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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
An early high-pressure history preceeded pelitic ultrahigh-temperature granulite formation in the Tuguiwula area, Khondalite Belt, North China Craton

文献类型：期刊论文

作者Liu, Hao1,2,3,4; Li, Xu-Ping4,5; Kong, Fan-Mei4; Schertl, Hans-Peter5; Ma, Shao-Ting4; Wang, Xiao-Man4
刊名PRECAMBRIAN RESEARCH
出版日期2021-06-01
卷号357页码:14
关键词High-pressure and ultra-high temperature metamorphism Pelitic granulite Metamorphic evolution Khondalite belt North China Craton
ISSN号0301-9268
DOI10.1016/j.precamres.2021.106123
英文摘要Following the first petrological studies on UHT metamorphic pelitic granulite of the Tuguiwula area, Jining complex, North China Craton, considerable work has been done in the past decades that revealed an anticlockwise P-T path, reaching a maximum pressure range at ca.10 kbar. In this study, we re-investigated pelitic granulite from this locality and determined four distinct metamorphic stages, P-max (M2), T-max (M3), cooling (M4), and decompression (M5), which document a clockwise P-T trajectory, providing evidence for an early high-pressure metamorphic scenario at pressures >11.8 kbar. The P-max (M2) conditions were calculated using garnet domains with highest X-Ca (grt) isopleths, which contain inclusions of kyanite. The entire mineral assemblage in equilibrium is Grt + Ky + Qz + Rt + Kfs + liq +/- Ilm, suggesting minimum pressures of 11.8 kbar. The T-max metamorphism (M3) is characterized by the assemblage Grt + Qz + Pl + Ilm + Kfs + Sil + liq. Geothermobarometrical studies which include two-feldspar geothermometry and Zr-in-rutile thermometry yields a P-T range of 990 degrees C-995 degrees C and 9-10 kbar, indicating an ultra-high temperature (UHT) metamorphic overprint. The subsequent retrograde metamorphic stages M4 and M5 are characterized by the formation of Bt + Sil + Qz + symplectites and cordierite replacing garnet rims, suggesting P-T conditions of 840 degrees C-960 degrees C/8.5-9.5 kbar and 800 degrees C-850 degrees C/5.5-6.8 kbar, respectively. SHRIMP U-Pb age dating provided a weighted mean Pb-207/Pb-206 age of 1911.6 +/- 4.5 Ma that represents the timing of the UHT metamorphic stage. The current study on pelitic granulite documents two novel results which have a significant impact on the geotectonic evolution: (1) a clockwise P-T path instead of an anticlockwise one was derived, and (2) P-T estimates are much higher than those reported from previous studies of both, pressure and temperature. The available P-T data of the pre-HP metamorphic stage together with the clockwise P-T trajectory, UHT-, cooling- and decompression-stages of the current study reflect a possible collision or subduction origin.
WOS关键词ZIRCON U-PB ; MONGOLIA SUTURE ZONE ; INNER-MONGOLIA ; PHASE-EQUILIBRIA ; HUAIAN COMPLEX ; PALEOPROTEROZOIC GRANULITES ; METAMORPHIC CONDITIONS ; FELDSPAR THERMOMETRY ; CRUSTAL METAMORPHISM ; FACIES METAMORPHISM
资助项目NSFC/NRF Research Cooperation Program[41761144061] ; NSFSD[ZR2016DM04] ; SDUST Research Fund[2015TDJH101]
WOS研究方向Geology
语种英语
WOS记录号WOS:000652097000006
出版者ELSEVIER
资助机构NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFSD ; NSFSD ; NSFSD ; NSFSD ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFSD ; NSFSD ; NSFSD ; NSFSD ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFSD ; NSFSD ; NSFSD ; NSFSD ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFC/NRF Research Cooperation Program ; NSFSD ; NSFSD ; NSFSD ; NSFSD ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund ; SDUST Research Fund
源URL[http://ir.iggcas.ac.cn/handle/132A11/101216]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Xu-Ping
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Shandong Univ Sci & Technol, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao 266590, Peoples R China
5.Ruhr Univ Bochum, Fac Geosci, Inst Geol Mineral & Geophys, D-44780 Bochum, Germany
推荐引用方式
GB/T 7714		 Liu, Hao,Li, Xu-Ping,Kong, Fan-Mei,et al. An early high-pressure history preceeded pelitic ultrahigh-temperature granulite formation in the Tuguiwula area, Khondalite Belt, North China Craton[J]. PRECAMBRIAN RESEARCH,2021,357:14.
APA Liu, Hao,Li, Xu-Ping,Kong, Fan-Mei,Schertl, Hans-Peter,Ma, Shao-Ting,&Wang, Xiao-Man.(2021).An early high-pressure history preceeded pelitic ultrahigh-temperature granulite formation in the Tuguiwula area, Khondalite Belt, North China Craton.PRECAMBRIAN RESEARCH,357,14.
MLA Liu, Hao,et al."An early high-pressure history preceeded pelitic ultrahigh-temperature granulite formation in the Tuguiwula area, Khondalite Belt, North China Craton".PRECAMBRIAN RESEARCH 357(2021):14.

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来源：地质与地球物理研究所

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