Original δ13C values of abiotically precipitated marine cements from a variety of stratigraphic intervals have been used to document secular variations in the δ13C values of Phanerozoic oceans. These, together with the ...
A survey of the δ13C and δ18O values of CaCO3 precipitated by marine calcareous algae was conducted to examine 'vital effects' produced by the various styles of calcification of the major algal subdivisions (Codiacea, ...
The temporal distribution of large igneous provinces (LIPs) and giant dike swarms (GDS) indicates that both occur periodically and are the result of insulation of the mantle following supercontinent assembly. These data ...