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Genesis of Early Permian A-type granites in the middle of the Great Xing'an Range and constraints on tectonic evolution of the Zhalantun area
Zhang Chao1; Wu XinWei2; Liu YongJiang3; Zhang YuJin2; Chao Zhang2; Guo Wei2; Cui FangHua1
2020
Source PublicationACTA PETROLOGICA SINICA
ISSN1000-0569
Volume36Issue:4Pages:1091-1106
AbstractHegenshan-Heihe suture zone is an important boundary in Great Xing'an Range that is located at the eastern segment of Central Asian Orogenic Belt and it is also important for understanding the tectonic evolution of Central Asian Orogenic Belt. Due to lacking of the detailed proof on magmatism, tectonic structure and paleogeography, the tectonic evolution in the middle of Hegenshan-Heihe suture zone is still in debate. The magmatic events in Zhalantun area are an essential clue to study the tectonic evolution of the middle of the Hegenshan-Heihe suture zone. Thereby, this study presents the petrology, geochronology and geochemistry of Permian granites in Zhanlantun area, middle Great Xing'an Range, Northeast China, with the aim of discussing their petrogenesis and tectonic setting, and constraints on tectonic evolution of Hegenshan-Heihe suture. Permian granites are composed of alkali-feldspar granite and monzogranite with the emplacing ages of 289 similar to 298Ma. All the samples have the high SiO2, Al2O3 contents, and low P2O5, CaO, MgO contents and show the low FeO/MgO ratios and low Ba, Sr, Eu contents, showing the geochemical features of A-type granites. The low Sc, Ni, Co, V contents and ratios of Nb/Ta (4.88 similar to 21.9) and Zr/Hf (8.32 similar to 29.1) indicate that the magma of Permian granites is the mixing magma between mantle-derived magma and crustal melt. The Permian A2-type granites were emplaced in extensional setting, indicating that the amalgamation of the Xing'an and Songliao blocks had been finishing before Early Permian. Zhalantun area in middle of Hegenshan-Heihe Suture was in a post collision extensional setting after the amalgamation of the Xing'an and Songliao blocks.
KeywordNE CHINA IMPLICATIONS U-PB AGES INNER-MONGOLIA OROGENIC BELT AMALGAMATION HISTORY NORTHEASTERN CHINA WESTERN MARGIN VOLCANIC-ROCKS FELSIC ROCKS NORTH PART A-type granite Hegenshan-Heihe suture Songliao block Xing'an block Great Xing'an Range Zhalantun area
Indexed ByCSCD
Language英语
CSCD IDCSCD:6753109
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/151637
Collection中国科学院金属研究所
Affiliation1.山东大学
2.中国科学院金属研究所
3.黑龙江省环境保护科学研究院
4.中国科学院地质与地球物理研究所
Recommended Citation
GB/T 7714
Zhang Chao,Wu XinWei,Liu YongJiang,et al. Genesis of Early Permian A-type granites in the middle of the Great Xing'an Range and constraints on tectonic evolution of the Zhalantun area[J]. ACTA PETROLOGICA SINICA,2020,36(4):1091-1106.
APA Zhang Chao.,Wu XinWei.,Liu YongJiang.,Zhang YuJin.,Chao Zhang.,...&Cui FangHua.(2020).Genesis of Early Permian A-type granites in the middle of the Great Xing'an Range and constraints on tectonic evolution of the Zhalantun area.ACTA PETROLOGICA SINICA,36(4),1091-1106.
MLA Zhang Chao,et al."Genesis of Early Permian A-type granites in the middle of the Great Xing'an Range and constraints on tectonic evolution of the Zhalantun area".ACTA PETROLOGICA SINICA 36.4(2020):1091-1106.
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