IODP Proceedings, Volume 335 Site 1256, Table T10. Thermal conductivity measurements on Expedition 312 cores and Expedition 335 non-core material. N = number of observations. RCJB = reverse circulation junk basket. Probe rotation is clockwise with respect to veins. NA = not applicable. This table is available in ASCII and in Microsoft Excel format (see 103_T10.XLS in 103 in TABLES in “Supplementary material”). Core, section, interval (cm) Top depth (mbsf) Thermal conductivity (W/[m·K]) N Probe rotation (°) Comments/Lithology Mean ±1s 335(312)-1256D- 223R-3A, 12–24 1452.40 2.238 0.059 63 Olivine gabbro 230R-1A, 49–61 1483.49 2.440 0.013 6 Gabbronorite 230R-2A, 90–103 1485.40 2.215 0.019 4 Gabbronorite 231R-1A, 105–121 1488.95 2.279 0.004 5 Gabbronorite 231R-2A, 92–105 1490.11 2.276 0.020 6 Gabbronorite 231R-3A, 48–63 1491.04 2.286 0.015 5 Gabbronorite 231R-4A, 0–15 1491.93 2.274 0.034 10 Gabbronorite 231R-4A, 109–126 1493.02 2.268 0.010 5 Gabbronorite 232R-1A, 50–62 1493.90 2.258 0.020 5 Gabbro country rock 232R-1A, 50–62 1493.93 2.427 0.009 5 Over a thin vein/fracture 232R-1A, 50–62 1493.96 2.321 0.017 5 Across a felsic vein that runs perpendicular to the core 232R-1A, 50–62 1493.99 2.291 0.008 5 Across an oblique vein 232R-1A, 50–62 1494.02 2.303 0.005 5 Across an oblique vein at the bottom of the piece 335-1256D- RCJB12-C 1516.00 2.226 0.007 0 Granoblastic dike RCJB12-C 1516.00 2.218 0.013 15 Granoblastic dike RCJB12-C 1516.00 2.226 0.021 30 Granoblastic dike RCJB12-C 1516.00 2.232 0.010 45 Granoblastic dike RCJB12-C 1516.00 2.235 0.013 60 Granoblastic dike RCJB12-C 1516.00 2.303 0.092 75 Granoblastic dike RCJB12-C 1516.00 2.244 0.007 90 Granoblastic dike RCJB13-B 1516.00 2.333 0.028 NA Granoblastic dike