Methane flux of ODP Sites 190-1178 and 131-808 (Table 1)
A two-dimensional transient model of methane hydrate accumulation is designed and applied in the Nankai accretionary prism. Model results show that the formation and distribution of methane hydrate and free gas is related to value of the thermal flux, the fluid flux, the methane flux supplied from b...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.724774 2024-09-15T18:18:37+00:00 Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) He, Lijuan Matsubayashi, Osamu Lei, Xinglin MEDIAN LATITUDE: 32.541575 * MEDIAN LONGITUDE: 134.711975 * SOUTH-BOUND LATITUDE: 32.352150 * WEST-BOUND LONGITUDE: 134.479583 * NORTH-BOUND LATITUDE: 32.731000 * EAST-BOUND LONGITUDE: 134.944367 * DATE/TIME START: 1990-04-04T00:00:00 * DATE/TIME END: 2000-11-15T00:00:00 * MINIMUM DEPTH, sediment/rock: 400 m * MAXIMUM DEPTH, sediment/rock: 400 m 2006 text/tab-separated-values, 6 data points https://doi.pangaea.de/10.1594/PANGAEA.724774 https://doi.org/10.1594/PANGAEA.724774 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.724774 https://doi.org/10.1594/PANGAEA.724774 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: He, Lijuan; Matsubayashi, Osamu; Lei, Xinglin (2006): Methane hydrate accumulation model for the Central Nankai accretionary prism. Marine Geology, 227(3-4), 201-214, https://doi.org/10.1016/j.margeo.2005.09.019 131-808 190-1178 Age dated COMPCORE Composite Core DEPTH sediment/rock Distance Event label Joides Resolution Latitude of event Leg131 Leg190 Longitude of event Methane flux Ocean Drilling Program ODP Philippine Sea see reference(s) dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.72477410.1016/j.margeo.2005.09.019 2024-07-24T02:31:30Z A two-dimensional transient model of methane hydrate accumulation is designed and applied in the Nankai accretionary prism. Model results show that the formation and distribution of methane hydrate and free gas is related to value of the thermal flux, the fluid flux, the methane flux supplied from below, and methane source within the sediment. The duration of the methane flux is of significant importance. The older the sediments, implying a longer period of methane flux supply from below and within the sediments of the model, the larger the volume percentage of free gas will be. This can explain the occurrence of BSR in a area with lower methane flux observed, but absence of the BSR in the other area with higher methane flux observed. Modeling also predicts that the maximum saturation of methane hydrate is about 1% of the pore space in the area of ODP Site 1178, and the methane hydrate occurrence zone is probably 90–200 m below the sea floor (mbsf), which is supported by both direct and indirect evidence for hydrate. In the area near ODP Site 808, the fault zones having high fluid flow and methane flux may possibly result in methane hydrate formation without BSR occurrence. Dataset Methane hydrate PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(134.479583,134.944367,32.731000,32.352150) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
131-808 190-1178 Age dated COMPCORE Composite Core DEPTH sediment/rock Distance Event label Joides Resolution Latitude of event Leg131 Leg190 Longitude of event Methane flux Ocean Drilling Program ODP Philippine Sea see reference(s) |
spellingShingle |
131-808 190-1178 Age dated COMPCORE Composite Core DEPTH sediment/rock Distance Event label Joides Resolution Latitude of event Leg131 Leg190 Longitude of event Methane flux Ocean Drilling Program ODP Philippine Sea see reference(s) He, Lijuan Matsubayashi, Osamu Lei, Xinglin Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) |
topic_facet |
131-808 190-1178 Age dated COMPCORE Composite Core DEPTH sediment/rock Distance Event label Joides Resolution Latitude of event Leg131 Leg190 Longitude of event Methane flux Ocean Drilling Program ODP Philippine Sea see reference(s) |
description |
A two-dimensional transient model of methane hydrate accumulation is designed and applied in the Nankai accretionary prism. Model results show that the formation and distribution of methane hydrate and free gas is related to value of the thermal flux, the fluid flux, the methane flux supplied from below, and methane source within the sediment. The duration of the methane flux is of significant importance. The older the sediments, implying a longer period of methane flux supply from below and within the sediments of the model, the larger the volume percentage of free gas will be. This can explain the occurrence of BSR in a area with lower methane flux observed, but absence of the BSR in the other area with higher methane flux observed. Modeling also predicts that the maximum saturation of methane hydrate is about 1% of the pore space in the area of ODP Site 1178, and the methane hydrate occurrence zone is probably 90–200 m below the sea floor (mbsf), which is supported by both direct and indirect evidence for hydrate. In the area near ODP Site 808, the fault zones having high fluid flow and methane flux may possibly result in methane hydrate formation without BSR occurrence. |
format |
Dataset |
author |
He, Lijuan Matsubayashi, Osamu Lei, Xinglin |
author_facet |
He, Lijuan Matsubayashi, Osamu Lei, Xinglin |
author_sort |
He, Lijuan |
title |
Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) |
title_short |
Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) |
title_full |
Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) |
title_fullStr |
Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) |
title_full_unstemmed |
Methane flux of ODP Sites 190-1178 and 131-808 (Table 1) |
title_sort |
methane flux of odp sites 190-1178 and 131-808 (table 1) |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.724774 https://doi.org/10.1594/PANGAEA.724774 |
op_coverage |
MEDIAN LATITUDE: 32.541575 * MEDIAN LONGITUDE: 134.711975 * SOUTH-BOUND LATITUDE: 32.352150 * WEST-BOUND LONGITUDE: 134.479583 * NORTH-BOUND LATITUDE: 32.731000 * EAST-BOUND LONGITUDE: 134.944367 * DATE/TIME START: 1990-04-04T00:00:00 * DATE/TIME END: 2000-11-15T00:00:00 * MINIMUM DEPTH, sediment/rock: 400 m * MAXIMUM DEPTH, sediment/rock: 400 m |
long_lat |
ENVELOPE(134.479583,134.944367,32.731000,32.352150) |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Supplement to: He, Lijuan; Matsubayashi, Osamu; Lei, Xinglin (2006): Methane hydrate accumulation model for the Central Nankai accretionary prism. Marine Geology, 227(3-4), 201-214, https://doi.org/10.1016/j.margeo.2005.09.019 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.724774 https://doi.org/10.1594/PANGAEA.724774 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.72477410.1016/j.margeo.2005.09.019 |
_version_ |
1810456711828340736 |