Fig. 7From: Fluid flow through the sedimentary cover in northern Switzerland recorded by calcite–celestite veins (Oftringen borehole, Olten)Carbon and oxygen isotope composition of whole rock carbonate and of vein calcite versus depth along borehole. Ranges of δ13C values for seawater carbonate during Dogger and Oxfordian times are shown as grey boxes (after Ripperdan 2001). Errors (1σ) are smaller than the symbol sizeBack to article page