Initial Reports, Volume 209 Ms 209IR-109 Chapter 9, Table T3. Vein mineralogy, Hole 1274A. Notes: The volume of veins is based on macroscopic observations of vein mineralogy and estimates of vein percentages by pieces. We computed volume percentage of veins by using the volume weighted average of the macroscopic estimates using the relative curated length and assuming a constant core radius throughout the site. Hole 1274A Penetration depth (mbsf) 155.8 Recovery (%) 22.2 Length recovered (m) 34.7 Volume recovered (cm3) 86,874 Veins in hole (cm3/m) 40.6 Veins in hole (%) 1.8 Vein minerals in hole (cm3/m): Picrolite 14.42 Chrysotile 20.98 Magnetite 0.42 Carbonates 4.60 Others 0.16 Vein minerals in hole (%): Picrolite 0.58 Chrysotile 0.84 Magnetite 0.02 Carbonates 0.18 Others 0.01 Vein minerals in veins (%): Picrolite 35.5 Chrysotile 51.7 Magnetite 1.0 Carbonates 11.3 Others 0.4