de.pangaea.dataset997363 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-10-08T12:23:35Z https://doi.pangaea.de/10.1594/PANGAEA.997363 <gco:CharacterString>Core summary for IODP Hole 358-C0024C</gco:CharacterString> 2026-10-08T12:23:33 publication Tobin, Harold J https://orcid.org/0000-0002-1447-6873 information author Hirose, Takehiro https://orcid.org/0000-0002-5397-3346 information author Ikari, Matt J
mikari@marum.de
https://orcid.org/0000-0002-8164-411X information author Kanagawa, Kyuichi author Kimura, Gaku
gaku@eps.s.u-tokyo.ac.jp
https://orcid.org/0000-0002-5049-1069 information author Kinoshita, Masataka
masa@jamstec.go.jp
https://orcid.org/0000-0003-1144-3651 information author Kitajima, Hiroko https://orcid.org/0000-0002-1985-284X information author Saffer, Demian M https://orcid.org/0000-0003-3681-0040 information author Yamaguchi, Asuka
asuka@aori.u-tokyo.ac.jp
https://orcid.org/0000-0003-0974-6530 information author Eguchi, Nobuhisa https://orcid.org/0009-0004-7728-2875 information author Maeda, Lena
maedal@jamstec.go.jp
author Toczko, Sean https://orcid.org/0000-0002-0906-8592 information author IODP Expedition 358 Scientists author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital International Ocean Discovery Program (IODP) Expedition 358 was carried out from October 2018 through March 2019 on the D/V Chikyu in an attempt to reach a plate boundary fault zone at seismogenic depths for the first time in scientific ocean drilling. The goal was to extend Hole C0002P from ~2900 to ~5200 meters below seafloor (mbsf) and cross the seismically interpreted main décollement fault zone with logging while drilling, downhole stress measurements, cuttings sampling, mud gas sampling, and partial coring by drilling a sidetrack to create a new hole (C0002Q). Although drilling reached 3262.5 mbsf, the deepest to date in all of scientific ocean drilling, the effort to drill to and sample the target—the megathrust fault zone—was not successful. Operational challenges in establishing sidetrack holes and advancing them at reasonable rates of penetration limited the new cased hole interval to less than 60 m total at a depth shallower than the previously established casing depth of 2922 mbsf. Combined, the cuttings, logs, and ~60 cm of recovered core from sidetrack Holes C0002Q–C0002T revealed hemipelagic sediments and fine silty turbidites consistent in lithology and physical properties with those recovered in the same depth interval at the same site during Integrated Ocean Drilling Program Expedition 348. Cuttings revealed evidence of only weakly deformed rock, with relatively common calcite veins but few other structural indicators. Because no downhole leak-off tests were made and very little borehole imaging was performed, no further insight into the tectonic context was acquired. After riser drilling at Site C0002 was terminated, drilling at alternate contingency Sites C0024 and C0025 was carried out. Site C0024 targeted the frontal thrust region to sample and log hanging wall rocks and the shallow portion of the décollement zone, and Site C0025 accessed sediments in the Kumano fore-arc basin. At Site C0024, a dedicated logging hole was drilled and a very complete suite of logs were acquired from 0 to 869 mbsf. Preliminary interpretation of log response and images suggests the frontal thrust zone was encountered from about 813 mbsf to the base of the hole, with a zone of notably low resistivity and steep bedding from 850 mbsf to the bottom of the hole. Core samples revealed lithologic units interpreted to be hemipelagic and turbiditic basin fill, trench fill, and Shikoku Basin sediments and encountered deformation potentially associated with a back thrust imaged in seismic reflection data. However, coring had to be terminated at about 620 mbsf, well short of the frontal thrust zone. Site C0025 recovered fore-arc basin sediments underlain by those interpreted to have been deposited in a trench-slope basin setting; no clear transition into older, inner accretionary wedge material was identified during the preliminary analysis. Coring from 400 to 571 mbsf yielded datable material and possible evidence for diapiric intrusion of sediments. completed D/V Chikyu Expedition 358 IODP theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact IODP Integrated Ocean Drilling Program / International Ocean Discovery 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-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 136.7899 136.7899 33.0333 33.0333 2019-03-12T00:00:00 2019-03-12T00:00:00 Sample code/label thematicClassification DSDP/ODP/IODP sample designation Device type thematicClassification Date/Time local thematicClassification Core on deck (JST (Japan Standard Time)) Date/time end thematicClassification Core on deck (UTC) Depth, water, top/minimum physicalMeasurement IODP Depth Scale Terminology; Below rotary table (BRT) m m Depth, water, bottom/maximum physicalMeasurement IODP Depth Scale Terminology; Below rotary table (BRT) m m Section Top in meters below surface physicalMeasurement IODP Depth Scale Terminology mbsf mbsf Section Bot in meters below surface physicalMeasurement IODP Depth Scale Terminology mbsf mbsf Drilled physicalMeasurement IODP Depth Scale Terminology; Advance m m Core length physicalMeasurement According to Hirose et al. (2020); Recovered m m Recovery physicalMeasurement According to Hirose et al. (2020) % % text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.997363?