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Strasser, Michael; Ikehara, Ken; Everest, Jeremy D; Maeda, Lena; Hochmuth, Katharina; Grant, Hannah; Stewart, Margaret S; Sakurai, Noriaki; Yokoyama, Takahiro; Bao, Rui; Bellanova, Piero; Brunet, Morgane; Cai, Zhirong; Cattaneo, Antonio; Hsiung, Kan-Hsi; Huang, Jyh-Jaan Steven; Ishizawa, Tahashi; Itaki, Takuya; Jitsuno, Kana; Johnson, Joel E; Kanamatsu, Toshiya; Keep, Myra; Kioka, Arata; Kölling, Martin; Luo, Min; März, Christian; McHugh, Cecilia M G; Micallef, Aaron; Nagahashi, Yoshitaka; Pandey, Dhananjai K; Proust, Jean-Noël; Rasbury, Troy; Riedinger, Natascha; Satoguchi, Yasufumi; Sawyer, Derek E.; Seibert, Chloé; Silver, Maxwell; Straub, Susanne M; Virtasalo, Joonas J; Wang, Yong Hong; Wu, Ting-Wei; Zellers, Sarah D (2025): Headspace gas concentrations of IODP Hole 386-M0088D [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975491

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Published: 2025-03-12 • DOI registered: 2025-04-19

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Abstract:
Headspace (HS) gas concentrations of the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The offshore phase of this expedition took place between 2021-04-13 and 2021-06-01 onboard Japanese R/V Kaimei from and to Yokosuka, Japan, followed by an onshore phase onboard D/V Chikyu between 2022-02-14 – 2022-03-15. Following standard protocols for headspace sampling, all headspace samples were collected onboard (offshore) from the base of each section immediately after section cutting following core recovery on deck. Two parallel headspace samples (IODP standard and requested samples) were collected from the bottom of every GPC core section, the longest core from each site, and the respective shorter trigger core. For each headspace double sample, ~5 cm³ of sediment was collected (using two 2.5 cm³ tip-cut syringes). Each 2.5 cm³ headspace sample was then added to a 20 mL crimp vial with 5 mL of 1 M NaOH. After sealing, the samples were preserved at 4°C until analysis.
For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023
Keyword(s):
Ethane; Headspace Gas; International Ocean Discovery Program (IODP); IODP; Japan Trench; Methane concentration
Related to:
Strasser, Michael; Ikehara, Ken; Everest, Jeremy D; IODP Expedition 386 Scientists (2023): Japan Trench Paleoseismology. Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program, 386, https://doi.org/10.14379/iodp.proc.386.2023
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Coverage:
Latitude: 40.093100 * Longitude: 144.325683
Date/Time Start: 2021-05-06T00:00:00 * Date/Time End: 2021-05-06T00:00:00
Minimum DEPTH, sediment/rock: 1.060 m * Maximum DEPTH, sediment/rock: 35.910 m
Event(s):
386-M0088D (JTPN-07A)  * Latitude: 40.093100 * Longitude: 144.325683 * Date/Time Start: 2021-05-06T00:00:00 * Date/Time End: 2021-05-06T00:00:00 * Elevation: -7525.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EH25001. Comment: 40 m
