Tanaka Chihiro Ogawa Yujiro 2006 (Table T1) Density, porosity, void ratio and silica crystallinity index of ODP Site 185-1149 sediments dataset https://doi.org/10.1594/PANGAEA.784110 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 book chapter In: Ludden, JN; Plank, T; Escutia, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program) 185 https://doi.org/10.2973/odp.proc.sr.185.004.2006 1-11 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). 143.351 143.4004 31.3132 31.3425 143.363425 31.334975 1999-05-23T15:00:00 1999-06-13T16:15:00 179.51 407.41 ODP Ocean Drilling Program https://www-odp.tamu.edu:443/ Ocean Drilling Program, Texas A&M University ODP http://www-odp.tamu.edu/ https://ror.org/01f5ytq51 185-1149A 31.342 143.3513 North Pacific Ocean -5817.6 1999-05-23T15:00:00 1999-05-26T07:25:00 Leg185 Leg185 1999-04-29T00:00:00 1999-04-29 1999-06-13T00:00:00 1999-06-13 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Plank, Terry Plank, Terry Ludden, John N Ludden, John N doi:10.2973/odp.proc.ir.185.2000 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 191.2 m 174.44 m 23 cores; 191.2 m cored; 0 m drilled; 91.2 % recovery 185-1149B 31.3422 143.351 North Pacific Ocean -5817.5 1999-05-26T07:25:00 1999-06-02T20:00:00 Leg185 Leg185 1999-04-29T00:00:00 1999-04-29 1999-06-13T00:00:00 1999-06-13 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Plank, Terry Plank, Terry Ludden, John N Ludden, John N doi:10.2973/odp.proc.ir.185.2000 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 445.2 m 32.93 m 31 core; 284.6 m cored; 151.1 m drilled; 11.6 % recovery 185-1149C 31.3425 143.351 North Pacific Ocean -5817.6 1999-06-02T20:00:00 1999-06-07T03:00:00 Leg185 Leg185 1999-04-29T00:00:00 1999-04-29 1999-06-13T00:00:00 1999-06-13 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Plank, Terry Plank, Terry Ludden, John N Ludden, John N doi:10.2973/odp.proc.ir.185.2000 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 426.7 m 6.39 m 8 cores; 76.9 m cored; 0 m drilled; 8.3 % recovery 185-1149D 31.3132 143.4004 North Pacific Ocean -5867.3 1999-06-07T05:15:00 1999-06-13T16:15:00 Leg185 Leg185 1999-04-29T00:00:00 1999-04-29 1999-06-13T00:00:00 1999-06-13 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Plank, Terry Plank, Terry Ludden, John N Ludden, John N doi:10.2973/odp.proc.ir.185.2000 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 440.4 m 28.75 m 18 cores; 168.2 m cored; 0 m drilled; 17.1 % recovery 180 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Event label Event Event Sample code/label Sample label Tanaka Chihiro Sample label DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length mbsf Depth sed [m] d-spacing d Å Dimensionless Ratio ψ Tanaka Chihiro d(101) spacing of cristobalite, 2 theta d [Å] Density Density g/cm**3 Density http://dbpedia.org/resource/Density Gamma-ray attenuation (GRA) densitometer Chromatographs & spectrometers gamma-ray spectrometers http://vocab.nerc.ac.uk/collection/L05/current/LAB22/ Tanaka Chihiro Density [g/cm**3] Porosity Poros % vol http://en.wikipedia.org/wiki/Porosity porosity http://purl.obolibrary.org/obo/PATO_0000973 Tanaka Chihiro Poros [% vol] Index Index index Tanaka Chihiro silica crystallinity index, after Murata and Norman (1976, doi:10.2475/ajs.276.9.1120) Index supplement citable author41786 author594 basis5 campaign21656 campaign3383781 event2034536 event2034537 event2034538 event2034539 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst34 license101 method10974 method4987 param107462 param20 param21267 param26 param790 pi41786 project3 ref36543 term1073131 term1073159 term2299479 term23838 term38263 term41056 term43702 term43792 term43794 term43863 term68027