native Mg/Ca ratio from which SST was calculated; values are from foram G. ruber (pink), and are in units of mmol/mol; for most values younger than approx AD 1907, these are means of two different size fractions.
; paleoData_variableName changed - was originally MgCa; paleoData_variableName changed - was originally Mg_Ca; paleoData_variableName changed - was originally Mg_Ca