Comment:
Data was submitted and proofread by Vera Barbara Bender, MARUM - Center for Marine Environmental Sciences (University Bremen) on behalf of ECORD Science Operator Data Management (https://www.ecord.org).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Sample code/labelSample labelDSDP/ODP/IODP sample designation
3 Proposed International Geo Sample NumberProp IGSN
4 DEPTH, sediment/rockDepth sedmGeocode
5 MethaneCH4ppmvGas chromatography, Agilent Technologies, 7890A; injected (split mode) into an Agilent 7890B gas chromatograph equipped with HP PLOT-Q column
6 EthaneC2H6ppmvGas chromatography, Agilent Technologies, 7890A; injected (split mode) into an Agilent 7890B gas chromatograph equipped with HP PLOT-Q column
7 C1/C2 hydrocarbon ratioC1/C2Gas chromatography, Agilent Technologies, 7890A; injected (split mode) into an Agilent 7890B gas chromatograph equipped with HP PLOT-Q column
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
345 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Sample label		3 
Prop IGSN		4 
Depth sed [m]		5 
CH4 [ppmv]		6 
C2H6 [ppmv]		7 
C1/C2
386-M0088D 386-M0088D-1H-1,106-110IBCR0386EXBQB011.0601390.46301
386-M0088D386-M0088D-1H-1,106-110IBCR0386EXCQB011.0601390.46301
386-M0088D386-M0088D-1H-2,103-107IBCR0386EXDQB012.1305650.75752
386-M0088D386-M0088D-1H-2,103-107IBCR0386EXEQB012.1305650.75752
386-M0088D386-M0088D-1H-3,97-101IBCR0386EXFQB013.1406681.03650
386-M0088D386-M0088D-1H-3,97-101IBCR0386EXGQB013.1406681.03650
386-M0088D386-M0088D-1H-4,96.5-100.5IBCR0386EXHQB014.1459370.871082
386-M0088D386-M0088D-1H-4,96.5-100.5IBCR0386EXIQB014.1459370.871082
386-M0088D386-M0088D-1H-5,97-101IBCR0386EXJQB015.15545560.974689
386-M0088D386-M0088D-1H-5,97-101IBCR0386EXKQB015.15545560.974689
386-M0088D386-M0088D-1H-6,98.5-102.5IBCR0386EXLQB016.180115041.0710791
386-M0088D386-M0088D-1H-6,98.5-102.5IBCR0386EXMQB016.180115041.0710791
386-M0088D386-M0088D-1H-7,104-108IBCR0386EXNQB017.260141060.3837074
386-M0088D386-M0088D-1H-7,104-108IBCR0386EXOQB017.260141060.3837074
386-M0088D386-M0088D-1H-8,97-101IBCR0386EXPQB018.270155190.6623444
386-M0088D386-M0088D-1H-8,97-101IBCR0386EXRQB018.270155190.6623444
386-M0088D386-M0088D-1H-9,96.5-100.5IBCR0386EXSQB019.275175181.1515275
386-M0088D386-M0088D-1H-9,96.5-100.5IBCR0386EXTQB019.275175181.1515275
386-M0088D386-M0088D-1H-10,96-100IBCR0386EXUQB0110.275144950.5128384
386-M0088D386-M0088D-1H-10,96-100IBCR0386EXVQB0110.275144950.5128384
386-M0088D386-M0088D-1H-11,97-101IBCR0386EXWQB0111.285223800.6136395
386-M0088D386-M0088D-1H-11,97-101IBCR0386EXXQB0111.285223800.6136395
386-M0088D386-M0088D-1H-12,96-100IBCR0386EXYQB0112.285143510.8816269
386-M0088D386-M0088D-1H-12,96-100IBCR0386EXZQB0112.285143510.8816269
386-M0088D386-M0088D-1H-13,97-101IBCR0386EX0RB0113.295143230.7618890
386-M0088D386-M0088D-1H-13,97-101IBCR0386EX1RB0113.295143230.7618890
386-M0088D386-M0088D-1H-14,96.5-100.5IBCR0386EX2RB0114.300126901.777166