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: 358-C0024C * LATITUDE: 33.033300 * LONGITUDE: 136.789900 * DATE/TIME: 2019-03-12T00:00:00 * ELEVATION: -3843.5 m * NUMBER OF CORES: 1 * RECOVERY: 137 % (1.37 m) * LOCATION: Kumano Basin * CAMPAIGN: Exp358 * BASIS: Chikyu * METHOD/DEVICE: Core drilling Elevation is given in MSL (below mean sea level), water depth BRT (below rotary table) (m): 3872, top depth BRT (m): 3878 bottom depth BRT (m): 3879, top depth (mbsf): 6, bottom depth (mbsf): 7 2019-03-12T00:00:00 Related to <gco:CharacterString>Volume 358: NanTroSEIZE Plate Boundary Deep Riser 4: Nankai Seismogenic/Slow Slip Megathrust</gco:CharacterString> 2020-01-01 publication https://doi.org/10.14379/iodp.proc.358.2020 Tobin, Harold J https://orcid.org/0000-0002-1447-6873 information author Hirose, Takehiro https://orcid.org/0000-0002-5397-3346 information author Ikari, Matt J
mikari@marum.de
https://orcid.org/0000-0002-8164-411X information author Kanagawa, Kyuichi author Kimura, Gaku
gaku@eps.s.u-tokyo.ac.jp
https://orcid.org/0000-0002-5049-1069 information author Kinoshita, Masataka
masa@jamstec.go.jp
https://orcid.org/0000-0003-1144-3651 information author Kitajima, Hiroko https://orcid.org/0000-0002-1985-284X information author Saffer, Demian M https://orcid.org/0000-0003-3681-0040 information author Yamaguchi, Asuka
asuka@aori.u-tokyo.ac.jp
https://orcid.org/0000-0003-0974-6530 information author Eguchi, Nobuhisa https://orcid.org/0009-0004-7728-2875 information author Maeda, Lena
maedal@jamstec.go.jp
author Toczko, Sean https://orcid.org/0000-0002-0906-8592 information author IODP Expedition 358 Scientists author documentDigital Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program 358 References <gco:CharacterString>Expedition 358 methods</gco:CharacterString> 2020-01-01 publication https://doi.org/10.14379/iodp.proc.358.102.2020 Hirose, Takehiro https://orcid.org/0000-0002-5397-3346 information author Ikari, Matt J
mikari@marum.de
https://orcid.org/0000-0002-8164-411X information author Kanagawa, Kyuichi author Kimura, Gaku
gaku@eps.s.u-tokyo.ac.jp
https://orcid.org/0000-0002-5049-1069 information author Kinoshita, Masataka
masa@jamstec.go.jp
https://orcid.org/0000-0003-1144-3651 information author Kitajima, Hiroko https://orcid.org/0000-0002-1985-284X information author Saffer, Demian M https://orcid.org/0000-0003-3681-0040 information author Tobin, Harold J https://orcid.org/0000-0002-1447-6873 information author Yamaguchi, Asuka
asuka@aori.u-tokyo.ac.jp
https://orcid.org/0000-0003-0974-6530 information author Eguchi, Nobuhisa https://orcid.org/0009-0004-7728-2875 information author Maeda, Lena
maedal@jamstec.go.jp
author Toczko, Sean https://orcid.org/0000-0002-0906-8592 information author Bedford, John author Chiyonobu, Shun author Colson, Tobias August author Conin, Marianne
marianne.conin@univ-lorraine.fr
https://orcid.org/0000-0002-6072-3919 information author Cornard, Pauline
cornard@uni-bremen.de
https://orcid.org/0000-0002-5034-937X information author Dielforder, Armin author Doan, Mai-Linh author Dutilleul, Jade author Faulkner, Daniel Roy author Fukuchi, Rina https://orcid.org/0000-0001-9953-2047 information author Guérin, Gilles author Hamada, Yohei https://orcid.org/0000-0001-7196-9271 information author Hamahashi, Mari author Hong, W L https://orcid.org/0000-0002-7247-1827 information author Ijiri, Akira
ijiri@maritime.kobe-u.ac.jp
https://orcid.org/0000-0001-7140-1491 information author Jaeger, Dominik author Jeppson, Tamara https://orcid.org/0000-0001-5526-5530 information author Jin, Zirou author John, Barbara E
bjohn@uwyo.edu
author Kitamura, Manami author Kopf, Achim J
akopf@marum.de
http://www.marum.de/Achim_J._Kopf.html information author Masuda, Harue author Matsuoka, Atsushi
Atsushi.Matsuoka@unh.edu
https://orcid.org/0000-0002-6327-9948 information author Moore, Gregory F https://orcid.org/0000-0002-9649-3174 information author Otsubo, Makoto author Regalla, Christine author Sakaguchi, Arito https://orcid.org/0000-0002-6192-4384 information author Sample, James C author Schleicher, Anja Maria https://orcid.org/0000-0003-4052-8654 information author Sone, Hiroki https://orcid.org/0000-0001-5525-1294 information author Stanislowski, Katja
k.stanislowski@uni-bremen.de
https://orcid.org/0000-0003-1999-9486 information author Strasser, Michael
michael.strasser@uibk.ac.at
https://orcid.org/0000-0003-3991-2405 information author Toki, Tomohiro author Tsuji, Takeshi author Ujiie, Kohtaro author Underwood, Michael B author Yabe, Suguru author Yamamoto, Yuzuru https://orcid.org/0000-0003-2514-3174 information author Zhang, Junli
jzhang@marum.de
author Sanada, Yoshinori https://orcid.org/0000-0002-4048-4076 information author Le Ber, Erwan
erwan.le-ber@umontpellier.fr
https://orcid.org/0000-0002-8020-2029 information author Saito, Saneatsu author documentDigital In: Tobin, H, Hirose, T, Ikari, M, Kanagawa, K, Kimura, G, Kinoshita, M, Kitajima, H, Saffer, D, Yamaguchi, A, Eguchi, N, Maeda, L, Toczko, S, Exedition 358 Scientists, Volume 358: NanTroSEIZE Plate Boundary Deep Riser 4: Nankai Seismogenic/Slow Slip Megathrust, Proceedings of the International Ocean Discovery Program, 358, International Ocean Discovery Program