Exhumation tectonics of the ultrahigh-pressure metamorphic rocks in the Qinling orogen in east China: New petrological-structural-radiometric insights from the Shandong Peninsula
文献类型:期刊论文
作者 | Faure, M; Lin, W; Monie, P; Le Breton, N; Poussineau, S; Panis, D; Deloule, E |
刊名 | TECTONICS
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出版日期 | 2003-05-17 |
卷号 | 22期号:3 |
ISSN号 | 0278-7407 |
DOI | 10.1029/2002TC001450 |
文献子类 | Article |
英文摘要 | [1] In eastern China, the Sulu area is recognized as the eastern extension of the Qinling-Dabie Belt, which is famous for its ultrahigh-pressure (UHP) metamorphism. Although numerous petrologic and geochemical works are available, structural data are still rare. This paper provides the first extensive study of bulk geometry and kinematic analysis of the Shandong Peninsula. The study area is divided into three tectonic areas by Cretaceous faults, namely, a southern UHP belt or Sulu area, a northern migmatite area, and an eastern eclogite and migmatite area or Weihai area. Conversely to the deeply entrenched idea that the later area belongs to the North China Belt, and the two others to the South China Block (SCB), we argue that all three areas are parts of the SCB. Structural, petrologic, Ar-40/Ar-39, and U/Pb data comply with this new interpretation. In the North Shandong area, mafic granulites enclosed as blocks within gneissic migmatites do not significantly differ from the Sulu and Weihai eclogites which also experienced a granulite facies overprint before migmatization. The circa 210 - 200 Ma age of the main ductile deformation is related to an extensional event during the Triassic ( or Indosinian) orogeny. This date corresponds to the temperature climax, but the time of the pressure peak, i.e., the real age of the UHP metamorphism is discussed. |
WOS关键词 | SULU UHP TERRANE ; SM-ND ; GARNET PERIDOTITES ; SOUTH CHINA ; NORTHEASTERN JIANGSU ; COESITE-ECLOGITE ; NORTH CHINA ; LU TERRANE ; TAN-LU ; DABIE |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
WOS记录号 | WOS:000183110100001 |
出版者 | AMER GEOPHYSICAL UNION |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/78299] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Faure, M |
作者单位 | 1.Univ Orleans, Inst Sci Terre Orleans, UMR 6113, F-45067 Orleans 2, France 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Montpellier 2, Lab Geophys Tecton & Sedimentol, F-34095 Montpellier, France 4.Ctr Rech Petrog & Geochim, F-54501 Vandoeuvre Les Nancy, France 5.CNRS, F-54501 Vandoeuvre Les Nancy, France |
推荐引用方式 GB/T 7714 | Faure, M,Lin, W,Monie, P,et al. Exhumation tectonics of the ultrahigh-pressure metamorphic rocks in the Qinling orogen in east China: New petrological-structural-radiometric insights from the Shandong Peninsula[J]. TECTONICS,2003,22(3). |
APA | Faure, M.,Lin, W.,Monie, P.,Le Breton, N.,Poussineau, S.,...&Deloule, E.(2003).Exhumation tectonics of the ultrahigh-pressure metamorphic rocks in the Qinling orogen in east China: New petrological-structural-radiometric insights from the Shandong Peninsula.TECTONICS,22(3). |
MLA | Faure, M,et al."Exhumation tectonics of the ultrahigh-pressure metamorphic rocks in the Qinling orogen in east China: New petrological-structural-radiometric insights from the Shandong Peninsula".TECTONICS 22.3(2003). |
入库方式: OAI收割
来源:地质与地球物理研究所
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