學術資源整合系統-相關推薦
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| 作者 | Chiang, Cheng-Shing;Yu, Ho-Shing |
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| 出版日期 | 20230502 |
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| 著作名稱 | Controls of submarine canyons connected to shore during the LGM sea-level rise
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| 會議論文集 | 2023 海洋年會暨國科會成果發表會 |
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| 會議名稱 | 2023 海洋年會暨國科會成果發表會 |
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| 會議地點 | 台中 |
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| 會議日期 | 20230502 |
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| 主辦單位 | 國科會 |
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| 國際性會議 | N |
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| 主題 | 地質 |
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| 關鍵字 | submarine canyons, sea-level rise, earthquake |
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| 摘要 | Only 4% of the world’s submarine canyons reach the coastline and remain active today.
Among 13 submarine canyons offshore Taiwan, we identified seven (n=7, 54%) that
remain connected to shore and active during the present-day highstand. The purpose of
this study is to determine the key controls of canyon heads that remain connected to
shore with terrestrial sediment input during the Holocene sea-level rise. As a result of high uplift rates, narrow coastal range, steep gradients, and frequent earthquakes, typhoons development in Taiwan mountain belt, Taiwan has the highest-yield river and sediment supply. This has led to the transportation of large volumes of sediment to the surrounding deep seas. Narrow steep shelf and large sediment volumes associated with small mountain rivers are the main controls involved in the development of shoreconnected canyons on the active Taiwan margin. Shore-connected canyons are present in greater numbers in the major earthquake zone on the eastern Taiwan margin. Frequent earthquake events are another significant factor in the occurrence of shoreconnected canyons in the Taiwan region. |
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| 系統號 | NO000006888 |
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