Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates
Seafloor sediment samples collected from southwestern offshore Taiwan have been analyzed for hydrocarbon gases resident in samples by using the technique of headspace gas analysis. The results reveal that the gas content is in tens to thousands ppm (vol. in wet sediments). Both microbial gas (usuall...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Springer
2006-01-01
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| Series: | Terrestrial, Atmospheric and Oceanic Sciences |
| Subjects: | |
| Online Access: |
http://tao.cgu.org.tw/images/attachments/v174p921.pdf
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| _version_ | 1818008481984151552 |
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| author | Jung-Nan Oung Chen-Ying Lee Chao-Shing Lee Cheng-Lung Kuo |
| author_facet | Jung-Nan Oung Chen-Ying Lee Chao-Shing Lee Cheng-Lung Kuo |
| author_sort | Jung-Nan Oung |
| collection | DOAJ |
| description | Seafloor sediment samples collected from southwestern offshore Taiwan have been analyzed for hydrocarbon gases resident in samples by using the technique of headspace gas analysis. The results reveal that the gas content is in tens to thousands ppm (vol. in wet sediments). Both microbial gas (usually called biogenic gas) dominated with methane and thermogenic gas containing C2+ hydrocarbons were detected, inferring that the gases involved in the potential gas hydrate occurrence in the study area may have multiple origins. The microbial gas generated by methanogenic archaea in immature sediments is more widely distributed than thermogenic gas generated in sediments of the catagenesis stage. The presence of thermogenic gas infers an effective petroleum system, which may favor the formation of gas hydrate as well as for oil and gas exploration. |
| first_indexed | 2024-04-14T05:29:49Z |
| format | Article |
| id | doaj.art-1caaaa1c89a44d39b30637d4b8284646 |
| institution | Directory Open Access Journal |
| issn | 1017-0839 2311-7680 |
| language | English |
| last_indexed | 2024-04-14T05:29:49Z |
| publishDate | 2006-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Terrestrial, Atmospheric and Oceanic Sciences |
| spelling | doaj.art-1caaaa1c89a44d39b30637d4b82846462022-12-22T02:09:50ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802006-01-0117492110.3319/TAO.2006.17.4.921(GH)Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas HydratesJung-Nan OungChen-Ying LeeChao-Shing LeeCheng-Lung KuoSeafloor sediment samples collected from southwestern offshore Taiwan have been analyzed for hydrocarbon gases resident in samples by using the technique of headspace gas analysis. The results reveal that the gas content is in tens to thousands ppm (vol. in wet sediments). Both microbial gas (usually called biogenic gas) dominated with methane and thermogenic gas containing C2+ hydrocarbons were detected, inferring that the gases involved in the potential gas hydrate occurrence in the study area may have multiple origins. The microbial gas generated by methanogenic archaea in immature sediments is more widely distributed than thermogenic gas generated in sediments of the catagenesis stage. The presence of thermogenic gas infers an effective petroleum system, which may favor the formation of gas hydrate as well as for oil and gas exploration. http://tao.cgu.org.tw/images/attachments/v174p921.pdf Hydrocarbon gasGas hydrateHeadspace gas analysisSouthwestern offshore Taiwan |
| spellingShingle | Jung-Nan Oung Chen-Ying Lee Chao-Shing Lee Cheng-Lung Kuo Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates Terrestrial, Atmospheric and Oceanic Sciences Hydrocarbon gas Gas hydrate Headspace gas analysis Southwestern offshore Taiwan |
| title | Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates |
| title_full | Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates |
| title_fullStr | Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates |
| title_full_unstemmed | Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates |
| title_short | Geochemical Study on Hydrocarbon Gases in Seafloor Sediments, Southwestern Offshore Taiwan - Implications in the Potential Occurrence of Gas Hydrates |
| title_sort | geochemical study on hydrocarbon gases in seafloor sediments southwestern offshore taiwan implications in the potential occurrence of gas hydrates |
| topic | Hydrocarbon gas Gas hydrate Headspace gas analysis Southwestern offshore Taiwan |
| url |
http://tao.cgu.org.tw/images/attachments/v174p921.pdf
|
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