Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution
ABSTRACT: The Qinghai-Tibet Plateau (also referred to as the Plateau) is the largest area bearing alpine permafrost region in the world and thus is endowed with great formation conditions and prospecting potential of natural gas hydrates (NGH). Up to now, one NGH accumulation, two inferred NGH accum...
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KeAi Communications Co., Ltd.
2021-03-01
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| Series: | China Geology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096519221000021 |
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| author | You-hai Zhu Shou-ji Pang Rui Xiao Shuai Zhang Zhen-quan Lu |
| author_facet | You-hai Zhu Shou-ji Pang Rui Xiao Shuai Zhang Zhen-quan Lu |
| author_sort | You-hai Zhu |
| collection | DOAJ |
| description | ABSTRACT: The Qinghai-Tibet Plateau (also referred to as the Plateau) is the largest area bearing alpine permafrost region in the world and thus is endowed with great formation conditions and prospecting potential of natural gas hydrates (NGH). Up to now, one NGH accumulation, two inferred NGH accumulations, and a series of NGH-related anomalous indicators have been discovered in the Plateau, with NGH resources predicted to be up to 8.88×1012 m3. The NGH in the Qinghai-Tibet Plateau have complex gas components and are dominated by deep thermogenic gas. They occur in the Permian-Jurassic strata and are subject to thin permafrost and sensitive to environment. Furthermore, they are distinctly different from the NGH in the high-latitude permafrost in the arctic regions and are more different from marine NGH. The formation of the NGH in the Plateau obviously couples with the uplift and permafrost evolution of the Plateau in spatial-temporal terms. The permafrost and NGH in the Qilian Mountains and the main body of the Qinghai-Tibet Plateau possibly formed during 2.0–1.28 Ma BP and about 0.8 Ma BP, respectively. Under the context of global warming, the permafrost in the Qinghai-Tibet Plateau is continually degrading, which will lead to the changes in the stability of NGH. Therefore, The NGH of the Qinghai-Tibet Plateau can not be ignored in the study of the global climate change and ecological environment.©2021 China Geology Editorial Office. |
| first_indexed | 2024-04-10T16:57:18Z |
| format | Article |
| id | doaj.art-469763b0a21b4ef08208a030eb5a1372 |
| institution | Directory Open Access Journal |
| issn | 2096-5192 |
| language | English |
| last_indexed | 2024-04-10T16:57:18Z |
| publishDate | 2021-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | China Geology |
| spelling | doaj.art-469763b0a21b4ef08208a030eb5a13722023-02-07T04:22:27ZengKeAi Communications Co., Ltd.China Geology2096-51922021-03-01411731Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolutionYou-hai Zhu0Shou-ji Pang1Rui Xiao2Shuai Zhang3Zhen-quan Lu4Oil and Gas Resources Survey, China Geological Survey, Beijing 100083, China; First author: E-mail address: 1768210693@qq.com (You-hai Zhu).Oil and Gas Resources Survey, China Geological Survey, Beijing 100083, China; Corresponding author: E-mail address: psj0409@163.com (Shou-ji Pang).Oil and Gas Resources Survey, China Geological Survey, Beijing 100083, ChinaOil and Gas Resources Survey, China Geological Survey, Beijing 100083, ChinaOil and Gas Resources Survey, China Geological Survey, Beijing 100083, ChinaABSTRACT: The Qinghai-Tibet Plateau (also referred to as the Plateau) is the largest area bearing alpine permafrost region in the world and thus is endowed with great formation conditions and prospecting potential of natural gas hydrates (NGH). Up to now, one NGH accumulation, two inferred NGH accumulations, and a series of NGH-related anomalous indicators have been discovered in the Plateau, with NGH resources predicted to be up to 8.88×1012 m3. The NGH in the Qinghai-Tibet Plateau have complex gas components and are dominated by deep thermogenic gas. They occur in the Permian-Jurassic strata and are subject to thin permafrost and sensitive to environment. Furthermore, they are distinctly different from the NGH in the high-latitude permafrost in the arctic regions and are more different from marine NGH. The formation of the NGH in the Plateau obviously couples with the uplift and permafrost evolution of the Plateau in spatial-temporal terms. The permafrost and NGH in the Qilian Mountains and the main body of the Qinghai-Tibet Plateau possibly formed during 2.0–1.28 Ma BP and about 0.8 Ma BP, respectively. Under the context of global warming, the permafrost in the Qinghai-Tibet Plateau is continually degrading, which will lead to the changes in the stability of NGH. Therefore, The NGH of the Qinghai-Tibet Plateau can not be ignored in the study of the global climate change and ecological environment.©2021 China Geology Editorial Office.http://www.sciencedirect.com/science/article/pii/S2096519221000021Natural gas hydrates (NGH)PermafrostGlobal climate changeQinghai-Tibet Plateau |
| spellingShingle | You-hai Zhu Shou-ji Pang Rui Xiao Shuai Zhang Zhen-quan Lu Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution China Geology Natural gas hydrates (NGH) Permafrost Global climate change Qinghai-Tibet Plateau |
| title | Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution |
| title_full | Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution |
| title_fullStr | Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution |
| title_full_unstemmed | Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution |
| title_short | Natural gas hydrates in the Qinghai-Tibet Plateau: Characteristics, formation, and evolution |
| title_sort | natural gas hydrates in the qinghai tibet plateau characteristics formation and evolution |
| topic | Natural gas hydrates (NGH) Permafrost Global climate change Qinghai-Tibet Plateau |
| url | http://www.sciencedirect.com/science/article/pii/S2096519221000021 |
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