陳于高2006-07-252018-06-282006-07-252018-06-281999http://ntur.lib.ntu.edu.tw//handle/246246/11721本研究選擇了義竹岩心進行了穩定硫 同位素分析，其中無機硫的含量於岩心深度100m 以上明顯高於其下部，應為全新世海侵的結果，不過依其平均值還原狀態雙硫化物的硫同位素結果顯示，深度-60m 以 上沈積速率變慢，硫酸根離子供應充裕，所以同位素値較輕，深度100m以下僅在-150m和-190m附近有較高之無機硫，另雙 硫化物之硫同位素值在-170m 處有一較輕的訊號，說明了-150m 至-190m 可能亦有海 陸變遷事件。有機硫僅在-190m 處＞1mg/g ，而有機硫之同位素亦在此處顯示一 較輕的結果，說明了此時確有一海侵事件。This study selected the Yihju core as target for stable sulfur isotope analysis. Our result demonstrates that in average the inorganic sulfur concentrations in the sediments above -100m are significant higher than of the below. This is probably resulted from the Holocene transgression. From the sedimentary environmental study, we know that between –40m and –60m is a lagoon environment, and the highest inorganic sulfur isotopic value can prove this conclusion. Among lower core, we found another interval with higher inorganic concentration; it is around depths of -180m and -190m, respectively. Also, a lighter signal of sulfur isotope was found at depth of -190m. These suggest there was a transgressional event happened between depths of -170m and -200m. For the organic sulfur analysis, we found two very light sulfur isotopic values at –60m and -190m. This proves that there are transgressional events indeed occurred at that time.application/pdf31266 bytesapplication/pdfzh-TW國立臺灣大學地質科學系暨研究所義竹岩心穩定硫同位素全新世海侵Yihju CoreStable Sulfur IsotopeHolocene Transgressionreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/11721/1/882116M002015.pdf