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題名 | Tectonic Subsidence and Uplift in the Zeikang-Hopi Area of Southwestern Taiwan Since the Late Pleistocene=臺灣西南部宅港-後壁地區晚更新世以來地體升降運動 |
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作者 | 劉聰桂; 宋國城; 陳冠宇; 畢如蓮; 楊潔豪; 陳平護; Liu, Tsung-kwei; Sung, Quocheng; Chen, Kuan-yu; Pi, Zu-lien; Yang, Chieh-hou; Cheng, Ping-hu; |
期刊 | 中國地質學會會刊 |
出版日期 | 19970100 |
卷期 | 40:1 1997.01[民86.01] |
頁次 | 頁155-165 |
分類號 | 352.72 |
語文 | eng |
關鍵詞 | 地體構造運動; 臺灣西南; 晚更新世; 碳十四定年; Tectonic movement; Southwestern Taiwan; Late pleistocene; Carbon-14 dating; |
英文摘要 | 為瞭解臺灣西南海岸平烏腳病區之沈積與地球化學特性,在宅港鑽一口 220 公尺 井,並連續岩心取樣,由代表古海岸線之沈積物碳十四年代,估計地盤升降速率。結果顯示 宅港地區近一萬二千年來,地盤平均下降速率達 3 mm/yr,而沈積速率達 8 mm/yr。後壁地 區近五萬年來平均地盤上升速率達 1.5 mm/yr。 由宅港 - 後壁地區碳十四年代結果顯示的 地盤長期升降分布型態與前人由大地三角測量所顯示的短期地盤升降分布型態一致。臺灣西 南部的地體構造運動特性為造山帶變形前鋒以西為快速下降,而以東為快速上升。 or the last 12 Ka. On the other hand, the Hopi area has had a minimum average uplift rate of 1.5 mm/yr for the last 50LKa. the pattern of comparatively long-term crustal movement as demonstrated by the �� C dating results from the Zeikang-Hopi area is fundamentally consistent with that shown by previous short-term geodetic triangulation. the tectonic movements in southwestern Taiwan are characterized by a rapid subsidence to the sest of the deformation front and a rapid uplift to the east. |
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