cycles related to the evolution of an alluvial fan. The palynofacies interpretations reflect intermittent exposure to weathering and/or intense reworking of organic components as a result of a dynamic sedimentary system with a high terrestrial input, sediment reworking, and/or intermittent subaerial exposure. The paleoflora preserved in this sedimentary succession is composed exclusively of conifers and assigned to Cupessinoxylon sp., and probably corresponds to an arboreal paleocommunity. The U-Pb data on Early Jurassic detrital zircon grains from the El Tono Member indicate a maximum depositional age (MDA) of 185 Ma for this sequence, and the Lu-Hf data support a reworked continental crust for the zircon source. . Additionally, the U-Pb and Lu-Hf data obtained during this work together with data from the North Patagonian Massif supports the recognition of four magmatic cycles, called C0, C1 (including C1i source), C2 and C3. The C1 (172-180 Ma) and the C3 (155-162 Ma) cycles indicate mixing of juvenile mantle-42 derived and reworked crustal components in the parental magma of zircons and the C0 (182-192 Ma) cycle, which includes the distal volcanism identified in the Cerro Piche Graben, the C1i (172-180 Ma) and C2 (166-169 Ma) cycles seemingly represent three episodes of crustal reworking.
publishDate 2021
dc.date.none.fl_str_mv 2021-08
info:eu-repo/date/embargoEnd/2022-02-01
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/11336/147840
Falco, Juan Ignacio; Hauser, Natalia; Olivera, Daniela Elizabeth; Bodnar, Josefina; Reimold, Wolf Uwe; A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 109; 8-2021; 1-78
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/147840
identifier_str_mv Falco, Juan Ignacio; Hauser, Natalia; Olivera, Daniela Elizabeth; Bodnar, Josefina; Reimold, Wolf Uwe; A multi-proxy study of the Cerro Piche Graben: a Lower Jurassic basin in the central North Patagonian Massif, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 109; 8-2021; 1-78
0895-9811
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://www.sciencedirect.com/science/article/pii/S0895981121001346
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv embargoedAccess
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
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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_ 1844614029427867648
score 13.070432