Mg/Ca and δ18O in the brackish shallow-water benthic foraminifer Ammonia ‘beccarii’

TitreMg/Ca and δ18O in the brackish shallow-water benthic foraminifer Ammonia ‘beccarii’
Type de publicationArticle de revue
AuteurToyofuku, Takashi, Suzuki, Masayuki, Suga, Hisami, Sakai, Saburo, Suzuki, Atsushi, Ishikawa, Tsuyoshi, de Nooijer, Lennart Jan, Schiebel, Ralf , Kawahata, Hodaka, Kitazato, Hiroshi
EditeurElsevier
TypeArticle scientifique dans une revue à comité de lecture
Année2011
LangueAnglais
Date2011
Numéro3–4
Pagination113 - 120
Volume78
Titre de la revueMarine Micropaleontology
ISSN0377-8398
Mots-clésBenthic, Foraminifera
Résumé en anglais

Specimens of the benthic foraminifer Ammonia beccarii were cultured in the laboratory in order to determine the relation between temperature and Mg/Ca and oxygen isotope values in their tests. Asexual reproduction in this species provides a large number of juveniles that were allowed to grow into maturity at temperatures ranging from 10 to 27 °C and at salinities ranging from 18 to 33 PSU. The Mg/Ca in a calcite increase exponentially and δ18O decreases linearly with the temperature. Salinity has no significant impact on either Mg/Ca or δ18O. We show how the combination of these two parameters can be used to reconstruct seawater δ18O and temperature in shallow marine habitats.

URL de la noticehttp://okina.univ-angers.fr/publications/ua3913
DOI10.1016/j.marmicro.2010.11.003
Lien vers le document

http://dx.doi.org/10.1016/j.marmicro.2010.11.003