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研究生:賴昱甫
研究生(外文):Yu-Fu Lai
論文名稱:宜蘭陸棚與南沖繩海槽沉降通量探討
論文名稱(外文):Sedimentary Flux Study on the Ilan Shelf and the Southern Okinawa Trough
指導教授:林曉武林曉武引用關係
口試委員:黃國銘蘇志杰曾鈞懋
口試日期:2015-05-11
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:海洋研究所
學門:自然科學學門
學類:海洋科學學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:中文
論文頁數:42
中文關鍵詞:宜蘭陸棚南沖繩海槽沉積物沉降通量
外文關鍵詞:Ilan ShelfSouthern Okinawa TroughSedimentary Flux
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台灣東北部主要河川-蘭陽溪每年向東北海域輸出5~17 百萬噸懸浮顆粒經宜蘭陸棚輸入沖繩海槽西南端,顯示蘭陽溪可能為南沖繩海槽之最重要河川懸浮顆粒來源。但蘭陽溪河川輸出量與宜蘭陸棚及南沖繩海槽沉降量收支平衡關係尚未明瞭,故本研究採集宜蘭陸棚、宜蘭海脊與鄰近沖繩海槽陸坡區域沉積物,分析其顆粒大小組成、磁感率、孔隙率與沉積速率(210Pb),期望能藉由宜蘭陸棚、坡與沖繩海槽西端沉積物之沉降通量與蘭陽溪懸浮顆粒量關係,進而了解蘭陽溪懸浮顆粒輸出之重要性。
研究結果顯示,沉積物物理性質特徵宜蘭海脊γ密度較高(低孔隙率),且由宜蘭陸棚往沖繩海槽降低;沉積物磁感率區域變化受到陸源物質傳輸或火山作用影響,呈較不規則變化。沉積物顆粒粒徑呈由粗砂至黏土顆粒含量為主之分布,粗顆粒物質多分布在宜蘭海脊上,陸棚顆粒亦較粗(砂含量 0 ~ 50 %),而陸坡與海槽區則以黏土顆粒為主。沉積速率以蘭陽溪外之陸棚區較高( >0.6 cm/yr),並隨水深增加而快速遞減( <0.2 cm/yr),但至水深約 1000 ~ 1500 m亦有高沉積速率且每年可達 1 公分之沉積中心。由210Pbex核種儲量空間分布顯示,宜蘭陸棚空間儲量較低,而陸坡與沖繩海槽區受到黑潮通過與橫向懸浮顆粒傳輸影響儲量增加。研究區域內總埋藏通量可達約每年 7.17百萬噸,此結果顯示蘭陽溪河川懸浮顆粒可供應研究區域內全部之沉降量。


LangYang River exports 5~17 million tons of suspended materials per year to the Ilan Shelf and later to the southwestern end of the Okinawa Trough. It is the most important suspended materials source of the South Okinawa Trough (SOT). However, mass balance disputes exist between the the source (the LangYang River) and fate of particle deposited in the SOT. This thesis investigates sedimentation rates and sediments properties in order to resolve the unbalance problem. Sediment samples were taken from the Ilan Shelf, Ilan Ridge, and Southern Okinawa Trough and determine the following parameters, grain size, density, porosity, magnetic susceptibility and sedimentation rates.
The results show that Langyang River is indeed the major source of sediments in the region, from both physical properties and sediment budget. Sediment density decreased from shelf eastward to the Okinawa Trough. Magnetic susceptibility values vary irregularly due to inputs from volcanic and hydrothermal fluid of the Turtle Island. Coarse-grained sediments were found at the Ilan Ridge, and also on the Ilan Shelf with sand content reaching more than 50%. Grain size decreased rapidly away from the shelf with fine-grained clay became the predominant type of grain in the SOT.
Sedimentation rates on the Ilan Shelf are high (>0.6cm/yr) and decrease northward and southward with increasing water depth away from the River mouth. However, another depocenter was found away from shelf at water depth about 1000 ~ 1500 m where higher sedimentation rate could reach >1 cm/yr. Based on sedimentation rate, the total sediment buried in this study region could reach 7.17 Mt per year. This value is very similar to that of the river particle annual export value of 6 Mt/year by Kao and Milliman (2005).



