東台灣蛇綠岩中尖晶石橄欖岩及角閃石輝長岩之礦物化學及全岩化學研究 Mineral and whole rock geochemistry of the spinel peridotite and hornblende gabbro from the East Taiwan Ophiolite, Southeast Taiwan.

dc.contributor 謝奈特 zh_TW
dc.contributor Shellnutt, J. Gregory en_US
dc.contributor.author 謝伯杰 zh_TW
dc.contributor.author Hsieh, Bor-Jie en_US
dc.date.accessioned 2019-09-05T00:47:27Z
dc.date.available 2016-09-01
dc.date.available 2019-09-05T00:47:27Z
dc.date.issued 2015
dc.description.abstract 見英文摘要 zh_TW
dc.description.abstract The South China Sea is one of the youngest marginal ocean basins and is an important feature for reconstructing the tectonic evolution of Southeast Asia. The opening of South China Sea is primarily based on the magnetic anomaly record and is thought to have been active between 32 and 15.5 Ma. The East Taiwan Ophiolite (ETO) is one of the few preserved remnants of South China Sea. The age of ETO is obtained by LA-ICP-MS in situ zircon U/Pb methods and yielded an age of 14.1 ± 0.4 Ma, suggesting that magmatic activity lasted an additional 1.5 million years. New mineral chemistry and bulk rock geochemical data indicate the ETO formed at an oceanic ridge setting. Cr-spinel data (Cr# = 42 – 54) and depleted εNd(t) values (i.e. +9.1) from the peridotites plus the depleted εNd(t) values (i.e. +11.4) and LREE depleted pattern (La/Yb ≦ 1) of the ETO gabbro are consistent with a ridge setting (i.e. N-MORB composition). The East Taiwan Ophiolite is likely a portion of the terminal part of the spreading ridge of South China Sea prior to subduction beneath the Luzon arc. Key words: ophiolite, geochemistry, East Taiwan Ophilite, peridotite, Taiwan, South China Sea en_US
dc.description.sponsorship 地球科學系 zh_TW
dc.identifier G060144005S
dc.identifier.uri http://etds.lib.ntnu.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=id=%22G060144005S%22.&%22.id.&
dc.identifier.uri http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/101146
dc.language 英文
dc.subject 蛇綠岩 zh_TW
dc.subject 地球化學 zh_TW
dc.subject 東台灣蛇綠岩 zh_TW
dc.subject 橄欖石 zh_TW
dc.subject 台灣 zh_TW
dc.subject 南中國海 zh_TW
dc.subject ophilite en_US
dc.subject geochemistry en_US
dc.subject East Taiwan Ophiolite en_US
dc.subject peridotite en_US
dc.subject Taiwan en_US
dc.subject South China Sea en_US
dc.title 東台灣蛇綠岩中尖晶石橄欖岩及角閃石輝長岩之礦物化學及全岩化學研究 zh_TW
dc.title Mineral and whole rock geochemistry of the spinel peridotite and hornblende gabbro from the East Taiwan Ophiolite, Southeast Taiwan. en_US
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