de.pangaea.dataset785120 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-08-12T13:56:20Z https://doi.pangaea.de/10.1594/PANGAEA.785120 <gco:CharacterString>(Table 2) CT scan measurements of ODP Site 131-808</gco:CharacterString> 1993-01-01 publication https://doi.org/10.1594/PANGAEA.785120 Soh, Wonn author Byrne, Timothy author Taira, Asahiko author Kono, Atsushi author PANGAEA
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https://www.pangaea.de/ information publisher tableDigital Supplement to: Soh, Wonn; Byrne, Timothy; Taira, Asahiko; Kono, Atsushi (1993): Computed tomography (CT) scan image analysis of Site 808 cores: structural and physical property implications. 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, 135-140, https://doi.org/10.2973/odp.proc.sr.131.113.1993 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. completed Soh, Wonn principalInvestigator Taira, Asahiko principalInvestigator ODP Ocean Drilling Program theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 134.944366666666 134.944366666666 32.35215 32.35215 1990-04-04T00:00:00 1990-05-31T00:00:00 43.2 1262.6 Sample code/label thematicClassification DSDP/ODP/IODP sample designation DEPTH, sediment/rock physicalMeasurement m m Attenuation value physicalMeasurement X-ray computed tomography (CT) cm**2/g cm**2/g Attenuation value, standard deviation physicalMeasurement X-ray computed tomography (CT) ± ± Attenuation value physicalMeasurement X-ray computed tomography (CT) cm**2/g cm**2/g Sample comment thematicClassification X-ray computed tomography (CT) Density, wet bulk physicalMeasurement from Taira et al. (1992) g/cm**3 g/cm**3 Porosity physicalMeasurement from Taira et al. (1992) % vol % vol text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.785120?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 131-808 * LATITUDE: 32.352150 * LONGITUDE: 134.944367 * DATE/TIME START: 1990-04-04T00:00:00 * DATE/TIME END: 1990-05-31T00:00:00 * ELEVATION: -4685.1 m * PENETRATION: 4130.2 m * RECOVERY: 732.1 m * LOCATION: Philippine Sea * CAMPAIGN: Leg131 * BASIS: Joides Resolution * METHOD/DEVICE: Composite Core 163 cores; 1463.3 m cored; 1980 m drilled; 50% recovery 1990-04-04T00:00:00 Related to <gco:CharacterString>Sediment deformation and hydrogeology of the Nankai Trough accretionary prism: Synthesis of shipboard results of ODP Leg</gco:CharacterString> 1992-01-01 publication https://doi.org/10.1016/0012-821X(92)90104-4 Taira, Asahiko author Hill, Ian Ashley author Firth, John V
john_frith@odp.tamu.edu
author Berner, Ulrich author Brückmann, Warner author Byrne, Timothy author Chabernau, T author Fisher, Andrew T
afisher@es.uscs.edu
https://orcid.org/0000-0003-2102-8320 information author Foucher, Jean Paul
Jean.Paul.Foucher@ifremer.fr
author Gamo, Toshitaka author Gieskes, Joris M
jgieskes@ucsd.edu
author Hyndman, Roy D author Karig, Daniel E author Kastner, Miriam author Kato, Yukihiro author Lallemant, Siegfried J
siegfried.lallemant@u-cergy.fr
author Lu, Ran author Maltman, Alex J author Moore, Gerald F https://orcid.org/0000-0001-6170-6646 information author Moran, K author Olafsson, Gunnar author Owens, W Brechner
bowens@whoi.edu
http://www.whoi.edu/science/PO/dept/personnel/personnel_scientist_owens.htm information author Pickering, Kevin T
kt.pickering@ucl.ac.uk
author Siena, Franca author Taylor, Elliott author Underwood, Michael B author Wilkinson, Clive author Yamano, Makoto author Zhang, J https://orcid.org/0000-0002-4743-9673 information author documentDigital Earth and Planetary Science Letters 109(3-4) 431-450