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題 名 | 琉球嶼的海階及珊瑚定年研究 |
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作 者 | 石再添; | 書刊名 | 國立臺灣師範大學地理研究報告 |
卷 期 | 17 1991.03[民80.03] |
頁 次 | 頁85-97 |
分類號 | 351.4 |
關鍵詞 | 定年; 珊瑚; 海階; 琉球嶼; |
語 文 | 中文(Chinese) |
英文摘要 | The Liu-chiu Yü is a raised coral reef island, located southwest offshore 14 km from Tung-kang, Pintung Hsien. Two structural depression lines striking NE-SW and E-W separate the island into four blocks. The Liu-Chiu Yü Limestone overlays the Liu-Chiu Yü Mudstone with a uncon-formity relationship. Three steps of marine terraces can be recognized: Pleistonce I, Pleistonce II and Holocene terrace. Based on coral reef dating, elevation of samples and sea level curve, the average uplift rate of west coast is estimated about 2 mm/yr during the period from 34 ka to 10 ka YBP whereas 0.4 mm/yr in east coast since Holocene. The uplift and deformation of marine terraces are influenced both by the tectonic stress coming southweast and downwarping near Kao-Ping Drowned Valley. |
本系統中英文摘要資訊取自各篇刊載內容。