鄭偉力2006-08-232018-06-282006-08-232018-06-282000http://ntur.lib.ntu.edu.tw//handle/246246/29303本文分析台灣東北部陸棚與陸坡表層 沈積物與懸浮物中固醇、酯肪醇與酯 肪族碳氫化合物的組成。藻固醇對膽 固醇比值之總和分別為陸棚沈積物： 1.00±0.31 (n=7) ； 陸坡沈積物： 3.29±0.61 (n=7)； 懸浮物1.54±0.19 (n=3)，陸棚沈積物中含膽固醇之相對 比例高出陸坡沈積物許多，這極可能 衍生自殘留沈積物中之貝類；雖然陸 棚沒有表觀沈積，但由分析葉綠素醇 與正酯肪醇的結果顯示有新近脂質從 水柱輸入到陸棚沈積物，於是水柱中 之懸浮物很可能為陸棚沈積物另一固 醇來源；此外，飽和固醇對不飽和固 醇之比值在老的陸棚沈積物較低，而 在年青的陸坡沈積物較高。Bottom sediments and suspended matter from the shelf and slope areas off northeastern Taiwan were analyzed for sterol, n-alkanol and n-alkane compositions. The S(algal sterols /cholesterol) ratios (mean±1s) were 1.00±0.31 (n=7) for the shelf sediments, 3.29±0.61 (n=7) for the slope sediments, and 1.54±0.19 (n=3) for the suspended matter. The much higher proportion of cholesterol in the shelf sediments is most likely derived from mollusks in the relict sediments. An additional sterol source for the shelf sediments probably is suspended matter in the water column although the shelf has no apparent sedimentation. Results from phytol and n-alkanols suggest recent inputs of lipids from the water column to the shelf. The stanol/stenol ratios are lower for the older shelf sediments than for the younger slope sediments.application/pdf51792 bytesapplication/pdfzh-TW國立臺灣大學海洋研究所脂質組成沈積物lipidcompositionsedimentreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/29303/1/892611M002005K2.pdf