Fig. 5: Geochemical Data from PRR50489.

a LA ICP-MS Si concentration curve. b LA ICP-MS Ca concentration curve. c LA ICP-MS Ce* curve. d δ¹³C data from calcite layers. e δ¹⁸O data from calcite and opal layers. Opal layers are represented by areas with high Si and low Ca concentrations; calcite layers have high Ca concentration and low Si concentration.