Dataset description: This dataset contains measurements of porosity, grain density, and permeability of variably altered samples from Whakaari (White Island) volcano, New Zealand. Column descriptions: 1. block_id: ID of the block from which samples were cored 2. sample_id: ID of the core sample 3. sample_type: Type of sample (Lava, Tuff, Breccia, Sulfur flow or Vesicular lava) 4. alteration_intensity: Alteration intensity of the sample (Fresh-slightly altered, moderately altered, highly altered) 5. measurement_conditions: Conditions at which porosity, grain density, and permeability were measured (atmospheric pressure - dry or under hydrostatic pressure - dry) 6. effective_pressure_Mpa: Effective pressure (MPa) at which porosity, grain density, and permeability were measured" 7. grain_density_kg/m3: Grain density(kg/m3) of the sample computed during porosity measurements 8. porosity_pct: Porosity (%) of the sample 9. sd_porosity_pct: Standard deviation of sample's porosity (%) 10. permeability_m2: Permeability (m2) of the sample. Error on permeability is less than 5%. 11. additional_notes: Additional notes pertaining to the sample. * indicates samples for which grain density and standard deviation of porosity was estimated based on atmospheric pressure measurements block_id sample_id sample_type alteration_intensity measurement_conditions effective_pressure_MPa grain_density_kg/m3 porosity_pct sd_porosity_pct permeability_m2 additional_notes W1 W1-1 Lava Fresh-slightly altered Atmospheric pressure - dry 0 2659 1.66 0.07 W11 W11-1 Tuff Highly altered Atmospheric pressure - dry 0 2480 43.92 2.27 W11 W11-2 Tuff Highly altered Atmospheric pressure - dry 0 2642 45.49 2.55 W11 W11-3 Tuff Highly altered Atmospheric pressure - dry 0 2504 32.27 1.46 W11 W11-4 Tuff Highly altered Atmospheric pressure - dry 0 2480 41 3.55 W11 W11-5 Tuff Highly altered Atmospheric pressure - dry 0 2387 33.57 1.71 W1 W1-2 Lava Fresh-slightly altered Atmospheric pressure - dry 0 2665 1.66 0.08 W12 W12-1 Breccia Highly altered Atmospheric pressure - dry 0 2353 25.42 1.02 W13 W13-1 Tuff Highly altered Atmospheric pressure - dry 0 2293 21.4 0.92 W13 W13-2 Tuff Highly altered Atmospheric pressure - dry 0 2351 28.24 1.11 W14 W14-1 Breccia Moderately altered Atmospheric pressure - dry 0 2559 37.15 1.21 W15 W15-1 Tuff Highly altered Atmospheric pressure - dry 0 2331 33.15 1.31 W18 W18-1 Vesicular lava Fresh-slightly altered Atmospheric pressure - dry 0 2772 67.05 4.59 W18 W18-3 Vesicular lava Fresh-slightly altered Atmospheric pressure - dry 0 2777 75.74 4.59 W18 W18-4 Vesicular lava Fresh-slightly altered Atmospheric pressure - dry 0 2776 61.3 3.13 W19 W19-1 Vesicular lava Fresh-slightly altered Atmospheric pressure - dry 0 2771 62.16 2.01 W19 W19-2 Vesicular lava Fresh-slightly altered Atmospheric pressure - dry 0 2723 53.81 2.12 W20 W20-1 Vesicular lava Fresh-slightly altered Atmospheric pressure - dry 0 2584 72.9 4.42 W2 W2-1 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2082 7.33 0.33 W2 W2-2 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2064 8.25 0.42 W3 W3-1 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2037 6.42 0.25 W3 W3-2 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2039 8.99 0.41 W3 W3-3 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2041 7.98 0.31 W3 W3-4 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2014 9.45 0.49 W4 W4-1 Breccia Highly altered Atmospheric pressure - dry 0 2471 36.13 2 W4 W4-2 Lava Highly altered Atmospheric pressure - dry 0 2432 15.52 0.62 W4 W4-3 Lava Highly altered Atmospheric pressure - dry 0 2509 12.42 0.49 W5 W5-1 Tuff Moderately altered Atmospheric pressure - dry 0 2583 41.09 0.94 W5 W5-2 Tuff Moderately altered Atmospheric pressure - dry 0 2553 40.27 1.58 W5 W5-3 Tuff Moderately altered Atmospheric pressure - dry 0 2517 38.99 1.77 W5 W5-5 Tuff Moderately altered Atmospheric pressure - dry 0 2551 40.12 1.43 "*Porosity and grain density are not directly measured but instead are computed from an average of porosities of samples W5-1, W5-2, and W5-3." W6 W6-1 Lava Moderately altered Atmospheric pressure - dry 0 2517 10.87 0.43 W6 W6-2 Lava Moderately altered Atmospheric pressure - dry 0 2457 9.5 0.37 W6 W6-3 Lava Moderately altered Atmospheric pressure - dry 0 2643 6.8 0.27 W6 W6-4 Lava Moderately altered Atmospheric pressure - dry 0 2672 6.96 0.22 W6 W6-5 Lava Moderately altered Atmospheric pressure - dry 0 2639 7.27 0.23 W7 W7-1 Lava Moderately altered Atmospheric pressure - dry 0 2652 12.03 0.5 W7 W7-2 Lava Moderately altered Atmospheric pressure - dry 0 2652 12.95 0.41 W7 W7-3 Lava Moderately altered Atmospheric pressure - dry 0 2659 13.48 0.43 W8 W8-1 Tuff Highly altered Atmospheric pressure - dry 0 2329 21.28 1.09 W8 W8-2 Tuff Highly altered Atmospheric pressure - dry 0 2297 23.81 0.94 W9 W9-1 Breccia Highly altered Atmospheric pressure - dry 0 2579 17.55 0.69 W9 W9-2 Breccia Highly altered Atmospheric pressure - dry 0 2531 18.83 0.74 WS WS-1 Sulfur flow Fresh-slightly altered Atmospheric pressure - dry 0 2016 6.54 0.33 W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 1.89 2551 30.57 1.43 6.11E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 5.4 2551 29.1 1.43 5.82E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 12.29 2551 29.05 1.43 5.72E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 19.07 2551 28.88 1.43 5.52E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 25.73 2551 29.09 1.43 5.58E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 