10.1594/PANGAEA.784110Tanaka, ChihiroChihiroTanakaOgawa, YujiroYujiroOgawaPANGAEA2006Event labelSample code/labelDEPTH, sediment/rockd-spacingDensityPorosityIndexDrilling/drill rigGamma-ray attenuation (GRA) densitometerLeg185Joides ResolutionOcean Drilling Program (ODP)1999-05-23T15:00:00/1999-06-13T16:15:00Supplementary Dataset10.2973/odp.proc.sr.185.004.2006180 data pointstext/tab-separated-valuesCreative Commons Attribution 3.0 UnportedSiliceous 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).Supplement to: Tanaka, Chihiro; Ogawa, Yujiro (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, 1-11143.351143.400431.313231.3425North Pacific Ocean