IODP Proceedings, Volume 335 Site 1256, Table T12. Density, porosity, and compressional velocity measurements, Expedition 335. The four core samples indicated by Y in the Seawater column were measured with the new seawater bath method for VP and represent most reliable results. Reported VP values are the means and 1s of at least seven measurements. The seven core samples indicated by N were treated according to Expedition 312 protocol. Their velocities are biased toward lower values due to experimental conditions. This table is available in ASCII and in Microsoft Excel format (see 103_T12.XLS in 103 in TABLES in “Supplementary material”). Core, section, interval (cm)/ Sample label ID Depth (mbsf) Rock type Density (g/cm3) Porosity (vol%) VP x (m/s) Top Bottom Bulk Grain Value ±1s 335(312)-1256D- 222R-1W, 12–15 1444.72 1444.75 Olivine gabbro 2.925 2.946 1.117 6222 30 223R-2W, 5–7 1450.83 1450.85 Olivine gabbro 2.942 2.953 0.574 6643 24 231R-3W, 52–54 1491.08 1491.10 Gabbronorite 2.919 2.934 0.789 6755 37 231R-3W, 54–56 1491.10 1491.12 Gabbronorite 2.991 3.007 0.789 6766 56 222R-2W, 43–45 1446.53 1446.56 Olivine gabbro 2.951 2.970 0.981 4922 154 222R-2W, 46–48 1446.56 1446.58 Olivine gabbro 2.937 2.956 0.951 5258 172 231R-1W, 40–42 1488.30 1488.32 Diorite 2.998 3.014 0.772 5666 189 231R-1W, 42–44 1488.32 1488.34 Gabbronorite 3.049 3.059 0.485 5866 117 231R-1W, 114–116 1489.04 1489.06 Gabbronorite 2.987 3.001 0.718 5744 213 231R-3W, 42–44 1490.98 1491.00 Gabbronorite 3.046 3.063 0.825 5869 114 231R-3W, 113–115 1491.69 1491.71 Gabbronorite 3.026 3.028 0.075 5904 259 335-1256D-Run12-RCJB-Rock C 1516.00 Granoblastic dike 335-1256D-Run12-RCJB-RockC-MADC_01 1516.00 Granoblastic dike 3.014 3.031 0.834 6610 22 335-1256D-Run12-RCJB-RockC-MADC_02 1516.00 Granoblastic dike 3.040 3.054 0.657 6776 26 335-1256D-Run13-RCJB-RockB-MADC_01 1516.00 Granoblastic dike 3.057 3.066 0.473 6907 21 335-1256D-Run13-RCJB-RockB-MADC_02 1516.00 Granoblastic dike 3.058 3.067 0.418 6813 18 Core, section, interval (cm)/ Sample label ID VP y (m/s) VP z (m/s) Mean VP (m/s) Seawater bath Text ID Value ±1s Value ±1s Value ±1s 335(312)-1256D- 222R-1W, 12–15 6186 57 6487 44 6298 166 Y CUBE3215391 223R-2W, 5–7 6707 46 6732 40 6694 51 Y CUBE3215421 231R-3W, 52–54 6695 23 6762 36 6737 41 Y CUBE3215471 231R-3W, 54–56 6798 26 6714 24 6759 48 Y CUBE3215481 222R-2W, 43–45 5668 257 5474 86 5355 401 N CUBE3215401 222R-2W, 46–48 5785 116 5734 100 5592 301 N CUBE3215411 231R-1W, 40–42 5343 202 5773 211 5594 252 N CUBE3215431 231R-1W, 42–44 5309 173 5607 108 5594 290 N CUBE3215441 231R-1W, 114–116 5582 150 5742 154 5689 137 N CUBE3215451 231R-3W, 42–44 6017 108 5699 57 5862 169 N CUBE3215461 231R-3W, 113–115 5948 256 5819 121 5890 144 N CUBE3215491 335-1256D-Run12-RCJB-Rock C 6123 20 6123 20 N SPCM3224611 335-1256D-Run12-RCJB-RockC-MADC_01 6802 23 6788 19 6733 108 Y CUBE3225531 335-1256D-Run12-RCJB-RockC-MADC_02 6899 20 6882 32 6852 68 Y CUBE3225541 335-1256D-Run13-RCJB-RockB-MADC_01 6898 18 6861 18 6889 27 Y CUBE3225771 335-1256D-Run13-RCJB-RockB-MADC_02 6753 15 6755 14 6774 35 Y CUBE3225781