IGGCAS OpenIR  > 岩石圈演化国家重点实验室
What Drives the Continental Crust To Be Extremely Hot So Quickly?
Huang, Guangyu1; Guo, Jinghui1; Jiao, Shujuan1; Palin, Richard2
2019-11-29
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
Pages14
AbstractThe widespread spatio-temporal occurrence of ultrahigh-temperature (UHT) metamorphism in continental crust has been widely documented, but the heat source responsible for generating these extreme conditions over a short period of time remains enigmatic. Here, garnet orthogneiss, spinel-bearing granulite, and gabbronorite from the east Khondalite belt, China, have been analyzed via integrated geochemistry, U-Pb zircon isotope geochronology, and phase equilibria modeling to shed light on the timing and nature of rapid UHT metamorphism in this area. Peak metamorphism is characterized in garnet orthogneiss by the assemblage garnet + orthopyroxene + plagioclase + K-feldspar + quartz, which is calculated to represent pressure-temperature conditions of 0.83-0.88 GPa at 930-990 degrees C. Zircon ages from this sample yield an igneous (protolith) emplacement age of approximately 1.93-1.95 Ga, which matches the timing of metamorphism in adjacent (pre-UHT) metapelites. These garnet orthogneiss were then metamorphosed to UHT conditions at approximately 1.92 Ga, coincident with emplacement of mantle-derived gabbronorites, as supported by REE patterns in zircon, and evidence for a rapid thermal pulse in the east Khondalite belt lower crust at that time. Heat-source and heat-transfer calculations indicate that advected heat from mafic magmas is the most likely cause of this regional-scale event, although ductile shearing might have contributed to a lesser degree.
Keywordultrahigh temperature rapid metamorphism heat source garnet orthogneiss phase equilibria modeling rare earth elements
DOI10.1029/2019JB017840
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS KeywordNORTH CHINA CRATON ; ULTRAHIGH-TEMPERATURE METAMORPHISM ; PRESSURE PELITIC GRANULITES ; S-TYPE GRANITES ; PB ZIRCON AGES ; LA-ICP-MS ; KHONDALITE BELT ; U-PB ; HELANSHAN COMPLEX ; OROGENIC BELTS
Language英语
Funding ProjectNational Natural Science Foundation of China[41890832] ; National Natural Science Foundation of China[41902057] ; China Postdoctoral Science Foundation[2019M650834]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000499318700001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95786
Collection岩石圈演化国家重点实验室
Corresponding AuthorHuang, Guangyu
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Colorado Sch Mines, Dept Geol & Geol Engn, Golden, CO 80401 USA
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Huang, Guangyu,Guo, Jinghui,Jiao, Shujuan,et al. What Drives the Continental Crust To Be Extremely Hot So Quickly?[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019:14.
APA Huang, Guangyu,Guo, Jinghui,Jiao, Shujuan,&Palin, Richard.(2019).What Drives the Continental Crust To Be Extremely Hot So Quickly?.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,14.
MLA Huang, Guangyu,et al."What Drives the Continental Crust To Be Extremely Hot So Quickly?".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH (2019):14.
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
[Huang, Guangyu]'s Articles
[Guo, Jinghui]'s Articles
[Jiao, Shujuan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Guangyu]'s Articles
[Guo, Jinghui]'s Articles
[Jiao, Shujuan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Guangyu]'s Articles
[Guo, Jinghui]'s Articles
[Jiao, Shujuan]'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.