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Latest Pleistocene crustal cannibalization at Baekdusan (Changbaishan) as traced by oxygen isotopes of zircon from the Millennium Eruption

文献类型：期刊论文

作者Cheong, Albert Chang-sik1,2; Sohn, Young Kwan3; Jeong, Youn-Joong1; Jo, Hui Je1; Park, Kye-Hun4; Lee, Youn Soo5; Li, Xian-Hua6
刊名LITHOS
出版日期2017-07-01
卷号284页码:132-137
关键词Baekdusan Millennium Eruption Zircon O isotope Crustal cannibalization
ISSN号0024-4937
DOI10.1016/j.lithos.2017.04.012
文献子类Article
英文摘要The silicic volcanism of Baekdusan (Changbaishan), which is on the border between North Korea and China, was initiated in the Late Pleistocene and culminated in the 10th century with a powerful (volcanic explosivity index = 7) commendite-trachyte eruption commonly referred to as the "Millennium Eruption." This study presents oxygen isotope data of zircon in trachydacitic pumices ejected during the Millennium Eruption, together with whole-rock geochemical and Sr-Nd-Pb isotopic data that manifest once again the A-type and EMI affinities of the Millennium Eruption magma. The zircon crystals, dated by previous studies at ca. 12-9 ka, show a moderate inter-grain variation in delta O-18 from 3.69%. to 5.03%.. These values are consistently lower than the normal mantle range, and interpreted to have resulted from the digestion of meteoric-hydrothermally altered intracaldera rocks in the shallow magma chamber beneath Baekdusan just prior to the crystallization of the zircons, rather than from derivation from low-delta O-18 sources deep in the mantle. The whole-rock geochemical/isotopic considerations suggest that the magma mainly self-cannibalized the earlier erupted volcanic carapace around the magma chamber. This study highlights the usefulness of zircon oxygen isotopes for characterizing past volcanic activity that has now been commonly eroded away and implies that the generation of Yellowstone-type low-delta O-18 magma is not a rare phenomenon in large-volume silicic eruptions. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词MANTLE TRANSITION ZONE ; A-TYPE GRANITES ; TIANCHI VOLCANO ; NORTHEAST CHINA ; OCEANIC-CRUST ; EASTERN CHINA ; SE CHINA ; U-SERIES ; ROCKS ; KOREA
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000405252300009
出版者ELSEVIER SCIENCE BV
资助机构KBSI(T37414) ; National Research Foundation of korea (NRF) - Korea government (MSIP)(2016R1A2B4007283) ; KBSI(T37414) ; National Research Foundation of korea (NRF) - Korea government (MSIP)(2016R1A2B4007283) ; KBSI(T37414) ; National Research Foundation of korea (NRF) - Korea government (MSIP)(2016R1A2B4007283) ; KBSI(T37414) ; National Research Foundation of korea (NRF) - Korea government (MSIP)(2016R1A2B4007283)
源URL[http://ir.iggcas.ac.cn/handle/132A11/42779]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Cheong, Albert Chang-sik
作者单位1.Korea Basic Sci Inst, Div Earth & Environm Sci, Chungcheongbukdo 28119, South Korea
2.Korea Univ Sci & Technol, Dept Mineral & Groundwater Resources, Daejeon 34113, South Korea
3.Gyeongsang Natl Univ, Dept Earth & Environm Sci, Gyeongsangnamdo 52828, South Korea
4.Pukyong Natl Univ, Dept Earth & Environm Sci, Busan 48513, South Korea
5.Korea Inst Geosci & Mineral Resources, Geol Res Div, Daejeon 34132, South Korea
6.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100027, Peoples R China
推荐引用方式
GB/T 7714		 Cheong, Albert Chang-sik,Sohn, Young Kwan,Jeong, Youn-Joong,et al. Latest Pleistocene crustal cannibalization at Baekdusan (Changbaishan) as traced by oxygen isotopes of zircon from the Millennium Eruption[J]. LITHOS,2017,284:132-137.
APA Cheong, Albert Chang-sik.,Sohn, Young Kwan.,Jeong, Youn-Joong.,Jo, Hui Je.,Park, Kye-Hun.,...&Li, Xian-Hua.(2017).Latest Pleistocene crustal cannibalization at Baekdusan (Changbaishan) as traced by oxygen isotopes of zircon from the Millennium Eruption.LITHOS,284,132-137.
MLA Cheong, Albert Chang-sik,et al."Latest Pleistocene crustal cannibalization at Baekdusan (Changbaishan) as traced by oxygen isotopes of zircon from the Millennium Eruption".LITHOS 284(2017):132-137.

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来源：地质与地球物理研究所

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