Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan
Cored sediments from the gas hydrate prospect area offshore southwestern Taiwan exhibit porosities, water contents, and bulk densities comparable to sediments in other gas-hydrate potential areas. Short-distance transport and rapid deposition of the sediments are implied by their poor sorting and de...
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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 |
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http://tao.cgu.org.tw/images/attachments/v174p981.pdf
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author | Wei-Teh Jiang Ju-Chin Chen Bo-Jiun Huang Chun-Jung Chen Yung-Tan Lee Pin-Ru Huang1 Chieh-Chia Lung Shao-Wei Huang |
author_facet | Wei-Teh Jiang Ju-Chin Chen Bo-Jiun Huang Chun-Jung Chen Yung-Tan Lee Pin-Ru Huang1 Chieh-Chia Lung Shao-Wei Huang |
author_sort | Wei-Teh Jiang |
collection | DOAJ |
description | Cored sediments from the gas hydrate prospect area offshore southwestern Taiwan exhibit porosities, water contents, and bulk densities comparable to sediments in other gas-hydrate potential areas. Short-distance transport and rapid deposition of the sediments are implied by their poor sorting and detrital and clay mineralogy. These features and the organicrich nature of the sediments present an environment suitable for formation of gas hydrates. High methane concentrations of porewaters and gas-escape structures of the sediments further imply possible occurrence of gas hydrates in the region. Prominent overgrowth microstructures on authigenic pyrite framboids at shallow depths are consistent with sulfate reduction and pyrite precipitation related to migration and oxidation of methane possibly released from gas hydrate zones at later stages of early diagenesis. |
first_indexed | 2024-04-14T05:16:38Z |
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id | doaj.art-92d184670e9e46249718679b6dcf9f00 |
institution | Directory Open Access Journal |
issn | 1017-0839 2311-7680 |
language | English |
last_indexed | 2024-04-14T05:16:38Z |
publishDate | 2006-01-01 |
publisher | Springer |
record_format | Article |
series | Terrestrial, Atmospheric and Oceanic Sciences |
spelling | doaj.art-92d184670e9e46249718679b6dcf9f002022-12-22T02:10:20ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802006-01-0117498110.3319/TAO.2006.17.4.981(GH)Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern TaiwanWei-Teh JiangJu-Chin ChenBo-Jiun HuangChun-Jung ChenYung-Tan LeePin-Ru Huang1Chieh-Chia LungShao-Wei HuangCored sediments from the gas hydrate prospect area offshore southwestern Taiwan exhibit porosities, water contents, and bulk densities comparable to sediments in other gas-hydrate potential areas. Short-distance transport and rapid deposition of the sediments are implied by their poor sorting and detrital and clay mineralogy. These features and the organicrich nature of the sediments present an environment suitable for formation of gas hydrates. High methane concentrations of porewaters and gas-escape structures of the sediments further imply possible occurrence of gas hydrates in the region. Prominent overgrowth microstructures on authigenic pyrite framboids at shallow depths are consistent with sulfate reduction and pyrite precipitation related to migration and oxidation of methane possibly released from gas hydrate zones at later stages of early diagenesis. http://tao.cgu.org.tw/images/attachments/v174p981.pdf Gas hydrateTaiwanPorosityDensityClay mineralsPyrite |
spellingShingle | Wei-Teh Jiang Ju-Chin Chen Bo-Jiun Huang Chun-Jung Chen Yung-Tan Lee Pin-Ru Huang1 Chieh-Chia Lung Shao-Wei Huang Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan Terrestrial, Atmospheric and Oceanic Sciences Gas hydrate Taiwan Porosity Density Clay minerals Pyrite |
title | Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan |
title_full | Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan |
title_fullStr | Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan |
title_full_unstemmed | Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan |
title_short | Mineralogy and Physical Properties of Cored Se diments from the Gas Hydrate Potential Area of Offshore Southwestern Taiwan |
title_sort | mineralogy and physical properties of cored se diments from the gas hydrate potential area of offshore southwestern taiwan |
topic | Gas hydrate Taiwan Porosity Density Clay minerals Pyrite |
url |
http://tao.cgu.org.tw/images/attachments/v174p981.pdf
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