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- Morphology and Origin of the Shoushan Submarine Canyon off Southwestern Taiwan
- Morphological and Seismic Characteristics of the North Mien-Hua Submarine Canyon off Northeastern Taiwan
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- Morphology and Origin of the Hongtsai Submarine Canyon West of the Hengchun Peninsula, Taiwan
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- Morphology and Canyon Forming Processes of Upper Reach of the Penghu Submarine Canyon off Southwestern Taiwan
- Migration of Canyon Systems from Pliocene to Pleistocene in Area between Hsyning Structure and Kaoping Slope and Its Application for Hydrocarbon Exploration
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- The Penghu Submarine Canyon off Southwestern Taiwan: Morphology and Origin
- Spatial and Temporal Evolution of the Plio-Pleistocene Submarine Canyons between Potzu and Tainan, Taiwan
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題 名 | Morphology and Origin of the Shoushan Submarine Canyon off Southwestern Taiwan=臺灣西南海域壽山海底峽谷之形貌及成因 |
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作 者 | 俞何興; 黃譯增; | 書刊名 | 中國地質學會會刊 |
卷 期 | 41:4 1998.11[民87.11] |
頁 次 | 頁565-579 |
分類號 | 351.926 |
關鍵詞 | 海底峽谷; 形貌; 成因; 壽山; 海底峽谷; Submarine canyon; Morphology; Origin; Shoushan canyon; |
語 文 | 英文(English) |
中文摘要 | 利用新收集的水深資料及震測剖面詳細描述臺灣西南海域上部陸坡上壽 山海底峽谷之形貌及地形輪廓。此海底峽谷由上部陸坡向西南方向伸展至水 深一千七百公尺處匯流進入西側較大的澎湖海底峽谷。兩條支流峽谷從西側 水深淺於一千五百公尺處流入壽山峽谷。此峽谷呈現高低起伏,陡壁(約八 度)及V狀橫剖面的典型海底峽谷形貌特徵。谷底的深度由三百九十四公尺 向下游增至一千七百四十八公尺,峽谷全長約五十公里,平均寬度為四點四 公里。 壽山海底峽谷不但可視為單一峽谷,亦可認為是一支流峽谷匯流加入西 側的澎湖峽谷。形貌及震測特徵指出此峽谷可能有混合成因(侵蝕及構造)。 沿著構造弱帶的下切侵蝕作用,形成相當直的流徑特徵,可視為形成壽山海 底峽谷的主因。 |
英文摘要 | Detailed morphology and configuration of the Shoushan Canyon on the upper slope off southwest Taiwan are described using newly acquired bathymetric data and seismic profiles. The canyon extends from the upper slope southwestward to a water depth of 1,700 m where it merges into the larger Penghu Canyon to the west. Two tributary canyons enter into the Shoushan Canyon from the west at water depths shallower than 1,500 m. The canyon shows high relief, steep walls (about 8 degrees) and V-shaped cross sections, which are typical in canyon morphology. The canyon floor increases its depth from 394 m to 1,748 m, stretches for a length of about 50 km and has an averaged width of 4.4 km. The Shoushan Canyon not only can be considered a single submarine canyon but also a tributary canyon that joins into the larger Penghu Canyon to the west. Morphologic and seismic characteristics suggest that the canyon may have a composite origin (e.g., controls of erosion and structure). Vigorous submarine down-cutting along the structurally weak zone is considered as the main cause to form the Shoushan Canyon, which is characterized by a relatively straight course on the Kaoping Slope. |
本系統中英文摘要資訊取自各篇刊載內容。