Geochemical composition of Baltic benthic foraminifera collected and cultured over a large salinity gradient.

Research output: Contribution to conferenceAbstract

Abstract

Some of the most significant challenges in paleoclimate research arise from the need to both understand and reduce the uncertainty associated with proxies for climate reconstructions. These challenges were further highlighted in connection with the IODP Exp.347 Baltic Sea Paleoenvironment. We have investigated temperature and salinity proxies through a combination of field-and culture-based benthic foraminiferal samplesfrom the Baltic(sal. 14)-Kattegat(sal. 32), together with genetic characterization. Two long-term experiments at twotemperatures and three salinities were performed. We present foraminiferal assemblage,trace element (Mg/Ca, Ba/Ca, Mn/Ca),and stable O and C isotope results from these locations, including LA-ICP-MS data from cultured specimens. Furthermore, specimens of Elphidium and Ammonia were genetically characterized; the results indicate that the same genetic type of Elphidiumis found in both salinity regimes, but that the Ammoniagenetic types differ depending on the prevailing salinity regime.

Details

Authors
Organisations
External organisations
  • University of St Andrews
  • Scottish Association for Marine Science
  • University of Edinburgh
  • University of Stirling
  • Angers University
  • GEOMAR Helmholtz Centre for Ocean Research Kiel
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Geology
Original languageEnglish
Number of pages1
Publication statusPublished - 2017 Aug 17
Publication categoryResearch
Peer-reviewedYes
EventGoldschmidt Conference on Geochemistry - Paris, Paris, France
Duration: 2017 Aug 132017 Aug 18

Conference

ConferenceGoldschmidt Conference on Geochemistry
CountryFrance
CityParis
Period2017/08/132017/08/18

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Groeneveld, J., Helena L. Filipsson, Austin, W. E. N., Darling, K., McCarthy, D., Nadine B.Quintana Krupinski, Bird, C. & Schweizer, M., 2018 Sep 7, In : Journal of Micropalaeontology. 37, 2, p. 403-429 27 p.

Research output: Contribution to journalArticle

Kotthoff, U., Groeneveld, J., Ash, J. L., Fanget, A. S., Nadine Quintana Krupinski, Peyron, O., Stepanova, A., Jonathanwarnock, Van Helmond, N. A. G. M., Passey, B. H., Clausen, O. R., Bennike, O., Andrén, E., Granoszewski, W., Andrén, T., Helena L. Filipsson, Seidenkrantz, M. S., Slomp, C. P. & Bauersachs, T., 2017 Dec 12, In : Biogeosciences. 14, 23, p. 5607-5632 26 p.

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