/* DATA DESCRIPTION: Citation: Tanaka, Chihiro; Ogawa, Yujiro (2006): (Table T1) Density, porosity, void ratio and silica crystallinity index of ODP Site 185-1149 sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.784110, Supplement to: Tanaka, C; Ogawa, Y (2006): Data report: Silica mineral crystallization with textural change of Cretaceous siliceous/calcareous pelagic sedimentary rocks recovered from the northwest Pacific, ODP Leg 185. In: Ludden, JN; Plank, T; Escutia, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 185, 1-11, https://doi.org/10.2973/odp.proc.sr.185.004.2006 Abstract: Siliceous pelagic sediments have been known to be crystallographically altered during burial diagenesis (e.g., Hesse, 1990; Behl and Smith, 1992, doi:10.2973/odp.proc.sr.129.112.1992). In order to know the systematic downhole change of silicification, sediments from Pacific Ocean crust obtained during Ocean Drilling Program Leg 185 Site 1149 (Plank, Ludden, Escutia, et al., 2000, doi:10.2973/odp.proc.ir.185.2000) were analyzed. For collected samples of Early Cretaceous age below the pelagic sediments, which are not as highly silicified, silica mineral crystallization in the siliceous sedimentary rocks is determined by X-ray diffraction (XRD), and the related textural change is shown by using scanning electron microscope (SEM). Project(s): Ocean Drilling Program (ODP) (URI: https://www-odp.tamu.edu:443/) Coverage: MEDIAN LATITUDE: 31.334975 * MEDIAN LONGITUDE: 143.363425 * SOUTH-BOUND LATITUDE: 31.313200 * WEST-BOUND LONGITUDE: 143.351000 * NORTH-BOUND LATITUDE: 31.342500 * EAST-BOUND LONGITUDE: 143.400400 DATE/TIME START: 1999-05-23T15:00:00 * DATE/TIME END: 1999-06-13T16:15:00 MINIMUM DEPTH, sediment/rock: 179.51 m * MAXIMUM DEPTH, sediment/rock: 407.41 m Event(s): 185-1149A * LATITUDE: 31.342000 * LONGITUDE: 143.351300 * DATE/TIME START: 1999-05-23T15:00:00 * DATE/TIME END: 1999-05-26T07:25:00 * ELEVATION: -5817.6 m * PENETRATION: 191.2 m * RECOVERY: 174.44 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg185 * BASIS: Joides Resolution (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 23 cores; 191.2 m cored; 0 m drilled; 91.2 % recovery 185-1149B * LATITUDE: 31.342200 * LONGITUDE: 143.351000 * DATE/TIME START: 1999-05-26T07:25:00 * DATE/TIME END: 1999-06-02T20:00:00 * ELEVATION: -5817.5 m * PENETRATION: 445.2 m * RECOVERY: 32.93 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg185 * BASIS: Joides Resolution (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 31 core; 284.6 m cored; 151.1 m drilled; 11.6 % recovery 185-1149C * LATITUDE: 31.342500 * LONGITUDE: 143.351000 * DATE/TIME START: 1999-06-02T20:00:00 * DATE/TIME END: 1999-06-07T03:00:00 * ELEVATION: -5817.6 m * PENETRATION: 426.7 m * RECOVERY: 6.39 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg185 * BASIS: Joides Resolution (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 8 cores; 76.9 m cored; 0 m drilled; 8.3 % recovery 185-1149D * LATITUDE: 31.313200 * LONGITUDE: 143.400400 * DATE/TIME START: 1999-06-07T05:15:00 * DATE/TIME END: 1999-06-13T16:15:00 * ELEVATION: -5867.3 m * PENETRATION: 440.4 m * RECOVERY: 28.75 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg185 * BASIS: Joides Resolution (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 18 cores; 168.2 m cored; 0 m drilled; 17.1 % recovery Parameter(s): Event label (Event) Sample code/label (Sample label) * PI: Tanaka, Chihiro DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * COMMENT: mbsf d-spacing [Å] (d) * PI: Tanaka, Chihiro * COMMENT: