Deciphering the Variability in Mg/Ca and Stable Oxygen Isotopes of Individual Foraminifera.

ABSTRACT: Foraminifera are commonly used in paleoclimate reconstructions as they occur throughout the world's oceans and are often abundantly preserved in the sediments. Traditionally, foraminifera-based proxies like δ¹⁸O and Mg/Ca are analyzed on pooled specimens of a single species. Analysis of single specimens of foraminifera allows reconstructing climate variability on timescales related to El Niño-Southern Oscillation or seasonality. However, quantitative calibrations between the statistics of individual foraminifera analyses (IFA) and climate variability are still missing. We performed Mg/Ca and δ¹⁸O measurements on single specimens from core top sediments from different settings to better understand the signal recorded by individual foraminifera. We used three species of

SUBMITTER: Groeneveld J 

PROVIDER: S-EPMC6686659 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature