Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina

Autores
Melchor, Ricardo Nestor; Genise, Jorge Fernando; Miquel, Sergio Eduardo
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Integrated analysis of the ichnology, sedimentology, geochemistry, and fossil content of three trace fossil-bearing calcareous paleosols from the early Eocene Gran Salitral Formation is used to reconstruct the detailed paleoenvironmentaland paleoecological setting of this insect-dominated ichnofossil association. This continental sequence, located in southwestern La Pampa province (Argentina), is composed of palustrine marls and minor lacustrine mudstonesand sandstones arranged in shallowing-upward cycles. The ichnologic association is the first comprehensively described froma palustrine sequence and could be used for future comparisons with other similar assemblages. The ichnofaunais dominated by bee cells, Celliforma germanica, C. roselli, and Rosellichnus isp.; Teisseirei barattinia, an insect trace fossil that is redescribed and recorded for the first time outside its type locality; Taenidium barretti; andSkolithos linearis. The ichnologic association also includes ovoid structures, ornamented burrow fillings, and plant trace fossils (rootlets, rhizoliths, and a tree / shrub stump). Abundant freshwater (Pomacea sp.) and terrestrial gastropods (Plagiodontes spp., Bostryx sp., and Bulimulus sp.) are used to characterize the paleoenvironmental setting. The weakly developed paleosols are interpreted as Inceptisols, developed in a low-gradient lake margin periodicallyexposed to pedogenesis with low (probably saline) vegetation and sparse shrubs. They developed under a semi-arid and warm climate (mean annual temperature higher than 208C). Short saline / alkaline conditions were prevalent during lake lowstands, accompanied by incipient karst development. The association of trace fossils is attributed provisionally to the Coprinisphaera ichnofacies, although its distinctive features and recurrence in time and space may deserve recognition as a separate ichnofacies.
Fil: Melchor, Ricardo Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
Fil: Genise, Jorge Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Miquel, Sergio Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Materia
Ichnology
Calcareous Paleosols
Palustrine Sequence
Eocene of Argentina
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:11336/81813

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spelling Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, ArgentinaMelchor, Ricardo NestorGenise, Jorge FernandoMiquel, Sergio EduardoIchnologyCalcareous PaleosolsPalustrine SequenceEocene of Argentinahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Integrated analysis of the ichnology, sedimentology, geochemistry, and fossil content of three trace fossil-bearing calcareous paleosols from the early Eocene Gran Salitral Formation is used to reconstruct the detailed paleoenvironmentaland paleoecological setting of this insect-dominated ichnofossil association. This continental sequence, located in southwestern La Pampa province (Argentina), is composed of palustrine marls and minor lacustrine mudstonesand sandstones arranged in shallowing-upward cycles. The ichnologic association is the first comprehensively described froma palustrine sequence and could be used for future comparisons with other similar assemblages. The ichnofaunais dominated by bee cells, Celliforma germanica, C. roselli, and Rosellichnus isp.; Teisseirei barattinia, an insect trace fossil that is redescribed and recorded for the first time outside its type locality; Taenidium barretti; andSkolithos linearis. The ichnologic association also includes ovoid structures, ornamented burrow fillings, and plant trace fossils (rootlets, rhizoliths, and a tree / shrub stump). Abundant freshwater (Pomacea sp.) and terrestrial gastropods (Plagiodontes spp., Bostryx sp., and Bulimulus sp.) are used to characterize the paleoenvironmental setting. The weakly developed paleosols are interpreted as Inceptisols, developed in a low-gradient lake margin periodicallyexposed to pedogenesis with low (probably saline) vegetation and sparse shrubs. They developed under a semi-arid and warm climate (mean annual temperature higher than 208C). Short saline / alkaline conditions were prevalent during lake lowstands, accompanied by incipient karst development. The association of trace fossils is attributed provisionally to the Coprinisphaera ichnofacies, although its distinctive features and recurrence in time and space may deserve recognition as a separate ichnofacies.Fil: Melchor, Ricardo Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; ArgentinaFil: Genise, Jorge Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Miquel, Sergio Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaSociety for Sedimentary Geology2002-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/81813Melchor, Ricardo Nestor; Genise, Jorge Fernando; Miquel, Sergio Eduardo; Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina; Society for Sedimentary Geology; Palaios; 17; 1; 2-2002; 16-350883-1351CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1669/0883-1351(2002)017<0016:ISAPOE>2.0.CO;2info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/sepm/palaios/article/17/1/16-35/99810info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:17Zoai:ri.conicet.gov.ar:11336/81813instacron: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 09:36:17.675CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
title Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
spellingShingle Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
Melchor, Ricardo Nestor
Ichnology
Calcareous Paleosols
Palustrine Sequence
Eocene of Argentina
title_short Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
title_full Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
