中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Multistage metamorphism of the Huangtuling granulite, Northern Dabie Orogen, eastern China: implications for the tectonometamorphic evolution of subducted lower continental crust

文献类型:期刊论文

作者Chen, Y.; Ye, K.; Liu, J. -B.; Sun, M.
刊名JOURNAL OF METAMORPHIC GEOLOGY
出版日期2006-09-01
卷号24期号:7页码:633-654
关键词Dabie Orogen granulite multistage metamorphism subducted lower continental crust
ISSN号0263-4929
DOI10.1111/j.1525-1314.2006.00659.x
文献子类Review
英文摘要Granulites from Huangtuling in the North Dabie metamorphic core complex in eastern China preserve rare mineralogical and mineral chemical evidence for multistage metamorphism related to Palaeoproterozoic metamorphic processes, Triassic continental subduction-collision and Cretaceous collapse of the Dabie Orogen. Six stages of metamorphism are resolved, based on detailed mineralogical and petrological studies: (I) amphibolite facies (6.3-7.0 kbar, 520-550 degrees C); (II) high-pressure/high-temperature granulite facies (12-15.5 kbar, 920-980 degrees C); (III) cooling and decompression (4.8-6.0 kbar, 630-700 degrees C); (IV) medium-pressure granulite facies (7.7-9.0 kbar, 690-790 degrees C); (V) low-pressure/high-temperature granulite facies (4.0-4.7 kbar, 860-920 degrees C); (VI) retrograde greenschist facies overprint (1-2 kbar, 340-370 degrees C). The P-T history derived in this study and existing geochronological data indicate that the Huangtuling granulite records two cycles of orogenic crustal thickening events. The earlier three stages of metamorphism define a clockwise P-T path, implying crustal thickening and thinning events, possibly related to the assembly and breakup of the Columbia Supercontinent at c. 2000 Ma. Stage IV metamorphism indicates another crustal thickening event, which is attributed to Triassic subduction/collision between the Yangtze and Sino-Korean Cratons. The dry lower crustal granulite persisted metastably during the Triassic subduction/collision because of the lack of hydrous fluid and deformation. Stage V metamorphism records the Cretaceous collapse of the Dabie Orogen, possibly due to asthenosphere upwelling or removal of the lithospheric mantle resulting in heating of the granulite and partial melting of the North Dabie metamorphic core complex. Comparison of the Huangtuling granulite in North Dabie and the high-pressure-ultrahigh-pressure metamorphic rocks in South Dabie indicates that the subducted upper (South Dabie) and lower (North Dabie) continental crusts underwent contrasting tectonometamorphic evolution during continental subduction-collision and orogenic collapse.
WOS关键词ULTRAHIGH-PRESSURE METAMORPHISM ; PB ISOTOPIC COMPOSITIONS ; BENEATH SOUTHERN TIBET ; CORE COMPLEX-FORMATION ; TRANS-HUDSON OROGEN ; MESOPROTEROZOIC SUPERCONTINENT ; DEEP SUBDUCTION ; WESTERN NORWAY ; ORTHO-PYROXENE ; SULU TERRANE
WOS研究方向Geology
语种英语
WOS记录号WOS:000240028700007
出版者BLACKWELL PUBLISHING
源URL[http://ir.iggcas.ac.cn/handle/132A11/66242]  
专题中国科学院地质与地球物理研究所
通讯作者Chen, Y.
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China
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Chen, Y.,Ye, K.,Liu, J. -B.,et al. Multistage metamorphism of the Huangtuling granulite, Northern Dabie Orogen, eastern China: implications for the tectonometamorphic evolution of subducted lower continental crust[J]. JOURNAL OF METAMORPHIC GEOLOGY,2006,24(7):633-654.
APA Chen, Y.,Ye, K.,Liu, J. -B.,&Sun, M..(2006).Multistage metamorphism of the Huangtuling granulite, Northern Dabie Orogen, eastern China: implications for the tectonometamorphic evolution of subducted lower continental crust.JOURNAL OF METAMORPHIC GEOLOGY,24(7),633-654.
MLA Chen, Y.,et al."Multistage metamorphism of the Huangtuling granulite, Northern Dabie Orogen, eastern China: implications for the tectonometamorphic evolution of subducted lower continental crust".JOURNAL OF METAMORPHIC GEOLOGY 24.7(2006):633-654.

入库方式: OAI收割

来源:地质与地球物理研究所

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