Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge

This paper presents a review of the palynomorph, foraminiferal and calcareous nannofossil record from the Cretaceous sedimentary outcrops of the Gustav and Marambio Groups in the James Ross Basin, Antarctic Peninsula. Fossiliferous localities are described for the James Ross, Vega, Humps, Cockburn,...

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Autores principales: Amenábar, C.R., Caramés, A., Lescano, M., Concheyro, A.
Formato: JOUR
Materias:
Antarctica
Biostratigraphy
James Ross sedimentary basin
Micropaleontology
Palynology
biostratigraphy
Cretaceous
micropaleontology
nanofossil
palynology
sedimentary basin
taxonomy
Australia
James Ross Island
New Zealand
Seymour Island
West Antarctica
Foraminifera
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03660176_v125_n4_p493_Amenabar
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03660176_v125_n4_p493_Amenabar
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spelling todo:paper_03660176_v125_n4_p493_Amenabar2023-10-03T15:28:07Z Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge Amenábar, C.R. Caramés, A. Lescano, M. Concheyro, A. Antarctica Biostratigraphy James Ross sedimentary basin Micropaleontology Palynology biostratigraphy Cretaceous micropaleontology nanofossil palynology sedimentary basin taxonomy Antarctica Australia James Ross Island New Zealand Seymour Island West Antarctica Foraminifera This paper presents a review of the palynomorph, foraminiferal and calcareous nannofossil record from the Cretaceous sedimentary outcrops of the Gustav and Marambio Groups in the James Ross Basin, Antarctic Peninsula. Fossiliferous localities are described for the James Ross, Vega, Humps, Cockburn, Seymour and Snow Hill islands. Palynomorphs are abundant in almost all sedimentary sections dated from the Berriasian to Maastrichtian. Permian and Jurassic species derived from Antarctic Pensinsula are reworked into the Cretaceous sediments. The strong similarity between Cretaceous palynological associations from Antarctica and from other high latitude sites has allowed the establishment of a biostratigraphic correlation between the James Ross Basin and localities in New Zealand and Australia. Regarding the Cretaceous/Paleogene boundary at Seymour Island, marine and non-marine palynomorph species show a gradual change across such a boundary. Cretaceous foraminifera from the James Ross Basin comprise 339 taxa: 179 agglutinated benthic, 142 calcareous benthic and 18 planktonic. The most extensive studies in the basin focused on the Campanian and Maastrichtian deposits of James Ross and Seymour islands. Furthermore, previous discoveries of some calcareous nannofossil markers in the basin, have allowed the improvement of the correlations for the lower Campanian and upper Maastrichtian sediments of the Marambio Group. This comprehensive review suggests that palynological and micropaleontological studies in the James Ross Basin are still insufficient to reconstruct the characteristics of the microbiota of this Cretaceous marine basin. However, new explorations, increased intensity of sampling and innovative laboratory techniques will ensure valuable future results. © 2014, Instituto Geologico y Minero de Espana. All rights reserved. Fil:Caramés, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lescano, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Concheyro, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03660176_v125_n4_p493_Amenabar
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Antarctica
Biostratigraphy
James Ross sedimentary basin
Micropaleontology
Palynology
biostratigraphy
Cretaceous
micropaleontology
nanofossil
palynology
sedimentary basin
taxonomy
Antarctica
Australia
James Ross Island
New Zealand
Seymour Island
West Antarctica
Foraminifera
spellingShingle Antarctica
Biostratigraphy
James Ross sedimentary basin
Micropaleontology
Palynology
biostratigraphy
Cretaceous
micropaleontology
nanofossil
palynology
sedimentary basin
taxonomy
Antarctica
Australia
James Ross Island
New Zealand
Seymour Island
West Antarctica
Foraminifera
Amenábar, C.R.
Caramés, A.
Lescano, M.
Concheyro, A.
Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge
topic_facet Antarctica
Biostratigraphy
James Ross sedimentary basin
Micropaleontology
Palynology
biostratigraphy
Cretaceous
micropaleontology
nanofossil
palynology
sedimentary basin
taxonomy
Antarctica
Australia
James Ross Island
New Zealand
Seymour Island
West Antarctica
Foraminifera
description This paper presents a review of the palynomorph, foraminiferal and calcareous nannofossil record from the Cretaceous sedimentary outcrops of the Gustav and Marambio Groups in the James Ross Basin, Antarctic Peninsula. Fossiliferous localities are described for the James Ross, Vega, Humps, Cockburn, Seymour and Snow Hill islands. Palynomorphs are abundant in almost all sedimentary sections dated from the Berriasian to Maastrichtian. Permian and Jurassic species derived from Antarctic Pensinsula are reworked into the Cretaceous sediments. The strong similarity between Cretaceous palynological associations from Antarctica and from other high latitude sites has allowed the establishment of a biostratigraphic correlation between the James Ross Basin and localities in New Zealand and Australia. Regarding the Cretaceous/Paleogene boundary at Seymour Island, marine and non-marine palynomorph species show a gradual change across such a boundary. Cretaceous foraminifera from the James Ross Basin comprise 339 taxa: 179 agglutinated benthic, 142 calcareous benthic and 18 planktonic. The most extensive studies in the basin focused on the Campanian and Maastrichtian deposits of James Ross and Seymour islands. Furthermore, previous discoveries of some calcareous nannofossil markers in the basin, have allowed the improvement of the correlations for the lower Campanian and upper Maastrichtian sediments of the Marambio Group. This comprehensive review suggests that palynological and micropaleontological studies in the James Ross Basin are still insufficient to reconstruct the characteristics of the microbiota of this Cretaceous marine basin. However, new explorations, increased intensity of sampling and innovative laboratory techniques will ensure valuable future results. © 2014, Instituto Geologico y Minero de Espana. All rights reserved.
format JOUR
author Amenábar, C.R.
Caramés, A.
Lescano, M.
Concheyro, A.
author_facet Amenábar, C.R.
Caramés, A.
Lescano, M.
Concheyro, A.
author_sort Amenábar, C.R.
title Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge
title_short Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge
title_full Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge
title_fullStr Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge
title_full_unstemmed Palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. Review of current knowledge
title_sort palynology and micropaleontology of the cretaceous of the james ross basin, antarctica. review of current knowledge
url http://hdl.handle.net/20.500.12110/paper_03660176_v125_n4_p493_Amenabar
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AT lescanom palynologyandmicropaleontologyofthecretaceousofthejamesrossbasinantarcticareviewofcurrentknowledge
AT concheyroa palynologyandmicropaleontologyofthecretaceousofthejamesrossbasinantarcticareviewofcurrentknowledge
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