Cool early Albian climates; new data from Argentina

Previous studies on the stable isotope geochemistry of dimitobelid belemnites from Antarctica and Australia indicated cool climatic conditions during the early Albian in the shelf seas around the Gondwanan margin. In this paper new analyses from diagenetically unaltered specimens of Dimitobelus cf....

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Detalles Bibliográficos
Autores principales: Pirrie, D., Marshall, J. D., Doyle, P., Riccardi, Alberto Carlos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Ciencias Naturales
Albian
Palaeoclimates
Argentina
Dimitobelid belemnites
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/99795
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-99795
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Albian
Palaeoclimates
Argentina
Dimitobelid belemnites
spellingShingle Ciencias Naturales
Albian
Palaeoclimates
Argentina
Dimitobelid belemnites
Pirrie, D.
Marshall, J. D.
Doyle, P.
Riccardi, Alberto Carlos
Cool early Albian climates; new data from Argentina
topic_facet Ciencias Naturales
Albian
Palaeoclimates
Argentina
Dimitobelid belemnites
description Previous studies on the stable isotope geochemistry of dimitobelid belemnites from Antarctica and Australia indicated cool climatic conditions during the early Albian in the shelf seas around the Gondwanan margin. In this paper new analyses from diagenetically unaltered specimens of Dimitobelus cf. stimulus from early Albian deposits of the Rio Mayer Formation of Lago San Martin, southern Argentina are presented. Oxygen isotope values for diagenetically least altered samples give values ranging between d18O C0.07 and C0.96 vPDB, which equate to a mean palaeotemperature of 9.5 (C (assuming dw of 1.2& SMOW). These data are consistent with a model of cool early Albian shelf seas in the Southern Hemisphere.
format Articulo
Articulo
author Pirrie, D.
Marshall, J. D.
Doyle, P.
Riccardi, Alberto Carlos
author_facet Pirrie, D.
Marshall, J. D.
Doyle, P.
Riccardi, Alberto Carlos
author_sort Pirrie, D.
title Cool early Albian climates; new data from Argentina
title_short Cool early Albian climates; new data from Argentina
title_full Cool early Albian climates; new data from Argentina
title_fullStr Cool early Albian climates; new data from Argentina
title_full_unstemmed Cool early Albian climates; new data from Argentina
title_sort cool early albian climates; new data from argentina
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/99795
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AT marshalljd coolearlyalbianclimatesnewdatafromargentina
AT doylep coolearlyalbianclimatesnewdatafromargentina
AT riccardialbertocarlos coolearlyalbianclimatesnewdatafromargentina
bdutipo_str Repositorios
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