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Origin and geological significance of the 1.81 Ga hyalophane-rich pegmatite veins from the high-pressure granulite terrain in the Central Zone of North China Craton

文献类型：期刊论文

作者Qu Min1; Guo JingHui1; Lai Yong2; Peng Peng1; Liu Fu1
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2012-02-01
卷号55期号:2页码:193-203
关键词hyalophane pegmatite zircon Hf-O isotope high-pressure granulite Paleoproterozoic North China Craton
ISSN号1674-7313
DOI10.1007/s11430-011-4330-y
文献子类Article
英文摘要Hyalophane-rich pegmatites are identified from the Manjinggou high-pressure granulite terrain in the Central Zone of North China Craton. Based on field investigation, mineral assemblage and mineral geochemistry, two types of pegmatites can be defined, i.e., hyalophane pegmatite and hyalophane-rich pegmatite. The hyalophane pegmatite is composed of pure hyalophane with 18.7 mol%-19.4 mol% celsian, whereas the hyalophane-rich pegmatite consists of clinopyroxene + titanite + epidote + hyalophane with 11.9 mol%-12.5 mol% celsian. Hyalophane-rich pegmatite has typical magmatic zircons with oscillatory zoning and high Th/U ratios, implying that this type of pegmatite crystallized from special melt similar to magma. SIMS (Cameca 1280) zircon U-Pb dating shows that the crystallization age of the hyalophane-rich pegmatite is 1812 +/- 5 Ma, younger than the regional metamorphic age (peak of ca. 1.85 Ga). Zircon delta O-18 (8.0aEuro degrees aEuro"9.3aEuro degrees) and E > (Hf) (-7.0 to -2.7) values measured by SIMS suggest that the high-pressure granulite terrain was the source of these veins. Therefore, the hyalophane-rich pegmatite veins were likely to be generated by melting of the high-pressure granulite terrain during post collisional uplift. A quick tectonic uplifting process with a velocity of 0.4 to 0.6 mm/a has been estimated for the high-pressure granulite terrane from the Central Zone of North China Craton.
WOS关键词TRACE-ELEMENT COMPOSITION ; PB ZIRCON GEOCHRONOLOGY ; U-PB ; SANGGAN AREA ; RETROGRADED ECLOGITES ; METAMORPHIC EVOLUTION ; HYDROTHERMAL ZIRCON ; TECTONIC EVOLUTION ; HENGSHAN COMPLEX ; T PATH
WOS研究方向Geology
语种英语
WOS记录号WOS:000299508900003
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; 41023009) ; 41023009) ; 41023009) ; 41023009) ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; 41023009) ; 41023009) ; 41023009) ; 41023009) ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; 41023009) ; 41023009) ; 41023009) ; 41023009) ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; National Natural Science Foundation of China(40730315 ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; 41023009) ; 41023009) ; 41023009) ; 41023009)
源URL[http://ir.iggcas.ac.cn/handle/132A11/84714]  
专题中国科学院地质与地球物理研究所
通讯作者Qu Min
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Peking Univ, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Qu Min,Guo JingHui,Lai Yong,et al. Origin and geological significance of the 1.81 Ga hyalophane-rich pegmatite veins from the high-pressure granulite terrain in the Central Zone of North China Craton[J]. SCIENCE CHINA-EARTH SCIENCES,2012,55(2):193-203.
APA Qu Min,Guo JingHui,Lai Yong,Peng Peng,&Liu Fu.(2012).Origin and geological significance of the 1.81 Ga hyalophane-rich pegmatite veins from the high-pressure granulite terrain in the Central Zone of North China Craton.SCIENCE CHINA-EARTH SCIENCES,55(2),193-203.
MLA Qu Min,et al."Origin and geological significance of the 1.81 Ga hyalophane-rich pegmatite veins from the high-pressure granulite terrain in the Central Zone of North China Craton".SCIENCE CHINA-EARTH SCIENCES 55.2(2012):193-203.

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来源：地质与地球物理研究所

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