PANGAEA_784110 (Table T1) Density, porosity, void ratio and silica crystallinity index of ODP Site 185-1149 sediments Tanaka, Chihiro; Ogawa, Yujiro (Table T1) Density, porosity, void ratio and silica crystallinity index of ODP Site 185-1149 sediments 2006 PANGAEA Dataset 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, 1-11, https://doi.org/10.2973/odp.proc.sr.185.004.2006 https://doi.pangaea.de/10.1594/PANGAEA.784110 Investigator Chihiro Tanaka Earth Science Event label Sample code/label DEPTH, sediment/rock d-spacing Density Porosity Index geoscientificInformation 185-1149A 185-1149B 185-1149C 185-1149D Drilling/drill rig Leg185 Gamma-ray attenuation (GRA) densitometer Joides Resolution 1999-05-23 1999-06-13 Complete 31.3132 31.3425 143.351 143.4004 179.51 m (DEPTH, sediment/rock) 407.41 m (DEPTH, sediment/rock) ODP Ocean Drilling Program unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 180 data points text/tab-separated-values

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). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.784110"!

http://en.wikipedia.org/wiki/Porosity Porosity https://doi.org/10.2973/odp.proc.sr.185.004.2006 Data report: Silica mineral crystallization with textural change of Cretaceous siliceous/calcareous pelagic sedimentary rocks recovered from the northwest Pacific, ODP Leg 185 https://www-odp.tamu.edu:443/ ODP https://www-odp.tamu.edu:443/resolutn.html Joides Resolution DIF 9.4 2026-05-01