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http://hdl.handle.net/10261/75996
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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Tréhu, Anne M. | - |
dc.contributor.author | Flemings, Peter B. | - |
dc.contributor.author | Bangs, Nathan L. | - |
dc.contributor.author | Chevallier, Johanna | - |
dc.contributor.author | Gràcia, Eulàlia | - |
dc.contributor.author | Johnson, Joel E. | - |
dc.contributor.author | Liu, C.-S. | - |
dc.contributor.author | Liu, Xiaoli | - |
dc.contributor.author | Riedel, Michael | - |
dc.contributor.author | Torres, Marta E. | - |
dc.date.accessioned | 2013-05-14T07:27:20Z | - |
dc.date.available | 2013-05-14T07:27:20Z | - |
dc.date.issued | 2004-12 | - |
dc.identifier | issn: 0094-8276 | - |
dc.identifier | e-issn: 1944-8007 | - |
dc.identifier.citation | Geophysical Research Letters 31(23): 1-4 (2004) | - |
dc.identifier.uri | http://hdl.handle.net/10261/75996 | - |
dc.description | 4 pages, 3 figures, 1 table, supporting information http://onlinelibrary.wiley.com/doi/10.1029/2004GL021286/suppinfo | - |
dc.description.abstract | Log and core data document gas saturations as high as 90% in a coarse-grained turbidite sequence beneath the gas hydrate stability zone (GHSZ) at south Hydrate Ridge, in the Cascadia accretionary complex. The geometry of this gas-saturated bed is defined by a strong, negative-polarity reflection in 3D seismic data. Because of the gas buoyancy, gas pressure equals or exceeds the overburden stress immediately beneath the GHSZ at the summit. We conclude that gas is focused into the coarse-grained sequence from a large volume of the accretionary complex and is trapped until high gas pressure forces the gas to migrate through the GHSZ to seafloor vents. This focused flow provides methane to the GHSZ in excess of its proportion in gas hydrate, thus providing a mechanism to explain the observed coexistence of massive gas hydrate, saline pore water and free gas near the summit | - |
dc.description.sponsorship | This research used data provided by the Ocean Drilling Program. The ODP is sponsored by the U.S. National Science Foundation (NSF) and participating countries under management of Joint Oceanographic Institutions (JOI), Inc. Funding for this research was provided by the National Science Foundation, the U.S. Science Support Program and the Penn State GeoFluidsII consortium | - |
dc.language.iso | eng | - |
dc.publisher | American Geophysical Union | - |
dc.rights | openAccess | - |
dc.title | Feeding methane vents and gas hydrate deposits at south Hydrate Ridge | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1029/2004GL021286 | - |
dc.relation.publisherversion | https://doi.org/10.1029/2004GL021286 | - |
dc.date.updated | 2013-05-14T07:27:20Z | - |
dc.description.version | Peer Reviewed | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
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Trehu_et_al_2004.pdf | 245,5 kB | Adobe PDF | Visualizar/Abrir |
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