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Amphibolite facies metamorphism and geochronology of the Paleoproterozoic Aketashitage Orogenic Belt, northwestern China
Zhang, Qian W. L.1; Liu, Jia-Hui1; Wang, Hao Y. C.2; Shi, Meng-Yan1; Chen, Yi-Chao1; Li, Zhen M. G.1; Zhang, Hui C. G.1; Pham, Van-Tho1; Wu, Chun-Ming1
2019-07-15
Source PublicationPRECAMBRIAN RESEARCH
ISSN0301-9268
Volume328Pages:146-160
AbstractGarnet amphibolite and semi-pelitic gneiss preserving three stages of metamorphic mineral assemblages, i.e., the prograde metamorphic inclusion assemblage (M1) preserved in the garnet porphyroblast, metamorphic peak assemblage (M2) and retrograde symplectic assemblage (M3), have been recognized in the Aketashitage area, northwestern China. Geothermobarometric computation shows that the M1, M2 and M3 assemblages record the metamorphic P-T conditions of 600-700 degrees C/4.2-5.3 kbar, 730-790 degrees C/6.3-7.1 kbar, and 770 degrees C/5.6 kbar, respectively. These three metamorphic stages define clockwise P-T paths including nearly isothermal decompression (ITD) process, indicating typical orogenic metamorphism. The peak metamorphic P-T conditions reach the transition zone between the high amphibolite fades and granulite facies, and belong to intermediate P/T facies series. The SHRIMP and LA-ICP-MS U-Pb dating of metamorphic zircon implies that the subduction might occur as early as similar to 1.97 Ga and last as late as 1.84 Ga. Combined with literature data, it is concluded that the Aketashitage area was a Paleoproterozoic orogenic belt, which is possibly related to the assembly of the basements of the Columbia supercontinent.
KeywordThe Aketashitage Orogenic Belt Paleoproterozoic Metamorphic evolution Geochronology
DOI10.1016/j.precamres.2019.04.019
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences
WOS KeywordZIRCON U-PB ; TEMPERATURE-TIME PATHS ; NORTHERN ALTYN-TAGH ; SUBDUCTION-RELATED MAGMATISM ; HF ISOTOPIC CHARACTERISTICS ; ARCHEAN CONTINENTAL-CRUST ; NORTHEASTERN TARIM CRATON ; HIGH-GRADE METAMORPHISM ; T-T PATHS ; DUNHUANG BLOCK
Language英语
Funding ProjectNational Natural Science Foundation of China[41730215] ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences[QYZDJ-SSW-DQC036]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences ; Key Research Program of Frontier Sciences from Chinese Academy of Sciences
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000470941100010
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/92547
Collection岩石圈演化国家重点实验室
Corresponding AuthorWu, Chun-Ming
Affiliation1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, POB 4588, Beijing 100049, Peoples R China
2.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, POB 9825, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Qian W. L.,Liu, Jia-Hui,Wang, Hao Y. C.,et al. Amphibolite facies metamorphism and geochronology of the Paleoproterozoic Aketashitage Orogenic Belt, northwestern China[J]. PRECAMBRIAN RESEARCH,2019,328:146-160.
APA Zhang, Qian W. L..,Liu, Jia-Hui.,Wang, Hao Y. C..,Shi, Meng-Yan.,Chen, Yi-Chao.,...&Wu, Chun-Ming.(2019).Amphibolite facies metamorphism and geochronology of the Paleoproterozoic Aketashitage Orogenic Belt, northwestern China.PRECAMBRIAN RESEARCH,328,146-160.
MLA Zhang, Qian W. L.,et al."Amphibolite facies metamorphism and geochronology of the Paleoproterozoic Aketashitage Orogenic Belt, northwestern China".PRECAMBRIAN RESEARCH 328(2019):146-160.
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