32.51 2551 28.97 1.43 5.43E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 39.49 2551 29.01 1.43 5.33E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 46.64 2551 28.47 1.43 5.12E-14 * W5 W5-6 Tuff Moderately altered Under hydrostatic pressure - dry 53.64 2551 28.2 1.43 4.89E-14 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 1.94 2643 6.32 0.27 7.38E-17 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 5.38 2643 5.28 0.27 4.25E-17 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 12.16 2643 5.19 0.27 2.73E-17 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 19.17 2643 4.77 0.27 1.90E-17 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 25.99 2643 4.38 0.27 1.37E-17 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 32.85 2643 4.21 0.27 1.05E-17 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 39.85 2643 3.71 0.27 8.48E-18 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 46.71 2643 3.58 0.27 6.43E-18 * W6 W6-3 Lava Moderately altered Under hydrostatic pressure - dry 53.76 2643 3.21 0.27 5.01E-18 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 2.04 2639 2.65 0.23 2.78E-16 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 5.53 2639 2.56 0.23 1.84E-16 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 12.28 2639 2.36 0.23 8.10E-17 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 19.01 2639 2.19 0.23 4.14E-17 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 25.77 2639 2.19 0.23 2.49E-17 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 32.51 2639 2.07 0.23 1.46E-17 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 39.9 2639 1.81 0.23 8.29E-18 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 46.57 2639 1.44 0.23 4.92E-18 * W6 W6-5 Lava Moderately altered Under hydrostatic pressure - dry 53.85 2639 1.41 0.23 3.38E-18 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 1.85 2351 26.9 1.11 2.63E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 5.36 2351 26.68 1.11 2.49E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 19.07 2351 25.92 1.11 2.14E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 26.1 2351 26 1.11 1.68E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 33.05 2351 25.76 1.11 1.66E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 39.62 2351 25.2 1.11 1.50E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 46.6 2351 25.15 1.11 1.61E-16 * W13 W13-2 Tuff Highly altered Under hydrostatic pressure - dry 53.57 2351 24.76 1.11 1.44E-16 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 1.77 2331 31.93 1.31 1.57E-15 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 5.37 2331 31.66 1.31 1.41E-15 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 12.18 2331 30.98 1.31 1.23E-15 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 19.15 2331 31.01 1.31 1.09E-15 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 25.83 2331 29.99 1.31 9.48E-16 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 32.68 2331 29.94 1.31 9.05E-16 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 39.89 2331 30.01 1.31 8.32E-16 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 46.69 2331 29.67 1.31 7.80E-16 * W15 W15-1 Tuff Highly altered Under hydrostatic pressure - dry 53.64 2331 29.21 1.31 3.65E-16 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 3.45 2583 37.41 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 6.89 2583 37.27 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 13.79 2583 36.62 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 20.68 2583 36.27 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 27.58 2583 35.93 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 34.47 2583 35.08 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 41.37 2583 33.07 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 48.26 2583 31.52 0.94 * W5 W5-1 Tuff Moderately altered Under hydrostatic pressure - dry 55.16 2583 30.06 0.94 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 3.45 2652 11.06 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 6.89 2652 10.1 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 13.79 2652 9.23 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 20.68 2652 8.48 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 27.58 2652 7.98 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 34.47 2652 7.78 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 41.37 2652 7.42 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 48.26 2652 6.11 0.41 * W7 W7-2 Lava Moderately altered Under hydrostatic pressure - dry 55.16 2652 5.81 0.41 * W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 3.45 2665 0.71 0.08 * W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 6.89 2665 0.35 0.08 * W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 13.79 2665 0.06 0.08 * W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 20.68 2665 0.13 0.08 * W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 27.58 2665 0 0.08 *Porosity below detection limit W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 34.47 2665 0 0.08 *Porosity below detection limit W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 41.37 2665 0.03 0.08 * W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 48.26 2665 0 0.08 *Porosity below detection limit W1 W1-2 Lava Fresh-slightly altered Under hydrostatic pressure - dry 55.16 2665 0.01 0.08 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 3.45 2531 14.63 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 6.89 