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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-M0090D [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975495

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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: 38.295317 * Longitude: 144.058800
Date/Time Start: 2021-05-28T00:00:00 * Date/Time End: 2021-05-28T00:00:00
Minimum DEPTH, sediment/rock: 0.465 m * Maximum DEPTH, sediment/rock: 33.520 m
Event(s):
386-M0090D (JTPC-03B)  * Latitude: 38.295317 * Longitude: 144.058800 * Date/Time Start: 2021-05-28T00:00:00 * Date/Time End: 2021-05-28T00:00:00 * Elevation: -7450.0 m * Location: Japan Trench * Campaign: Exp386 * Basis: Kaimei * Method/Device: Giant piston corer (GPC) * Comment: IGSN: IBCR0386EH07001. Comment: 40 m. Location: applied ship's position due to malfunctioning GPC transponder.
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:
330 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-M0090D 386-M0090D-1H-1,46.5-50.5IBCR0386EX8VE010.465530.14369
386-M0090D386-M0090D-1H-1,46.5-50.5IBCR0386EX9VE010.465530.14369
386-M0090D386-M0090D-1H-2,81.5-85.5IBCR0386EXAVE011.320910.20452
386-M0090D386-M0090D-1H-2,81.5-85.5IBCR0386EXBVE011.320910.20452
386-M0090D386-M0090D-1H-3,96.5-100.5IBCR0386EXCVE012.325630.14446
386-M0090D386-M0090D-1H-3,96.5-100.5IBCR0386EXDVE012.325630.14446
386-M0090D386-M0090D-1H-4,97-101IBCR0386EXEVE013.3353060.171835
386-M0090D386-M0090D-1H-4,97-101IBCR0386EXFVE013.3353060.171835
386-M0090D386-M0090D-1H-5,96.5-100.5IBCR0386EXGVE014.34011750.205822
386-M0090D386-M0090D-1H-5,96.5-100.5IBCR0386EXHVE014.34011750.205822
386-M0090D386-M0090D-1H-6,96.5-100.5IBCR0386EXIVE015.34536560.1721409
386-M0090D386-M0090D-1H-6,96.5-100.5IBCR0386EXJVE015.34536560.1721409
386-M0090D386-M0090D-1H-7,96.5-100.5IBCR0386EXKVE016.35067320.1935089
386-M0090D386-M0090D-1H-7,96.5-100.5IBCR0386EXLVE016.35067320.1935089
386-M0090D386-M0090D-1H-8,97-101IBCR0386EXMVE017.4108400.089997
386-M0090D386-M0090D-1H-8,97-101IBCR0386EXNVE017.4108400.089997
386-M0090D386-M0090D-1H-9,98-102IBCR0386EXOVE018.430102540.2051164
386-M0090D386-M0090D-1H-9,98-102IBCR0386EXPVE018.430102540.2051164
386-M0090D386-M0090D-1H-10,99.5-103.5IBCR0386EXQVE019.46595150.1950359
386-M0090D386-M0090D-1H-10,99.5-103.5IBCR0386EXRVE019.46595150.1950359
386-M0090D386-M0090D-1H-11,97-101IBCR0386EXSVE0110.47592340.1850513
386-M0090D386-M0090D-1H-11,97-101IBCR0386EXTVE0110.47592340.1850513
386-M0090D386-M0090D-1H-12,97-101IBCR0386EXUVE0111.485112900.2252025
386-M0090D386-M0090D-1H-12,97-101IBCR0386EXVVE0111.485112900.2252025
386-M0090D386-M0090D-1H-13,97-101IBCR0386EXWVE0112.495111730.1863337
386-M0090D386-M0090D-1H-13,97-101IBCR0386EXXVE0112.495111730.1863337
386-M0090D386-M0090D-1H-14,101.5-105.5IBCR0386EXYVE0113.55063990.1638906
386-M0090D386-M0090D-1H-14,101.5-105.5IBCR0386EXZVE0113.55063990.1638906
386-M0090D386-M0090D-1H-15,96.5-100.5IBCR0386EX0WE0114.55567920.1836782
386-M0090D386-M0090D-1H-15,96.5-100.5IBCR0386EX1WE0114.55567920.1836782
386-M0090D386-M0090D-1H-16,102-106IBCR0386EX2WE0115.61550170.1533222
386-M0090D386-M0090D-1H-16,102-106IBCR0386EX3WE0115.61550170.1533222
386-M0090D386-M0090D-1H-17,102-106IBCR0386EX4WE0116.675152050.2170835
386-M0090D386-M0090D-1H-17,102-106IBCR0386EX5WE0116.675152050.2170835
386-M0090D386-M0090D-1H-18,101-105IBCR0386EX6WE0117.72550700.1926708
386-M0090D386-M0090D-1H-18,101-105IBCR0386EX7WE0117.72550700.1926708
386-M0090D386-M0090D-1H-19,103-107IBCR0386EX8WE0118.795228510.2687214
386-M0090D386-M0090D-1H-19,103-107IBCR0386EX9WE0118.795228510.2687214
386-M0090D386-M0090D-1H-20,104-108IBCR0386EXAWE0119.875169030.2276177
386-M0090D386-M0090D-1H-20,104-108IBCR0386EXBWE0119.875169030.2276177
386-M0090D386-M0090D-1H-21,101-105IBCR0386EXCWE0120.925207710.2777063
386-M0090D386-M0090D-1H-21,101-105IBCR0386EXDWE0120.925207710.2777063
386-M0090D386-M0090D-1H-22,100.5-104.5IBCR0386EXEWE0121.970219230.2491176
386-M0090D386-M0090D-1H-22,100.5-104.5IBCR0386EXFWE0121.970219230.2491176
386-M0090D386-M0090D-1H-23,101-105IBCR0386EXGWE0123.02036180.1623151
386-M0090D386-M0090D-1H-23,101-105IBCR0386EXHWE0123.02036180.1623151
386-M0090D386-M0090D-1H-24,102-106IBCR0386EXIWE0124.080270790.2898364
386-M0090D386-M0090D-1H-24,102-106IBCR0386EXJWE0124.080270790.2898364
386-M0090D386-M0090D-1H-25,102.5-106.5IBCR0386EXKWE0125.145243760.24100936
386-M0090D386-M0090D-1H-25,102.5-106.5IBCR0386EXLWE0125.145243760.24100936
386-M0090D386-M0090D-1H-26,101.5-105.5IBCR0386EXMWE0126.200111160.2250385
386-M0090D386-M0090D-1H-26,101.5-105.5IBCR0386EXNWE0126.200111160.2250385
386-M0090D386-M0090D-1H-27,100-104IBCR0386EXOWE0127.240213300.2681984
386-M0090D386-M0090D-1H-27,100-104IBCR0386EXPWE0127.240213300.2681984
386-M0090D386-M0090D-1H-28,101.5-105.5IBCR0386EXQWE0128.29548210.1827481
386-M0090D386-M0090D-1H-28,101.5-105.5IBCR0386EXRWE0128.29548210.1827481
386-M0090D386-M0090D-1H-29,101-105IBCR0386EXSWE0129.345224020.2880614
386-M0090D386-M0090D-1H-29,101-105IBCR0386EXTWE0129.345224020.2880614
386-M0090D386-M0090D-1H-30,101-105IBCR0386EXUWE0130.395233960.3371661
386-M0090D386-M0090D-1H-30,101-105IBCR0386EXVWE0130.395233960.3371661
386-M0090D386-M0090D-1H-31,100-104IBCR0386EXWWE0131.435119230.2645746
386-M0090D386-M0090D-1H-31,100-104IBCR0386EXXWE0131.435119230.2645746
386-M0090D386-M0090D-1H-32,100-104IBCR0386EXYWE0132.475180310.3059889
386-M0090D386-M0090D-1H-32,100-104IBCR0386EXZWE0132.475180310.3059889
386-M0090D386-M0090D-1H-33,100.5-104.5IBCR0386EX0XE0133.520142960.3047197
386-M0090D386-M0090D-1H-33,100.5-104.5IBCR0386EX1XE0133.520142960.3047197