Southern hemisphere early cretaceous (Valanginian-Early barremian) carbon and oxygen isotope curves from the neuquen basin, Argentina

Maria B. Aguirre-Urreta, Gregory D. Price, Alastair H. Ruffell, Dario G. Lazo, Robert M. Kalin, Neil Ogle, Peter F. Rawson

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

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.
LanguageEnglish
Pages87-99
Number of pages13
JournalCretaceous Research
Volume29
Issue number1
DOIs
Publication statusPublished - 2008

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Valanginian
Barremian
Southern Hemisphere
carbon isotope
oxygen isotope
Cretaceous
basin
sediment
outcrop
fossil

Keywords

  • carbon isotope
  • oxygen isotopes
  • early cretaceous
  • argentina

Cite this

Aguirre-Urreta, Maria B. ; Price, Gregory D. ; Ruffell, Alastair H. ; Lazo, Dario G. ; Kalin, Robert M. ; Ogle, Neil ; Rawson, Peter F. / Southern hemisphere early cretaceous (Valanginian-Early barremian) carbon and oxygen isotope curves from the neuquen basin, Argentina. In: Cretaceous Research. 2008 ; Vol. 29, No. 1. pp. 87-99.
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abstract = "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 Neuqu{\'e}n 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 Neuqu{\'e}n 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.",
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Southern hemisphere early cretaceous (Valanginian-Early barremian) carbon and oxygen isotope curves from the neuquen basin, Argentina. / Aguirre-Urreta, Maria B.; Price, Gregory D.; Ruffell, Alastair H.; Lazo, Dario G.; Kalin, Robert M.; Ogle, Neil; Rawson, Peter F.

In: Cretaceous Research, Vol. 29, No. 1, 2008, p. 87-99.

Research output: Contribution to journalArticle

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AU - Aguirre-Urreta, Maria B.

AU - Price, Gregory D.

AU - Ruffell, Alastair H.

AU - Lazo, Dario G.

AU - Kalin, Robert M.

AU - Ogle, Neil

AU - Rawson, Peter F.

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AB - 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.

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KW - oxygen isotopes

KW - early cretaceous

KW - argentina

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