2531 14.28 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 13.79 2531 13.76 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 20.68 2531 13.33 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 27.58 2531 13.26 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 34.47 2531 13.06 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 41.37 2531 12.98 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 48.26 2531 12.72 0.74 * W9 W9-2 Breccia Highly altered Under hydrostatic pressure - dry 55.16 2531 12.76 0.74 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 3.45 2457 8.63 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 6.89 2457 7.62 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 13.79 2457 7 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 20.68 2457 6.11 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 27.58 2457 6.66 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 34.47 2457 4 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 41.37 2457 3.78 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 48.26 2457 3.39 0.37 * W6 W6-2 Lava Moderately altered Under hydrostatic pressure - dry 55.16 2457 3.29 0.37 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 3.45 2642 43.5 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 6.89 2642 41.78 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 13.79 2642 39.85 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 20.68 2642 39.17 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 27.58 2642 37.97 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 34.47 2642 35 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 41.37 2642 33.26 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 48.26 2642 32.27 2.55 * W11 W11-2 Tuff Highly altered Under hydrostatic pressure - dry 55.16 2642 30.63 2.55 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 3.45 2387 30.57 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 6.89 2387 29.91 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 13.79 2387 29.55 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 20.68 2387 29.34 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 27.58 2387 28.89 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 34.47 2387 28.71 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 41.37 2387 28.56 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 48.26 2387 28.21 1.71 * W11 W11-5 Tuff Highly altered Under hydrostatic pressure - dry 55.16 2387 28.05 1.71 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 3.45 2082 4.64 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 6.89 2082 4.13 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 13.79 2082 3.91 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 20.68 2082 3.75 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 27.58 2082 3.51 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 34.47 2082 3.42 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 41.37 2082 3.51 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 48.26 2082 3.29 0.33 * W2 W2-1 Sulfur flow Fresh-slightly altered Under hydrostatic pressure - dry 55.16 2082 3.27 0.33 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 3.45 2293 22.39 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 6.89 2293 21.92 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 13.79 2293 21.51 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 20.68 2293 21 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 27.58 2293 20.88 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 34.47 2293 20.57 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 41.37 2293 20.62 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 48.26 2293 20.35 0.92 * W13 W13-1 Tuff Highly altered Under hydrostatic pressure - dry 55.16 2293 20.47 0.92 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 3.45 2432 15.75 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 6.89 2432 15.16 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 13.79 2432 14.45 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 20.68 2432 14.15 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 27.58 2432 14.32 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 34.47 2432 13.46 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 41.37 2432 11.96 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 48.26 2432 11.67 0.62 * W4 W4-2 Lava Highly altered Under hydrostatic pressure - dry 55.16 2432 11.6 0.62 * W18 W18-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 3.45 2772 43.17 4.59 * W18 W18-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 6.89 2772 35.47 4.59 * W18 W18-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 13.79 2772 29.9 4.59 * W18 W18-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 20.68 2772 24.34 4.59 * W18 W18-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 27.58 2772 14.64 4.59 * W18 W18-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 34.47 2772 13.14 4.59 * W19 W19-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 3.45 2771 57.96 2.01 * W19 W19-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 6.89 2771 56.95 2.01 * W19 W19-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 13.79 2771 54.79 2.01 * W19 W19-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 20.68 2771 52.73 2.01 * W19 W19-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 27.58 2771 49.76 2.01 * W19 W19-1 Vesicular lava Fresh-slightly altered Under hydrostatic pressure - dry 34.47 2771 18.5 2.01 *