Interannual climate variability in the Miocene: High resolution trace element and stable isotope ratios in giant clams

► A snapshot of interannual Western Pacific climate variability in the Miocene. ► Calibration and use of δ18O fractionation in giant clam shell carbonate. ► δ18O fractionation in natural and controlled conditions within one Tridacna squamosa. ► High resolution trace element and stable isotope ratios in a Miocene Tridacna gigas.