Figure F12. Vein density with depth and the representative lithology of the host rock based on core logs (Fouquet, Zierenberg, Miller, et al., 1998). Host rock is defined as the type of sedimentary rock and does not include volume percent of sulfides. The greatest vein density in Holes 856H and 1035F correspond to mudstone and siltstones. In Hole 1035H vein density corresponds to sulfide units. Note that vein density within the massive sulfides is suspect because massive sulfide may be 100% veins.