中文摘要..................................................................................................Ⅰ
英文摘要..................................................................................................Ⅱ
目錄..........................................................................................................Ⅲ
圖目錄......................................................................................................Ⅴ
表目錄......................................................................................................Ⅵ
第一章 緒論............................................................................................1
1.1 前言..................................................................................................1
1.2 研究區域簡介..................................................................................2
1.3 前人研究..........................................................................................3
1.4 研究目的..........................................................................................4
第二章 樣品採集與分析方法..................................................................5
2.1 採樣區域與方法..............................................................................5
2.1.1採樣位置..................................................................................5
2.1.2採樣方法..................................................................................5
2.2 多重感應元岩心記錄器測量..........................................................6
2.3樣品前處理.......................................................................................7
2.4 實測沉積物含水量、孔隙率、統體密度........................................7
2.5 沉積物粒徑分析..............................................................................8
2.6 210Pb放射性化學分析......................................................................8
第三章 研究結果....................................................................................16
3.1 γ密度、孔隙率、磁感率................................................................16
3.2 實測沉積物之含水量、濕統體密度、孔隙率................................17
3.3 沉積物中黏土顆粒、粉砂、砂含量變化........................................18
3.4 研究區域210Pb化學參數分析......................................................19
第四章 討論............................................................................................30
4.1研究區域沉積速率探討.................................................................30
4.2研究區域沉降通量收支平衡.........................................................36
第五章 結論............................................................................................40
參考文獻..................................................................................................41


