Shields G.A.; Veizer J.; Carden G.A.F.; Meidla T.; Rong J.-Y.; Li R.-Y.(2003)
Here we present Sr, C, and O isotope curves for Ordovician marine calcite based on analyses of 206 calcitic brachiopods from 10 localities worldwide. These are the first Ordovician-wide isotope curves that can be placed ...