Diagenetic Modifications and Reservoir Heterogeneity Associated with Magmatic Intrusions in the Devonian Khyber Limestone, Peshawar Basin, NW Pakistan

Figure 8

Cross-plot of ẟ¹⁸O (V-PDB) versus ẟ¹³C (V-PDB) of limestone (LS), dolomite (Dol. I and Dol. II), marble (M) and dolomitic marble (DM). Dashed blue box indicates the range of Devonian seawater according to [61]. Red arrow shows the temperature effect while the yellow arrows show the effect of surficial fluids.