期刊
TERRA NOVA
卷 21, 期 5, 页码 360-368出版社
WILEY
DOI: 10.1111/j.1365-3121.2009.00888.x
关键词
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资金
- National Natural Science Foundation of China [40634022]
- Chinese Academy of Sciences [KZCX1-YW-15-1]
- State Key Laboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Academy of Sciences, Beijing
The Early Palaeozoic Orogen of SE China consists of three litho-tectonic elements, from top to bottom: a sedimentary Upper Unit, a metamorphic Lower Unit and a gneissic basement. The boundaries between these units are flat lying, south directed, ductile decollements. The lower one is coeval with an amphibolite facies metamorphism (M1). The belt is reworked by migmatite-granite domes, high-temperature metamorphism (M2) and granitic plutons related to post-orogenic crustal melting. We date here the syn-M1 ductile shearing at 453 +/- 7 Ma by U-Th/Pb method on monazite. Previous ages and our new
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