Initial Reports, Volume 209 Ms 209IR-103 Chapter 3, Table T3. Vein mineralogy, Hole 1268A. Notes: MSV = massive sulfide veins; TPV = talc-pyrite veins; MTV = massive talc veins; SPV = serpentine veins; CLV = chlorite veins; OTV = other veins. Vein volumes are based on macroscopic observations of vein mineralogy and vein percentage. We computed volume percentages of veins by using the volume weighted average of macroscopic estimates on the reported length scale of observation (i.e., piece, section, etc.) using relative curated length and assuming a constant core radius throughout the hole. Mineral in vein Volume (cm3) Volume by vein type (cm3): MSV TPV MTV SPV CLV OTV Vein minerals in veins (%) Vein minerals in hole (%) Volume in vein types (%): MSV TPV MTV SPV CLV OTV Talc 9,511 215 1,857 6,900 492 46 48.0 4.24 1.1 9.37 34.80 2.48 0.23 Serpentine 7,755 37 335 7,331 15 37 39.1 3.46 0.19 1.69 36.97 0.07 0.19 Sulfides 1,602 903 359 316 16 9 8.1 0.71 4.55 1.81 1.59 0.08 0.04 Iron oxides (others) 488 344 117 24 2 1 2.5 0.22 1.74 0.59 0.12 0.01 0.003 Chlorite 402 38 120 165 79 2.0 0.18 0.19 0.60 0.83 0.40 Magnetite 44 1 5 1 37 0.2 0.02 0.00 0.03 0.01 0.19 Amphibole 26 12 3 12 0.1 0.01 0.06 0.01 0.06 Volume in site by vein type (%) 8.85 0.65 1.07 3.44 3.58 0.07 0.03 Relative volume of vein types (%) 7.4 12.1 38.9 40.4 0.8 0.4 Total 19,829 1,463 2,407 7,707 8,015 163 74