Ba/Ca, Na/Ca, Mg/Ca, and Sr/Ca ratios of benthic foraminiferal tests from the Aegean Sea (Eastern Mediterranean Sea)
Description
Ba/Ca, Na/Ca, Mg/Ca, and Sr/Ca ratios of single chambers of benthic foraminiferal species Uvigerina mediterranea and Melonis affinis were measured using LA-ICP-MS at the Institute of Geosciences, at the University of Mainz, Germany. The analytical setup involves an ArF excimer laser (193 nm, ESI New wave) which is coupled to a quadrupole ICP-MS (Agilent 7500ce). Ablations were performed in a TwoVol² 2- Volume Cell with He as carrier gas, a laser energy density of 2-3 J/cm2 and a 7 Hz repetition rate. Foraminiferal samples were ablated with an energy density of 2 J/cm2 and, reference materials at a slightly higher energy density of ~3 J/cm2. Spot sizes of spot ablations were 50 μm in diameter for samples and reference materials. Samples were obtained during R/V METEOR cruise M51/3 in November/December 2001 in the Aegean Sea with a multicorer.