title_fullStr Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
title_full_unstemmed Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
title_sort Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina
dc.creator.none.fl_str_mv Melchor, Ricardo Nestor
Genise, Jorge Fernando
Miquel, Sergio Eduardo
author Melchor, Ricardo Nestor
author_facet Melchor, Ricardo Nestor
Genise, Jorge Fernando
Miquel, Sergio Eduardo
author_role author
author2 Genise, Jorge Fernando
Miquel, Sergio Eduardo
author2_role author
author
dc.subject.none.fl_str_mv Ichnology
Calcareous Paleosols
Palustrine Sequence
Eocene of Argentina
topic Ichnology
Calcareous Paleosols
Palustrine Sequence
Eocene of Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Integrated analysis of the ichnology, sedimentology, geochemistry, and fossil content of three trace fossil-bearing calcareous paleosols from the early Eocene Gran Salitral Formation is used to reconstruct the detailed paleoenvironmentaland paleoecological setting of this insect-dominated ichnofossil association. This continental sequence, located in southwestern La Pampa province (Argentina), is composed of palustrine marls and minor lacustrine mudstonesand sandstones arranged in shallowing-upward cycles. The ichnologic association is the first comprehensively described froma palustrine sequence and could be used for future comparisons with other similar assemblages. The ichnofaunais dominated by bee cells, Celliforma germanica, C. roselli, and Rosellichnus isp.; Teisseirei barattinia, an insect trace fossil that is redescribed and recorded for the first time outside its type locality; Taenidium barretti; andSkolithos linearis. The ichnologic association also includes ovoid structures, ornamented burrow fillings, and plant trace fossils (rootlets, rhizoliths, and a tree / shrub stump). Abundant freshwater (Pomacea sp.) and terrestrial gastropods (Plagiodontes spp., Bostryx sp., and Bulimulus sp.) are used to characterize the paleoenvironmental setting. The weakly developed paleosols are interpreted as Inceptisols, developed in a low-gradient lake margin periodicallyexposed to pedogenesis with low (probably saline) vegetation and sparse shrubs. They developed under a semi-arid and warm climate (mean annual temperature higher than 208C). Short saline / alkaline conditions were prevalent during lake lowstands, accompanied by incipient karst development. The association of trace fossils is attributed provisionally to the Coprinisphaera ichnofacies, although its distinctive features and recurrence in time and space may deserve recognition as a separate ichnofacies.
Fil: Melchor, Ricardo Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
Fil: Genise, Jorge Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Miquel, Sergio Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
description Integrated analysis of the ichnology, sedimentology, geochemistry, and fossil content of three trace fossil-bearing calcareous paleosols from the early Eocene Gran Salitral Formation is used to reconstruct the detailed paleoenvironmentaland paleoecological setting of this insect-dominated ichnofossil association. This continental sequence, located in southwestern La Pampa province (Argentina), is composed of palustrine marls and minor lacustrine mudstonesand sandstones arranged in shallowing-upward cycles. The ichnologic association is the first comprehensively described froma palustrine sequence and could be used for future comparisons with other similar assemblages. The ichnofaunais dominated by bee cells, Celliforma germanica, C. roselli, and Rosellichnus isp.; Teisseirei barattinia, an insect trace fossil that is redescribed and recorded for the first time outside its type locality; Taenidium barretti; andSkolithos linearis. The ichnologic association also includes ovoid structures, ornamented burrow fillings, and plant trace fossils (rootlets, rhizoliths, and a tree / shrub stump). Abundant freshwater (Pomacea sp.) and terrestrial gastropods (Plagiodontes spp., Bostryx sp., and Bulimulus sp.) are used to characterize the paleoenvironmental setting. The weakly developed paleosols are interpreted as Inceptisols, developed in a low-gradient lake margin periodicallyexposed to pedogenesis with low (probably saline) vegetation and sparse shrubs. They developed under a semi-arid and warm climate (mean annual temperature higher than 208C). Short saline / alkaline conditions were prevalent during lake lowstands, accompanied by incipient karst development. The association of trace fossils is attributed provisionally to the Coprinisphaera ichnofacies, although its distinctive features and recurrence in time and space may deserve recognition as a separate ichnofacies.
publishDate 2002
dc.date.none.fl_str_mv 2002-02
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/11336/81813
Melchor, Ricardo Nestor; Genise, Jorge Fernando; Miquel, Sergio Eduardo; Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina; Society for Sedimentary Geology; Palaios; 17; 1; 2-2002; 16-35
0883-1351
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81813
identifier_str_mv Melchor, Ricardo Nestor; Genise, Jorge Fernando; Miquel, Sergio Eduardo; Ichnology, Sedimentology and Paleontology of Eocene Calcareous Paleosols from a Palustrine Sequence, Argentina; Society for Sedimentary Geology; Palaios; 17; 1; 2-2002; 16-35
0883-1351
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1669/0883-1351(2002)017<0016:ISAPOE>2.0.CO;2
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/sepm/palaios/article/17/1/16-35/99810
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Society for Sedimentary Geology
publisher.none.fl_str_mv Society for Sedimentary Geology
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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
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