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Generation of Cretaceous high-silica granite by complementary crystal accumulation and silicic melt extraction in the coastal region of southeastern China
Jing-Yuan Chen1,2; Jin-Hui Yang2,3; Ji-Heng Zhang3; Jin-Feng Sun3; Yu-Sheng Zhu2; Hartung, Eva4
2022
Source PublicationGEOLOGICAL SOCIETY OF AMERICA BULLETIN
ISSN0016-7606
Volume134Issue:1-2Pages:201-222
AbstractIt is generally hypothesized that high silica (SiO2 > 75 wt%) granite (HSG) originates from crystal fractionation in the shallow crust. Yet, identifying the complementary cumulate residue of HSG within plutons remains difficult. In this work, we examine the genetic links between the porphyritic monzogranite and HSG (including porphyritic granite, monzogranite, and alkali feldspar granite) from the coastal area of southeastern China using detailed zircon U-Pb ages, trace elements, Hf-O isotopes, and whole-rock geochemistry and Nd-Hf isotopic compositions. Zircon U-Pb ages indicate that the porphyritic monzogranite and HSG are coeval (ca. 96-99 Ma). The HSG and porphyritic monzogranite have similar formation ages within analytic error, identical mineral assemblages, similar Nd-Hf isotopic compositions, and consistent variations in their zircon compositions (i.e., Eu/Eu*, Zr/Hf, and Sm/Yb), which suggests that their parental magma came from a common silicic magma reservoir and that the lithological differences are the result of melt extraction processes. The porphyritic monzogranite has relatively high SiO2 (70.0-73.4 wt%), Ba (718-1070 ppm), and Sr (493-657 ppm) contents, low K2O and Rb concentrations and low Rb/Sr ratios (0.1-0.2), and it displays weak Eu anomalies (Eu/Eu* = 0.57-0.90). Together with the petrographic features of the porphyritic monzogranite, these geochemical variations indicate that the porphyritic monzongranite is the residual silicic cumulate of the crystal mush column. The HSG (SiO2 = 75.0-78.4) has variable Rb/Sr ratios (2-490) and very low Sr (1-109 ppm) and Ba (9-323 ppm) contents. Zircon from the HSG and porphyritic monzogranite overlap in Eu/Eu*, Zr/Hf, and Sm/Yb ratios and Hf contents; however, some zircon from the HSG show very low Eu/Eu* (<0.1) and Zr/Hf ratios. These features suggest that the HSG represents the high-silica melt that was extracted from a crystal-rich mush. The injection of mantle-derived hotter mafic magma into the mush column and the exsolution of F/Cl--enriched volatiles (or fluids) from the interstitial melt rejuvenated the pre-existing highly crystalline mush. Subsequent extraction and upward migration of silicic melt resulting from compaction of the mush column formed the HSG at shallow crustal levels, which left the complementary crystal residue solidified as porphyritic monzogranite at the bottom.
DOI10.1130/B35745.1
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 ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University
WOS KeywordA-TYPE GRANITES ; ZIRCON U-PB ; SE CHINA ; SOUTH CHINA ; GEOCHEMICAL CONSTRAINTS ; ISOTOPIC COMPOSITIONS ; MAGMATIC PROCESSES ; CONTINENTAL-CRUST ; ZHEJIANG PROVINCE ; CATHAYSIA BLOCK
Language英语
Funding ProjectNational Natural Science Foundation of China[42073033] ; Chinese Ministry of Science and Technology[2012CB416702] ; Fundamental Research Funds for the Central Universities, Chang'an University
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 ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University ; Fundamental Research Funds for the Central Universities, Chang'an University
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000740439000004
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/103982
Collection岩石圈演化国家重点实验室
Corresponding AuthorJing-Yuan Chen
Affiliation1.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 3GP, Merseyside, England
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
Jing-Yuan Chen,Jin-Hui Yang,Ji-Heng Zhang,et al. Generation of Cretaceous high-silica granite by complementary crystal accumulation and silicic melt extraction in the coastal region of southeastern China[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2022,134(1-2):201-222.
APA Jing-Yuan Chen,Jin-Hui Yang,Ji-Heng Zhang,Jin-Feng Sun,Yu-Sheng Zhu,&Hartung, Eva.(2022).Generation of Cretaceous high-silica granite by complementary crystal accumulation and silicic melt extraction in the coastal region of southeastern China.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,134(1-2),201-222.
MLA Jing-Yuan Chen,et al."Generation of Cretaceous high-silica granite by complementary crystal accumulation and silicic melt extraction in the coastal region of southeastern China".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 134.1-2(2022):201-222.
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