Köster, Male; Liu, Bo; Ijiri, Akira; Spivack, Arthur J; Morono, Yuki; Inagaki, F; Heuer, Verena B; Kasten, Sabine; Henkel, Susann (2025): Carbon isotopic composition of dissolved inorganic carbon (δ13C-DIC) at IODP Site 370-C0023, Nankai Trough subduction zone [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971450
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-10-30 • DOI registered: 2025-10-30
Abstract:
This dataset includes the carbon isotopic composition of dissolved inorganic carbon (δ13C-DIC) of sediment cores that were retrieved from Site C0023 (Hole A) during International Ocean Discovery Program (IODP) Expedition 370 in the Nankai Trough offshore Japan in the Pacific Ocean (Drilling vessel Chikyu). Site C0023 was established on 17 September 2016. Coring terminated on 3 November 2016.
Supplement to:
Köster, Male; Liu, Bo; Ijiri, Akira; Spivack, Arthur J; Morono, Yuki; Inagaki, F; Heuer, Verena B; Kasten, Sabine; Henkel, Susann (accepted): Fading of a sulfate-methane transition in deep and hot subseafloor sediments form the Nankai Trough. https://doi.org/10.1016/j.epsl.2025.119694
References:
Ijiri, Akira; Harada, Naomi; Hirota, Akinari; Tsunogai, Urumu; Ogawa, Nanako O; Itaki, Takuya; Khim, Boo-Keun; Uchida, Masao (2012): Biogeochemical processes involving acetate in sub-seafloor sediments from the Bering Sea shelf break. Organic Geochemistry, 48, 47-55, https://doi.org/10.1016/j.orggeochem.2012.04.004
Project(s):
Coverage:
Latitude: 32.366667 * Longitude: 134.966333
Date/Time Start: 2016-09-17T00:00:00 * Date/Time End: 2016-11-03T00:00:00
Minimum DEPTH, sediment/rock: 190.05 m * Maximum DEPTH, sediment/rock: 1109.08 m
Event(s):
370-C0023A * Latitude: 32.366667 * Longitude: 134.966333 * Date/Time Start: 2016-09-17T00:00:00 * Date/Time End: 2016-11-03T00:00:00 * Elevation: -4776.0 m * Location: Nankai Trough * Campaign: Exp370 * Basis: Chikyu * Method/Device: Drilling/drill rig (DRILL) * Comment: 83 cores, from 189 to 871 mbsf.
Comment:
The carbon isotopic composition of DIC (δ13C-DIC) was determined via isotopic ratio monitoring-gas chromatography mass spectrometry (irm-GC-C-MS; Thermo Finnigan Delta Plus XP isotope-ratio mass spectrometer (IRMS) connected to TRACE GC Ultra gas chromatograph) according to Ijiri et al. (2012) at the Kochi Institute for Core Sample Research, JAMSTEC, Japan. The δ13C-DIC values are expressed relative to VPDB (Vienna Pee Dee Belemnite). The standard deviation from repeated carbon isotope analysis of the laboratory standard (NaHCO3 solution) was <0.2‰.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Ijiri, Akira | J-CORES sample ID | ||
| 2 | Sample code/label | Sample label | Ijiri, Akira | DSDP/ODP/IODP sample designation | ||
| 3 | Sample code/label 2 | Sample label 2 | Ijiri, Akira | |||
| 4 | Depth, sediment/rock, top/minimum | Depth sed top | m | Ijiri, Akira | IODP Depth Scale Terminology | m CSF-A, DSF, MSF, WSF |
| 5 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Ijiri, Akira | IODP Depth Scale Terminology | m CSF-A, DSF, MSF, WSF |
| 6 | Depth, sediment/rock, top/minimum | Depth sed top | m | Ijiri, Akira | IODP Depth Scale Terminology | mCSF-B, DSF, MSF, WSF |
| 7 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Ijiri, Akira | IODP Depth Scale Terminology | m CSF-B, DSF, MSF, WSF |
| 8 | DEPTH, sediment/rock | Depth sed | m | Ijiri, Akira | IODP Depth Scale Terminology | Geocode – m CSF-B, DSF, MSF, WSF |
| 9 | δ13C, dissolved inorganic carbon | δ13C DIC | ‰ PDB | Ijiri, Akira | Gas chromatography | vs. VPDB |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
978 data points