中文部分
何春蓀 (1986) 台灣地質概論-台灣地質圖說明書。經濟部中央地質調查所, 共 164 頁。
李時雨 (2001) 以落塵核種探討台灣東北海域之沉積動力。國立台灣大學碩士論文, 共 63 頁。
李逸環、胡健驊 (2000) 宜蘭灣水團與台灣北部陸棚水之關係。 台灣海洋學刊,
第 37 期, 第2 號, 89-104 頁。
林殷田 (2001) 長江三角洲與東海陸棚沉積物內有機碳13C同位素之區域分布與垂直變化。國立台灣大學海洋研究所碩士論文, 共 88 頁。
洪國瑋 (2000) 台灣東北海域陸坡區之沉積沉降顆粒:通量、粒徑分佈及鉛釙不平衡。國立中山大學海洋地質及化學研究所博士論文, 共 212 頁。
凌巧芸 (2007) 南沖繩海槽地震引發濁流沉積物之來源及分布。國立台灣大學地質科學研究所碩士論文, 共 74 頁。
許鶴瀚 (2007) 宜蘭陸棚上的淺層沉積構造及沉積物傳輸模式。國立台灣大學海洋研究所碩士論文, 共 99 頁。
許鶴瀚 (2013) 從震測資料探討臺灣西南及東北海域沉積物散布系統。 國立台灣大學海洋研究所博士論文, 共 166 頁。
張曉嵐 (2003) 宜蘭陸棚與周圍沉積物分布及特徵之初步硏究。國立台灣大學海洋研究所碩士論文, 共 65 頁。
張筱佩 (2011) 台灣東北外海沖繩海槽及龜山島附近之海床沉積物特徵。 國立中央大學地球物理研究所碩士論文, 共 101 頁。
陳星光 (1995) 東海陸棚與陸坡之沉積速率與有機碳的埋藏。國立台灣大學海洋研究所碩士論文, 共 80 頁。.
羅建育 (2005) 運用「多重感應元岩心紀錄器」量測海床底質之聲學特性。海軍軍官季刊,24,16-22頁。
英文部分
Baskaran, M., Nix, J., Kuyper, C., Karunakara, N. (2014). Problems with the dating of sediment core using excess 210 Pb in a freshwater system impacted by large scale watershed changes. Journal of environmental radioactivity, 138, 355-363
Benninger, L. K., Krishnaswami, S. (1981). Sedimentary processes in the inner New York Bight: Evidence from excess 210 Pb and 239,240 Pu. Earth and Planetary Science Letters, 53, 158-174.
Carpenter, R., Bennett, J. T.,Peterson, M. L. (1981). 210 Pb activities in and fluxes to sediments of the Washington continental slope and shelf. Geochimica et Cosmochimica Acta, 45, 1155-1172.
Chen, M. P., Lo, S. C.,Lin, K. L. (1992). Composition and texture of surface sediment indicating the depositional environments off northeast Taiwan.Terrestrial, Atmospheric and Oceanic Sciences, 3, 395-418.
Chung, Y.,Chang, W. C. (1995). Pb-210 fluxes and sedimentation rates on the lower continental slope between Taiwan and the South Okinawa Trough.Continental Shelf Research, 15, 149-164.
Dadson, S. J., Hovius, N., Chen, H., Dade, W. B., Hsieh, M. L., Willett, S. D., Lin, J. C. (2003). Links between erosion, runoff variability and seismicity in the Taiwan orogen.Nature, 426, 648-651.
Flynn, W. W. (1968). The determination of low levels of polonium-210 in environmental materials. Analytica chimica acta, 43, 221-227.
Goldberg, E. D. (1963). Geochronology with 210Pb.Radioactive Dating. I.A.E.A., Vienna, 121-131.
Hong, E., Chen, I. S. (2000). Echo characters and sedimentary processes along a rifting continental margin, northeast of Taiwan. Continental Shelf Research, 20, 599-617.
Hsu, S. C., Lin, F. J., Jeng, W. L.,Tang, T. Y. (1998). The effect of a cyclonic eddy on the distribution of lithogenic particles in the southern East China Sea. Journal of Marine Research, 56, 813-832.
Huh, C. A., Su, C. C., Liang, W. T.,Ling, C. Y. (2004). Linkages between turbidites in the southern Okinawa Trough and submarine earthquakes. Geophysical Research Letters, 31, 12.
Huh, C. A., Su, C. C., Wang, C. H., Lee, S. Y., Lin, I. T. (2006). Sedimentation in the Southern Okinawa Trough—Rates, turbidites and a sediment budget. Marine Geology, 231, 129-139.
Kao, S. J., Lin, F. J., Liu, K. K. (2003). Organic carbon and nitrogen contents and their isotopic compositions in surficial sediments from the East China Sea shelf and the southern Okinawa Trough. Deep Sea Research Part II: Topical Studies in Oceanography, 50, 1203-1217.
Kao, S., Lee, T.,Milliman, J. D. (2005). Calculating highly fluctuated suspended sediment fluxes from mountainous rivers in Taiwan. Terrestrial Atmospheric and Oceanic Sciences, 16, 653-675.
Kuzyk, Z. Z. A., Gobeil, C.,Macdonald, R. W. (2013). 210Pb and 137Cs in margin sediments of the Arctic Ocean: Controls on boundary scavenging. Global Biogeochemical Cycles, 27, 422-439.
Lee, S. Y., Huh, C. A., Su, C. C.,You, C. F. (2004). Sedimentation in the Southern Okinawa Trough: enhanced particle scavenging and teleconnection between the Equatorial Pacific and western Pacific margins. Deep Sea Research, 51, 1769-1780.
Li, Y. H. (1976). Denudation of Taiwan island since the Pliocene epoch.Geology, 4, 105-107.
Liu, K. K., Peng, T. H., Shaw, P. T.,Shiah, F. K. (2003). Circulation and biogeochemical processes in the East China Sea and the vicinity of Taiwan: an overview and a brief synthesis. Deep Sea Research, 50, 1055-1064.
Liu, J. P., Liu, C. S., Xu, K. H., Milliman, J. D., Chiu, J. K., Kao, S. J., Lin, S. W. (2008). Flux and fate of small mountainous rivers derived sediments into the Taiwan Strait. Marine Geology, 256, 65-76.
Milliman, J. D.,Meade, R. H. (1983). World-wide delivery of river sediment to the oceans. The Journal of Geology, 91, 1-21.
Milliman, J. D., Syvitski, J. P. (1992). Geomorphic/tectonic control of sediment discharge to the ocean: the importance of small mountainous rivers.The Journal of Geology, 100, 525-544.
Sibuet, J. C., Deffontaines, B., Hsu, S. K., Thareau, N., Formal, L.,Liu, C. S. (1998). Okinawa trough backarc basin: Early tectonic and magmatic evolution. Journal of Geophysical Research, 103, 30245-30267.
Sibson, R. (1981). A brief description of natural neighbor interpolation (Chapter 2). In V. Barnett. Interpreting Multivariate Data. Chichester: John Wiley. 21–36.
Su, C. C.,Huh, C. A. (2002). 210 Pb, 137 Cs and 239,240 Pu in East China Sea sediments: sources, pathways and budgets of sediments and radionuclides. Marine Geology, 183, 163-178.
Tang, T. Y., Tai, J. H., Yang, Y. J. (2000). The flow pattern north of Taiwan and the migration of the Kuroshio. Continental Shelf Research, 20, 349-371.
Teng, L. S. (1990). Geotectonic evolution of late Cenozoic arc-continent collision in Taiwan. Tectonophysics, 183, 57-76.
Teng, L. S. (1996). Extensional collapse of the northern Taiwan mountain belt. Geology, 24, 949-952.
Turekian, K., Cochran, K., Benninger, L., Aller, R. (1980). The sources and sinks of nuclides in Long Island Sound. Advances in Geophysics, 22, 129-163.
Wong, G. T., Chao, S. Y., Li, Y. H.,Shiah, F. K. (2000). The Kuroshio edge exchange processes (KEEP) study—an introduction to hypotheses and highlights. Continental Shelf Research, 20, 335-347.
Yu, H. S., Hong, E., 1992, Physiographic Characteristics of the Continental Margin, Northeast Taiwan. Terrestrial, Atmospheric and Oceanic Sciences, 3, 3, 419-434.
Yu, H. S., Song, G. S. (2000). Physiographic and geologic frameworks of the shelf-slope region off northeastern Taiwan. Acta Oceanographica Taiwanica, 38, 1-22.

網路資料
Climate Source, The Climate Source Inc., 2002, 1961-1990 Mean annual precipitation in Taiwan. http://www.climatesource.com


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