SHRIMP U-Pb zircon geochronology and its implications on the Xilin Gol Complex, Inner Mongolia, China
文献类型:期刊论文
作者 | Shi, GH; Liu, DY; Zhang, FQ; Jian, P; Miao, LC; Shi, YR; Tao, H |
刊名 | CHINESE SCIENCE BULLETIN
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出版日期 | 2003-12-01 |
卷号 | 48期号:24页码:2742-2748 |
关键词 | Xilin Gol Complex zircon SHRIMP geochronology inner mongolia. |
ISSN号 | 1001-6538 |
DOI | 10.1360/033wd0191 |
文献子类 | Article |
英文摘要 | The Xilin Gol Complex, consisting of deformed and metamorphosed rocks, was exposed as a large geological unit within the Central Asian Orogenic Belt, but its forming and subsequent deformed and metamorphic time has been an issue of little consensus. Petrographic analyses and SHRIMP dating on biotite-plagioclase gneiss, one of the major rocks within the Xilin Gol Complex, in southeast Xilinhot City, Inner Mongolia, China, where the Xilin Gol Complex was identified and named, yield its lower limit age of 437+/-3 Ma (2sigma) by its magmatic zircon SHRIMP U-Pb dating, and an upper limit age of 316+/-3Ma (2sigma), which was constrained by SHRIMP dating of magmatic zircons from adjacent undeformed garnet-bearing granite which intruded the Complex. The Complex was thus determined to be formed and subsequently deformed/metamorphosed from the late Ordovician-early Silurian to the mid-Carboniferous. Consequently, it is not the Precambrian terrane as previously considered by most geologists. More or less, the major rock-biotite-plagioclase gneiss within the Complex is more likely to be Paleozoic fore-arc turbidite formation before metamorphism and intensive deformation, in which the detrital zircons gave sporadic Precambrian ages as old as up to 3.1 Ga. The source of the turbidite formation is multiple, which may be derived either from the North China Craton, or from the South-Mongolia Micro-continent, or probably came from a potential and undiscovered in situ terranes aged 600-800 Ma or even up to ca 3.1 Ga near the Complex. |
WOS关键词 | SINO-KOREAN CRATON ; AREA ; RECRYSTALLIZATION ; EVOLUTION ; PROVINCE |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
WOS记录号 | WOS:000188504500017 |
出版者 | SCIENCE CHINA PRESS |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/79049] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Shi, GH |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Geol Sci, Inst Geol, SHRIMP Lab, Beijing 100037, Peoples R China |
推荐引用方式 GB/T 7714 | Shi, GH,Liu, DY,Zhang, FQ,et al. SHRIMP U-Pb zircon geochronology and its implications on the Xilin Gol Complex, Inner Mongolia, China[J]. CHINESE SCIENCE BULLETIN,2003,48(24):2742-2748. |
APA | Shi, GH.,Liu, DY.,Zhang, FQ.,Jian, P.,Miao, LC.,...&Tao, H.(2003).SHRIMP U-Pb zircon geochronology and its implications on the Xilin Gol Complex, Inner Mongolia, China.CHINESE SCIENCE BULLETIN,48(24),2742-2748. |
MLA | Shi, GH,et al."SHRIMP U-Pb zircon geochronology and its implications on the Xilin Gol Complex, Inner Mongolia, China".CHINESE SCIENCE BULLETIN 48.24(2003):2742-2748. |
入库方式: OAI收割
来源:地质与地球物理研究所
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