In situ thermal excursions detected in the Nankai Trough forearc slope sediment at IODP NanTroSEIZE Site C0008
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DOI[10.1186/s40623-014-0171-1]to the data of the same series
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- Material Type
- 記事
- Author/Editor
- Masataka KinoshitaHiroaki FukaseShusaku Goto
- Publication, Distribution, etc.
- Publication Date
- 2015-02-05
- Publication Date (W3CDTF)
- 2015-02-05
- Periodical title
- EPS : Earth, Planets and Space
- No. or year of volume/issue
- 67(16)
- Volume
- 67(16)
- ISSN (Periodical Title)
- 1880-5981
- ISSN-L (Periodical Title)
- 1343-8832
- Text Language Code
- eng
- DOI
- 10.1186/s40623-014-0171-1
- Persistent ID (NDL)
- info:ndljp/pid/9227936
- Collection
- Collection (Materials For Handicapped People:1)
- Collection (particular)
- 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他
- Acquisition Basis
- オンライン資料収集制度
- Date Accepted (W3CDTF)
- 2015-04-17T10:30:12+09:00
- Date Captured (W3CDTF)
- 2015-02-24
- Format (IMT)
- application/pdf
- Access Restrictions
- 国立国会図書館内限定公開
- Service for the Digitized Contents Transmission Service
- 図書館・個人送信対象外
- Availability of remote photoduplication service
- 可
- Periodical Title (URI)
- Periodical Title (Persistent ID (NDL))
- info:ndljp/pid/9227920
- Data Provider (Database)
- 国立国会図書館 : 国立国会図書館デジタルコレクション
- Collection (particular)
- 国立国会図書館デジタルコレクション > デジタル化資料 > 雑誌
- Access Restrictions
- 国立国会図書館内限定公開
- Service for the Digitized Contents Transmission Service
- 図書館・個人送信対象外
- Availability of remote photoduplication service
- 可
- Holding library
- 国立国会図書館
- Call No.
- Z19-292
- Periodical Title (Persistent ID (NDL))
- info:ndljp/pid/3427616
- Data Provider (Database)
- 国立国会図書館 : 国立国会図書館雑誌記事索引
- Bibliographic ID (NDL)
- 9227936
- Bibliographic Record Category (NDL)
- 632
- Summary, etc.
- At Integrated Ocean Drilling Program (IODP) Site C0008 in the Nankai Trough slope sediment, we discovered in situ temperature anomalies at 80 to 160 m below the seafloor, where pore fluid Cl and δ 18O excursions were identified and interpreted as pore fluid refreshing due to hydrate dissociation. The volume fraction of hydrates is estimated to be approximately 3% and approximately 40% maximum at Holes C0008A and C0008C, respectively. In the vicinity of these anomalies, we discovered negative and positive temperature excursions of up to 1 K measured in situ using the Advanced Piston Corer Temperature (APC-T) tool attached to the shoe of a hydraulic piston corer. They are significantly larger than the uncertainties caused during data acquisition and processing. Frictional heat due to penetration increased the temperature by >10 K, exceeding the gas/hydrate stability temperature at that depth. This heat is partly consumed by hydrate dissociation, which disturbs the thermal decay curve after penetration, but 2D numerical modeling revealed that hydrate dissociation does not significantly change the extrapolated equilibrium temperature. So far, we cannot suggest any acceptable explanation for the observed thermal anomalies, although we strongly suspect that it is related to hydrate dissociation.論文
- DOI
- 10.1186/s40623-014-0171-1
- Access Restrictions
- インターネット公開
- Related Material (URI)
- Is Referenced By
- Authigenesis of magnetic minerals in gas hydrate-bearing sediments in the Nankai Trough, offshore JapanTemperature limits to deep subseafloor life in the Nankai Trough subduction zoneConstraints on the fluid supply rate into and through gas hydrate reservoir systems as inferred from pore-water chloride and in situ temperature profiles, Krishna-Godavari Basin, IndiaRock magnetic characterization of ferrimagnetic iron sulfides in gas hydrate-bearing marine sediments at Site C0008, Nankai Trough, Pacific Ocean, off-coast Japan
- References
- Origin and transport of pore fluids in the Nankai accretionary prism inferred from chemical and isotopic compositions of pore water at cold seep sites off Kumanometastability of gas hydrateNanTroSEIZE: The IODP Nankai Trough Seismogenic Zone ExperimentDetection and Evaluation of Gas Hydrates in the Eastern Nankai Trough by Geochemical and Geophysical MethodsAnomalously cold temperatures observed at the base of the gas hydrate stability zone on the U.S. Atlantic passive marginGeochemical Process of Gas Hydrate Formation in the Nankai Trough Based on Chloride and Isotopic Anomalies in Interstitial WaterGas hydrates—geological perspective and global changeThe flow of heat through the floor of the Atlantic OceanFormation of natural gas hydrates in marine sediments: 2. Thermodynamic calculations of stability conditions in porous sedimentsExperimental study on isotopic fractionation in water during gas hydrate formationHeat flow survey in the vicinity of the branches of the megasplay fault in the Nankai accretionary prism
- Data Provider (Database)
- 国立情報学研究所 : CiNii Research
- Original Data Provider (Database)
- 学術機関リポジトリデータベース雑誌記事索引データベースCrossrefCiNii Articles科学研究費助成事業データベースCrossrefCrossrefCrossrefCrossref
- Bibliographic ID (NDL)
- 9227936
- NAID
- 120006389527