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題 名 | Alkane Distributions and Their Geochemical Significance in the Tzai-Kang Core of the Coastal Plain, Southwestern Taiwan=臺灣西南海岸平原宅港井岩心的烷烴分佈及其地球化學意義 |
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作 者 | 翁榮南; 宋國城; 林義棟; 劉聰桂; 楊潔豪; | 書刊名 | 中國地質學會會刊 |
卷 期 | 40:2 1997.04[民86.04] |
頁 次 | 頁381-400 |
分類號 | 351.983 |
關鍵詞 | 有機地化; 生物指標; 海岸平原; 沉積環境; Organic geochemistry; Biomarker; Coastal plain; Depositional environment; |
語 文 | 英文(English) |
英文摘要 | 本研究分析臺灣西南海岸平原宅港井若心的正烷烴、花烷和甾烷,探討其地化和 地質意義。綜合各類烷烴的分佈,西南海岸乎原沉積物中的烴類有各種來源,包括來自上游 區的再沉積物,土物性的陸生高等植物和少量的藻類或微生物,其中以再沉積的化石烴類為 主,普遍存在樣品中,顯示生物性有機質的保存性差且因沉積速度率大,受到大量再沉積物 的稀釋。若心中的烷烴分佈記錄了其有機來源和各種地質地化作用,本研究探討各樣品的正 烷烴分佈與其沉積環境之關係, 發現陸相沉積樣品中含有較多量的高等植物 n- C27-n-C33 正烷烴, 而潟湖沉積環境的樣品中具有較多的 n-C �E -n-C �洛謁J烴,此對比關係顯示宅 港井若心的正烷烴分佈可以反映出沉積環境。 Coastal Plain. Organic origins and processes occurring during the transportation and after the deposition are recorded in the alkane distribution. Attempts have been made to correlate the n-alkane distributions reflect the non-marine environments by showing relatively higher amounts of terrestrial n-alkanes in the range of n-C27-n-C33 derived from terrestrial higher plants. On the other hand, the samples of the lagoonal environment always show significantly higher amounts of low molecular weight n-alkanes ranging from n-C �E -n-C �� which are related to the algae/microbial origin. This correlation infers that n-alkane distributions in the Tzai-kang core might, to some extent, reflect the environmental changes indicated by foraminifera examination. |
本系統中英文摘要資訊取自各篇刊載內容。