Fracture, Dissolution, and Cementation Events in Ordovician Carbonate Reservoirs, Tarim Basin, NW China

Figure 9

δ¹⁸O-δ¹³C and ⁸⁷Sr/⁸⁶Sr-δ¹⁸O crossplots arranged by formation. Light grey polygons show δ¹⁸O-δ¹³C and ⁸⁷Sr/⁸⁶Sr ranges of Middle Ordovician and Upper Ordovician marine carbonates from Shields et al. [76]. HR: host rock; KB: red-clast karstic breccias; RHR: recrystallized host rock; Cc: calcite cement; Cs: calcite sediment; Dc: dolomite cement.