IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Paleoproterozoic ultrahigh-temperature metamorphism in the Alxa Block, the Khondalite Belt, North China Craton: Petrology and phase equilibria of quartz-absent corundum-bearing pelitic granulites
Zou, Lei1,2,3,4; Jing-Hui Guo1,2,3; Shu-Juan Jiao1,3; Guang-Yu Huang1,3; Zhong-Hua Tian4; Ping-Hua Liu4
2022-03-25
Source PublicationJOURNAL OF METAMORPHIC GEOLOGY
ISSN0263-4929
Pages29
AbstractAn Al-rich, quartz-absent corundum-bearing pelitic granulite is reported for the first time at the Diebusige complex in the Alxa Block in the western part of the Khondalite Belt (KB), North China Craton (NCC). A detailed petrographic study shows that a quartz-present domain occurs in porphyroblastic garnet cores from the corundum-bearing pelitic granulite, with a prograde metamorphic mineral assemblage (M-1) of garnet + plagioclase + quartz + biotite + spinel + rutile +/- melt, and a quartz-absent domain occurs in the matrix of this rock, with a preserved peak mineral assemblage (M-2) of garnet + corundum + spinel + biotite + plagioclase + K-feldspar + rutile + melt and a retrograde metamorphic mineral assemblage (M-3) of garnet + sillimanite + corundum + biotite + plagioclase + K-feldspar +/- rutile. Phase equilibrium modelling and Zr-in-rutile and ternary feldspar thermometry all reveal similar peak conditions of 890-940 degrees C at 7.5-9.8 kbar, which indicate a high geothermal gradient of similar to 110 degrees C/kbar and ultrahigh-temperature (UHT) conditions. Combining this information with the detailed analysis of metamorphic zircons, we obtain the metamorphic evolution of the corundum-bearing pelitic granulite. Specifically, the corundum-bearing pelitic granulite experienced granulite-facies metamorphism at similar to 1950 Ma. Then, this rock was slowly uplifted with heating and partial melting until it achieved UHT conditions. Finally, it cooled to the solidus at similar to 1830 Ma. Thus, we propose that the UHT metamorphic conditions of a corundum-bearing pelitic granulite from the Diebusige complex of the Alxa Block may be the result of long-term slow uplift with heating under a high geothermal gradient.
KeywordAlxa block corundum phase equilibrium modelling quartz-absent ultrahigh-temperature metamorphism
DOI10.1111/jmg.12661
Funding OrganizationGeological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordU-PB GEOCHRONOLOGY ; CENTRAL MAINE TERRANE ; RARE-EARTH-ELEMENTS ; HIGH-PRESSURE ; PLUS QUARTZ ; METAPELITIC GRANULITES ; HELANSHAN COMPLEX ; WESTERN BLOCK ; TECTONOTHERMAL EVENTS ; FELDSPAR THERMOMETRY
Language英语
Funding ProjectGeological Investigation Project of the China Geological Survey[DD20190370] ; Geological Investigation Project of the China Geological Survey[DD20190003] ; Geological Investigation Project of the China Geological Survey[DD20221649] ; National Natural Science Foundation of China[41672191] ; National Natural Science Foundation of China[41890832] ; National Natural Science Foundation of China[41972205]
Funding OrganizationGeological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000772913000001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105037
Collection岩石圈演化国家重点实验室
Corresponding AuthorPing-Hua Liu
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.Chinese Acad Geol Sci, Inst Geol, 26 Baiwanzhuang Rd, Beijing 100037, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zou, Lei,Jing-Hui Guo,Shu-Juan Jiao,et al. Paleoproterozoic ultrahigh-temperature metamorphism in the Alxa Block, the Khondalite Belt, North China Craton: Petrology and phase equilibria of quartz-absent corundum-bearing pelitic granulites[J]. JOURNAL OF METAMORPHIC GEOLOGY,2022:29.
APA Zou, Lei,Jing-Hui Guo,Shu-Juan Jiao,Guang-Yu Huang,Zhong-Hua Tian,&Ping-Hua Liu.(2022).Paleoproterozoic ultrahigh-temperature metamorphism in the Alxa Block, the Khondalite Belt, North China Craton: Petrology and phase equilibria of quartz-absent corundum-bearing pelitic granulites.JOURNAL OF METAMORPHIC GEOLOGY,29.
MLA Zou, Lei,et al."Paleoproterozoic ultrahigh-temperature metamorphism in the Alxa Block, the Khondalite Belt, North China Craton: Petrology and phase equilibria of quartz-absent corundum-bearing pelitic granulites".JOURNAL OF METAMORPHIC GEOLOGY (2022):29.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zou, Lei]'s Articles
[Jing-Hui Guo]'s Articles
[Shu-Juan Jiao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zou, Lei]'s Articles
[Jing-Hui Guo]'s Articles
[Shu-Juan Jiao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zou, Lei]'s Articles
[Jing-Hui Guo]'s Articles
[Shu-Juan Jiao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.