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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 鍾孫霖(Sun-Lin Chung) | |
dc.contributor.author | Chun-Chieh Hsu | en |
dc.contributor.author | 許鈞傑 | zh_TW |
dc.date.accessioned | 2021-06-15T12:35:13Z | - |
dc.date.available | 2016-08-03 | |
dc.date.copyright | 2016-08-03 | |
dc.date.issued | 2016 | |
dc.date.submitted | 2016-08-01 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/50291 | - |
dc.description.abstract | In NW Sumatra, Tertiary sedimentary basins that occur in forearc and backarc settings with respect to the present-day subduction system were deposited in three major terranes, namely, the Woyla Nappe, the East Sumatra block, and the West Sumatra block. NW Sumatra represents the product of complex accretion/collision/subduction histories among these three terranes, which have originated from the eastern margin of Gondwanaland. To better understand the complex histories, we present a detrital zircon study in NW Sumatra that, together with our unpublished work on major magmatic rocks in the area, allow us to reach the following conclusions: (1) Detrital zircons from 14 samples (river sand or sandstone) in the forearc basin reveal seven age peaks at ~1050 Ma (n=74), ~550 Ma (n=65), ~214 Ma (n=138), ~131 Ma (n=14), ~100 Ma (n=65), ~52 Ma (n=238) and 17-0 Ma (n=303), respectively; (2) Detrital zircons from nine samples in the backarc basin show similar age populations; (3) The Late Triassic zircons, with εHf(T) values of -18 to 0, are sourced mainly from the Indosinian granitoids that are widespread in the East Sumatra block; (4) The less abundant Early Cretaceous zircons, with εHf(T) values of -5 to 0, are most likely from the West Sumatra block; (5) The Late Cretaceous zircons, with εHf(T) values of +11 to +16, are from the Woyla Nappe due probably to the Woyla accretion; (6) The Eocene and younger zircons, with εHf(T) values of +6 to +17, are from the initial stage and modern arc magmatic rocks related to the Indian Ocean plate subduction. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T12:35:13Z (GMT). No. of bitstreams: 1 ntu-105-R03224101-1.pdf: 13308078 bytes, checksum: 20f65de876562705dbc617b7e9e77fef (MD5) Previous issue date: 2016 | en |
dc.description.tableofcontents | 誌謝(I)
摘要(II) Abstract(III) 目錄(IV) 圖目(VI) 表目(IX) 一、緒論 (1) 二、地質背景(2) 2.1蘇門答臘地質概況(2) 2.2西北蘇門答臘地體構造(5) 2.2.1滇緬馬地塊(5) 2.2.2西蘇門答臘地塊(7) 2.2.3沃拉推覆體(10) 2.3西北蘇門答臘的火成岩體(11) 2.3.1侵入岩(11) 2.3.2噴出岩(15) 2.3.3岩漿活動(17) 2.3.3.1新生代前(18) 2.3.3.2新生代至今(20) 2.4新生代沉積盆地(22) 三、研究方法(26) 3.1碎屑鋯石同位素示蹤應用(26) 3.1.1鈾鉛年齡(26) 3.1.2鉿同位素(27) 3.2樣本採集(27) 3.3分析方法(36) 3.3.1製備樣本靶(36) 3.3.2鈾鉛定年(37) 3.3.3鉿同位素(39) 3.3.4數據說明(40) 四、碎屑鋯石分析結果(42) 4.1弧前盆地(42) 4.1.1砂岩(42) 4.1.2沉積物(42) 4.2弧後盆地(46) 4.2.1砂岩(46) 4.2.2沉積物(49) 五、討論(51) 5.1沉積物源匯關係(51) 5.1.1晚三疊紀(200~230 Ma)(53) 5.1.2早白堊紀(130~135 Ma)(54) 5.1.3晚白堊紀(97~103 Ma)與早始新世(46~54 Ma)(56) 5.1.4中新世至今(0~17 Ma) (57) 5.2 對比緬甸碎屑鋯石研究 (58) 5.3 滇緬馬地塊地殼演化(59) 六、結論 (60) 七、參考文獻(61) 附錄(77) | |
dc.language.iso | zh-TW | |
dc.title | 西北蘇門答臘碎屑鋯石鈾鉛定年與鉿同位素研究 | zh_TW |
dc.title | Detrital Zircon U-Pb and Hf Isotopic Study in Northwestern Sumatra, Indonesia | en |
dc.type | Thesis | |
dc.date.schoolyear | 104-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 王國龍(Kuo-Lung Wang),董國安(Kuo-An Tung),李皓揚(Hao-Yang Lee),林德嫻(Te-Hsien Lin) | |
dc.subject.keyword | 碎屑鋯石,鈾鉛定年,鉿同位素,蘇門答臘, | zh_TW |
dc.subject.keyword | Detrital zircon,U-Pb dating,Hf isotope,Sumatra, | en |
dc.relation.page | 158 | |
dc.identifier.doi | 10.6342/NTU201601696 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2016-08-01 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 地質科學研究所 | zh_TW |
顯示於系所單位: | 地質科學系 |
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