d(101) spacing of cristobalite, 2 theta Density [g/cm**3] (Density) * PI: Tanaka, Chihiro * METHOD/DEVICE: Gamma-ray attenuation (GRA) densitometer Porosity [% vol] (Poros) * PI: Tanaka, Chihiro Index (Index) * PI: Tanaka, Chihiro * COMMENT: silica crystallinity index, after Murata and Norman (1976, doi:10.2475/ajs.276.9.1120) License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 180 data points */ Event Sample label Depth sed [m] d [Å] Density [g/cm**3] Poros [% vol] Index 185-1149A 185-1149A-21R-CC,41-43 179.51 21.75 1.42 185-1149A 185-1149A-21R-CC,41-43 179.51 21.70 185-1149A 185-1149A-21R-CC,41-43 179.51 21.70 185-1149A 185-1149A-21R-CC,41-43 179.51 21.60 2.31 185-1149A 185-1149A-21R-CC,41-43 179.51 21.70 2.22 185-1149A 185-1149A-23R-1,2-5 190.92 21.90 18.0 185-1149A 185-1149A-23R-1,2-5 190.92 21.90 185-1149B 185-1149B-4R-1,22-24 180.22 21.70 20.7 185-1149B 185-1149B-4R-1,22-24 180.22 21.85 1.28 185-1149B 185-1149B-4R-1,22-24 180.22 21.80 185-1149B 185-1149B-4R-1,22-24 180.22 21.85 185-1149B 185-1149B-5R-1,4-8 189.44 2.30 1.8 1.48 185-1149B 185-1149B-6R-1,30-33 199.00 21.80 1017.00 16.2 185-1149B 185-1149B-6R-1,30-33 199.00 21.80 185-1149B 185-1149B-7R-1,8-37 203.78 21.85 1.54 20.9 185-1149B 185-1149B-7R-1,8-37 203.78 21.75 185-1149B 185-1149B-7R-1,8-37 203.78 21.75 185-1149B 185-1149B-8R-1,10-13 208.20 0.82 1.9 185-1149B 185-1149B-9R-1,19-25 217.59 1.79 2.8 1.13 185-1149B 185-1149B-9R-1,34-37 217.74 1.32 185-1149B 185-1149B-10R-1,12-14 226.92 1.65 4.1 185-1149B 185-1149B-11R-1,23-26 236.53 21.85 1.38 25.0 185-1149B 185-1149B-12R-CC,0-32 245.40 21.80 1.37 185-1149B 185-1149B-13R-1,6-10 254.66 21.75 17.0 1.81 185-1149B 185-1149B-14R-1,0-4 263.90 21.80 31.5 185-1149B 185-1149B-16R-1,55-57 282.85 22.00 1.43 43.9 185-1149B 185-1149B-17R-1,5-8 292.05 21.80 1.12 25.7 185-1149B 185-1149B-18R-1,63-65 301.75 1.57 35.1 185-1149B 185-1149B-19R-1,29-32 311.59 1.37 29.4 185-1149B 185-1149B-21R-CC,11-13 330.61 2.3 185-1149B 185-1149B-22R-1,32-35 340.42 1.15 32.9 185-1149B 185-1149B-22R-1,32-35 340.42 0.99 185-1149B 185-1149B-23R-1,3-7 349.73 0.75 2.5 185-1149B 185-1149B-24R-1,31-33 359.51 1.88 3.7 1.48 185-1149B 185-1149B-25R-1,19-23 368.89 1.10 1.8 185-1149B 185-1149B-25R-1,19-23 368.89 0.69 185-1149B 185-1149B-26R-1,39-44 378.49 1.47 4.1 185-1149B 185-1149B-27R-1,14-16 387.74 1.72 34.7 3.91 185-1149B 185-1149B-27R-1,14-16 387.74 2.16 185-1149B 185-1149B-28R1,9-11 397.19 1.70 10.1 2.79 185-1149B 185-1149B-28R-1,9-11 397.19 4.21 185-1149B 185-1149B-28R-1,9-11 397.19 4.28 185-1149B 185-1149B-28R-2,127-130 398.78 1.60 32.2 1.32 185-1149B 185-1149B-28R-2,127-130 398.78 2.77 185-1149B 185-1149B-29R-1,61-64 407.41 23.7 185-1149C 185-1149C-1R-1,98-104 237.00 21.75 185-1149C 185-1149C-1R-2,7-10 237.00 1.32 185-1149C 185-1149C-1R-2,7-10 237.00 22.10 1.46 185-1149C 185-1149C-2R-1,24-31 237.24 22.10 185-1149C 185-1149C-2R-1,24-31 237.24 21.95 2.78 185-1149C 185-1149C-2R-1,24-31 237.24 21.80 185-1149C 185-1149C-3R-1,54-58 284.14 22.00 44.1 185-1149C 185-1149C-4R-1,21-24 293.41 1.7 5.17 185-1149C 185-1149C-4R-1,21-24 293.41 1.50 185-1149C 185-1149C-5R-1,7-19 302.87 1.43 2.4 2.82 185-1149C 185-1149C-6R-1,34-42 312.74 1.76 6.3 3.90 185-1149C 185-1149C-6R-1,34-42 312.74 6.46 185-1149C 185-1149C-8R-1,107-110 390.00 4.57 185-1149C 185-1149C-8R-1,107-110 390.00 2.48 185-1149D 185-1149D-2R-1,23-26 272.43 5.1 185-1149D 185-1149D-2R-1,23-26 272.43 6.01 185-1149D 185-1149D-3R1,5-7 281.65 6.23 185-1149D 185-1149D-3R-1,5-7 281.65 1.70 185-1149D 185-1149D-4R-1,49-51 291.34 1.06 2.2 185-1149D 185-1149D-5R-1,14-15 300.44 2.24 8.0