Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina

The first carbon and oxygen isotope curves for the Valanginian to Early Barremian (Early Cretaceous) interval obtained from outcrops in the Southern Hemisphere are presented. They were obtained from well-dated (by ammonites) sediments from the Neuquén Basin, Argentina. Measurements were acquired by...

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Detalles Bibliográficos
Publicado: 2008
Materias:
Argentina
Carbon isotopes
Early Cretaceous
Neuquén Basin
Oxygen isotopes
Barremian
carbon isotope
fossil
isotopic composition
outcrop
oxygen isotope
sediment chemistry
sediment core
Southern Hemisphere
Valanginian
Neuquen Basin
South America
Ostreidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v29_n1_p87_AguirreUrreta
http://hdl.handle.net/20.500.12110/paper_01956671_v29_n1_p87_AguirreUrreta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01956671_v29_n1_p87_AguirreUrreta
record_format dspace
spelling paper:paper_01956671_v29_n1_p87_AguirreUrreta2023-06-08T15:20:10Z Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina Argentina Carbon isotopes Early Cretaceous Neuquén Basin Oxygen isotopes Barremian carbon isotope fossil isotopic composition outcrop oxygen isotope sediment chemistry sediment core Southern Hemisphere Valanginian Argentina Neuquen Basin South America Ostreidae The first carbon and oxygen isotope curves for the Valanginian to Early Barremian (Early Cretaceous) interval obtained from outcrops in the Southern Hemisphere are presented. They were obtained from well-dated (by ammonites) sediments from the Neuquén Basin, Argentina. Measurements were acquired by the innovative method of analysing fossil oyster laminae. The occurrence of the well-established mid-Valanginian positive carbon isotope excursion is documented, while less well-marked positive events may also correlate with peaks identified in the well-known successions of SE France. The mid-Valanginian positive carbon isotope event in the Neuquén Basin is possibly associated with organic-rich sediments. A similar relationship is seen in the European Alps and in oceanic cores in some areas of the world. © 2007 Elsevier Ltd. All rights reserved. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v29_n1_p87_AguirreUrreta http://hdl.handle.net/20.500.12110/paper_01956671_v29_n1_p87_AguirreUrreta
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Carbon isotopes
Early Cretaceous
Neuquén Basin
Oxygen isotopes
Barremian
carbon isotope
fossil
isotopic composition
outcrop
oxygen isotope
sediment chemistry
sediment core
Southern Hemisphere
Valanginian
Argentina
Neuquen Basin
South America
Ostreidae
spellingShingle Argentina
Carbon isotopes
Early Cretaceous
Neuquén Basin
Oxygen isotopes
Barremian
carbon isotope
fossil
isotopic composition
outcrop
oxygen isotope
sediment chemistry
sediment core
Southern Hemisphere
Valanginian
Argentina
Neuquen Basin
South America
Ostreidae
Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina
topic_facet Argentina
Carbon isotopes
Early Cretaceous
Neuquén Basin
Oxygen isotopes
Barremian
carbon isotope
fossil
isotopic composition
outcrop
oxygen isotope
sediment chemistry
sediment core
Southern Hemisphere
Valanginian
Argentina
Neuquen Basin
South America
Ostreidae
description The first carbon and oxygen isotope curves for the Valanginian to Early Barremian (Early Cretaceous) interval obtained from outcrops in the Southern Hemisphere are presented. They were obtained from well-dated (by ammonites) sediments from the Neuquén Basin, Argentina. Measurements were acquired by the innovative method of analysing fossil oyster laminae. The occurrence of the well-established mid-Valanginian positive carbon isotope excursion is documented, while less well-marked positive events may also correlate with peaks identified in the well-known successions of SE France. The mid-Valanginian positive carbon isotope event in the Neuquén Basin is possibly associated with organic-rich sediments. A similar relationship is seen in the European Alps and in oceanic cores in some areas of the world. © 2007 Elsevier Ltd. All rights reserved.
title Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina
title_short Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina
title_full Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina
title_fullStr Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina
title_full_unstemmed Southern Hemisphere Early Cretaceous (Valanginian-Early Barremian) carbon and oxygen isotope curves from the Neuquén Basin, Argentina
title_sort southern hemisphere early cretaceous (valanginian-early barremian) carbon and oxygen isotope curves from the neuquén basin, argentina
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v29_n1_p87_AguirreUrreta
http://hdl.handle.net/20.500.12110/paper_01956671_v29_n1_p87_AguirreUrreta
_version_ 1768546297818644480

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