Soh Wonn Byrne Timothy Taira Asahiko Kono Atsushi 1993 (Table 2) CT scan measurements of ODP Site 131-808 dataset https://doi.org/10.1594/PANGAEA.785120 Soh Wonn Byrne Timothy Taira Asahiko Kono Atsushi 1993 Computed tomography (CT) scan image analysis of Site 808 cores: structural and physical property implications book chapter In: Hill, IA; Taira, A; Firth, JV; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program) 131 https://doi.org/10.2973/odp.proc.sr.131.113.1993 135-140 X-ray computed tomography (CT) is a promising tool that yields data useful for understanding the fine-scale density structure of partly lithified and tectonically deformed sediments. We conducted 21 CT scans of ODP Leg 131 sediments, including whole-round cores and thin-section chips, obtained from the toe of the Nankai accretionary prism. The samples range from highly deformed pieces from the frontal thrust and décollement to homogeneous and essentially undeformed sediments above the frontal thrust and beneath the décollement. In the CT images, kink-like deformation bands and faults are recognized as obvious bright seams, bands, or stripes with relatively high linear attenuation coefficients. The differences in linear attenuation coefficients relative to the matrix range from 0.021 cm**2/g (kink-like deformation band) to 0.038 cm**2/g (fault). These data suggest a 0.10 g/cm**3 to 0.18 g/cm**3 increase in bulk density within the deformation structures, and they appear to be 13% and 33% more compacted than the nondeformed matrix, respectively. In contrast to the samples from the frontal thrust zone, CT images of the décollement sample exhibit relatively homogeneous textures. The attenuation coefficient of the sample of the décollement indicates bulk density and porosity values of 2.45 g/cm**3 and 18%, respectively. The sample, hence, is approximately 50% more compacted than the sediment outside the décollement zone. Taira Asahiko Hill Ian Ashley Firth John V john_frith@odp.tamu.edu Berner Ulrich Brückmann Warner Byrne Timothy Chabernau T Fisher Andrew T afisher@es.uscs.edu http://www.es.ucsc.edu/personnel/Fisher/ 0000-0003-2102-8320 Foucher Jean Paul Jean.Paul.Foucher@ifremer.fr Gamo Toshitaka Gieskes Joris M jgieskes@ucsd.edu Hyndman Roy D Karig Daniel E Kastner Miriam Kato Yukihiro Lallemant Siegfried J siegfried.lallemant@u-cergy.fr Lu Ran Maltman Alex J Moore Gerald F 0000-0001-6170-6646 Moran K Olafsson Gunnar Owens W Brechner bowens@whoi.edu http://www.whoi.edu/science/PO/dept/personnel/personnel_scientist_owens.htm Pickering Kevin T kt.pickering@ucl.ac.uk Siena Franca Taylor Elliott Underwood Michael B Wilkinson Clive Yamano Makoto Zhang J 0000-0002-4743-9673 1992 Sediment deformation and hydrogeology of the Nankai Trough accretionary prism: Synthesis of shipboard results of ODP Leg journal article Earth and Planetary Science Letters 109(3-4) https://doi.org/10.1016/0012-821X(92)90104-4 431-450 134.944366666666 134.944366666666 32.35215 32.35215 134.944366666666 32.35215 1990-04-04T00:00:00 1990-05-31T00:00:00 43.2 1262.6 vertical profile 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 131-808 32.35215 134.94436666667 Philippine Sea -4685.1 1990-04-04T00:00:00 1990-05-31T00:00:00 Leg131 Leg131 1990-03-26T00:00:00 1990-03-26 1990-06-01T00:00:00 1990-06-01 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Taira, Asahiko Taira, Asahiko Hill, Ian Ashley Hill, Ian Ashley doi:10.2973/odp.proc.ir.131.1991 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Composite Core COMPCORE 4130.2 m 732.1 m 163 cores; 1463.3 m cored; 1980 m drilled; 50% recovery 116 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Sample code/label Sample label DSDP/ODP/IODP sample designation hdl:10013/epic.27914.d001 Soh Wonn Sample label (DSDP/ODP/IODP sample designation) 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 Depth sed [m] Attenuation value Attenuation cm**2/g X-ray computed tomography (CT) Soh Wonn Attenuation [cm**2/g] (X-ray computed tomography (CT)) Attenuation value, standard deviation Attenuation std dev ± standard deviation std dev https://en.wikipedia.org/wiki/Standard_deviation X-ray computed tomography (CT) Soh Wonn Attenuation std dev [±] (X-ray computed tomography (CT)) Attenuation value Attenuation cm**2/g X-ray computed tomography (CT) Soh Wonn Attenuation [cm**2/g] (X-ray computed tomography (CT)) Sample comment Sample comment X-ray computed tomography (CT) Soh Wonn Sample comment (X-ray computed tomography (CT)) Density, wet bulk WBD g/cm**3 Density http://dbpedia.org/resource/Density Taira Asahiko from Taira et al. (1992) WBD [g/cm**3] (from Taira et al. (1992)) Porosity Poros % vol http://en.wikipedia.org/wiki/Porosity porosity http://purl.obolibrary.org/obo/PATO_0000973 Taira Asahiko from Taira et al. (1992) Poros [% vol] (from Taira et al. (1992)) supplement citable author170 author177 author20268 author20365 author20911 author21165 author21943 author25438 author26292 author28958 author294 author32058 author32224 author325 author34263 author34912 author35547 author35737 author36191 author37006 author37240 author37302 author37498 author40315 author41369 author41765 author41767 author41769 author41776 author41892 author428 basis5 campaign103 campaign3383396 event2074787 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst34 journal4644 license101 method10895 method5059 method7724 param116046 param116051 param18011 param23 param26 param790 pi325 pi41767 project3 ref36522 ref36609 term1073131 term1073159 term20641 term37764 term38263 term41056 term43792 term43863 topotype3