386-M0088D386-M0088D-1H-14,96.5-100.5IBCR0386EX3RB0114.300126901.777166
386-M0088D386-M0088D-1H-15,97-101IBCR0386EX4RB0115.310127290.2452514
386-M0088D386-M0088D-1H-15,97-101IBCR0386EX5RB0115.310127290.2452514
386-M0088D386-M0088D-1H-16,97-101IBCR0386EX6RB0116.320143020.5725130
386-M0088D386-M0088D-1H-16,97-101IBCR0386EX7RB0116.320143020.5725130
386-M0088D386-M0088D-1H-17,101-105IBCR0386EX8RB0117.370163790.5331010
386-M0088D386-M0088D-1H-17,101-105IBCR0386EX9RB0117.370163790.5331010
386-M0088D386-M0088D-1H-18,92-96IBCR0386EXARB0118.330191550.4642042
386-M0088D386-M0088D-1H-18,92-96IBCR0386EXBRB0118.330191550.4642042
386-M0088D386-M0088D-1H-19,97-101IBCR0386EXCRB0119.340186280.5832104
386-M0088D386-M0088D-1H-19,97-101IBCR0386EXDRB0119.340186280.5832104
386-M0088D386-M0088D-1H-20,96-100IBCR0386EXERB0120.340201760.4346464
386-M0088D386-M0088D-1H-20,96-100IBCR0386EXFRB0120.340201760.4346464
386-M0088D386-M0088D-1H-21,96.5-100.5IBCR0386EXGRB0121.345168240.9417931
386-M0088D386-M0088D-1H-21,96.5-100.5IBCR0386EXHRB0121.345168240.9417931
386-M0088D386-M0088D-1H-22,96.5-100.5IBCR0386EXIRB0122.350138880.3046720
386-M0088D386-M0088D-1H-22,96.5-100.5IBCR0386EXJRB0122.350138880.3046720
386-M0088D386-M0088D-1H-23,97-101IBCR0386EXKRB0123.360138520.3638738
386-M0088D386-M0088D-1H-23,97-101IBCR0386EXLRB0123.360138520.3638738
386-M0088D386-M0088D-1H-24,103-107IBCR0386EXMRB0124.430167530.4636384
386-M0088D386-M0088D-1H-24,103-107IBCR0386EXNRB0124.430167530.4636384
386-M0088D386-M0088D-1H-25,101-105IBCR0386EXORB0125.480141540.5326876
386-M0088D386-M0088D-1H-25,101-105IBCR0386EXPRB0125.480141540.5326876
386-M0088D386-M0088D-1H-26,96-100IBCR0386EXQRB0126.480202700.6431590
386-M0088D386-M0088D-1H-26,96-100IBCR0386EXRRB0126.480202700.6431590
386-M0088D386-M0088D-1H-27,97-101IBCR0386EXSRB0127.490195890.4543803
386-M0088D386-M0088D-1H-27,97-101IBCR0386EXTRB0127.490195890.4543803
386-M0088D386-M0088D-1H-28,97-101IBCR0386EXURB0128.500148980.9914984
386-M0088D386-M0088D-1H-28,97-101IBCR0386EXVRB0128.500148980.9914984
386-M0088D386-M0088D-1H-29,81.5-85.5IBCR0386EXWRB0129.35592510.8011564
386-M0088D386-M0088D-1H-30,92-96IBCR0386EXYRB0130.315114620.6517624
386-M0088D386-M0088D-1H-30,92-96IBCR0386EXZRB0130.315114620.6517624
386-M0088D386-M0088D-1H-32,100-104IBCR0386EX0SB0131.865145280.6422743
386-M0088D386-M0088D-1H-32,100-104IBCR0386EX1SB0131.865145280.6422743
386-M0088D386-M0088D-1H-33,96-100IBCR0386EX2SB0132.865160530.6325654
386-M0088D386-M0088D-1H-33,96-100IBCR0386EX3SB0132.865160530.6325654
386-M0088D386-M0088D-1H-34,97-101IBCR0386EX4SB0133.875151910.6224429
386-M0088D386-M0088D-1H-34,97-101IBCR0386EX5SB0133.875151910.6224429
386-M0088D386-M0088D-1H-35,96.5-100.5IBCR0386EX6SB0134.880146160.7619126
386-M0088D386-M0088D-1H-35,96.5-100.5IBCR0386EX7SB0134.880146160.7619126
386-M0088D386-M0088D-1H-36,99-103IBCR0386EX8SB0135.910162310.7122884
386-M0088D386-M0088D-1H-36,99-103IBCR0386EX9SB0135.910162310.7122884