Neoproterozoic and Early Paleozoic magmatic records from the Chalukou ore district, northern Great Xing’an Range, NE China: Implications for tectonic evolution and Mesozoic Mo mineralization
作者： Zhen-Zhen Li , Ke-Zhang Qin , Guang-Ming Li , Lu-Ying Jin , Guo-Xue Song
DOI: 10.1016/J.JSEAES.2018.06.020
关键词:
摘要: Abstract To constrain the pre-mineralization tectonic evolutionary history and nature of magma source Chalukou Mo deposit, which is located on western margin Xing’an block, we recognized studied a period Neoproterozoic magmatism suite Early Paleozoic volcanic rocks in this ore district. The magmatic zircons quartz chlorite schist collected from Wolegen Group yielded concordant 206Pb/238U age 685.1 ± 4.5 Ma (MSWD = 0.21), they show very high eHf(t) values (+15.5 to +17.3) young Hf modal ages (573–664 Ma) close formation age, indicating that protolith was generated during Neoproterozoic, most likely derived depleted mantle region. This might represent an important crustal growth event within Block. host wallrocks deposit mainly consist rhyolite, dacite, andesite tuff have undergone slight deformation metamorphism. results zircon LA-ICP-MS U-Pb dating indicated were 472–475 Ma. whole-rock geochemical analysis indicate arc-affinity features characterized by LREE enrichment with moderate strong fractionation between HREE (LaN/YbN = 7.7–13.6), intense negative Eu anomalies (δEu = 0.36–0.71), pronounced positive Ba, Th, U, Pb La Nb-Ta, P Ti anomalies. isotopes various eHf (t) ranging −2.0 +5.9 slightly old two-stage model 1070 Ma 1573 Ma. Combined discrimination diagrams, these data partial melting older lower crust addition juvenile component active continental setting related subduction Paleo-Asian Ocean Songliao blocks. existence activity Mesoproterozoic materials obtained district demonstrated Precambrian basement exists Block, but its distribution area may be limited. As largest porphyry China, ore-forming multiple sources, considering long-term events occurred under different settings previous modification refertilization and/or lithospheric generation fertile crust, direct ore-related porphyries.
sci-hub.se 参考文章(88)
Jie Tang, Wen-Liang Xu, Feng Wang, Shuo Zhao, Yu Li, Geochronology, geochemistry, and deformation history of Late Jurassic-Early Cretaceous intrusive rocks in the Erguna Massif, NE China: Constraints on the late Mesozoic tectonic evolution of the Mongol-Okhotsk orogenic belt Tectonophysics. ,vol. 658, pp. 91- 110 ,(2015) , 10.1016/J.TECTO.2015.07.012
William V. Boynton, Cosmochemistry of the rare earth elements: meteorite studies. Developments in Geochemistry. ,vol. 2, pp. 63- 114 ,(1984) , 10.1016/B978-0-444-42148-7.50008-3
Suofei Xiong, Mouchun He, Shuzhen Yao, Yubao Cui, Guanzhong Shi, Zhenju Ding, Xinlu Hu, Fluid evolution of the Chalukou giant Mo deposit in the northern Great Xing'an Range, NE China Geological Journal. ,vol. 50, pp. 720- 738 ,(2015) , 10.1002/GJ.2588
Yu Dong, Wenchun Ge, Guochun Zhao, Hao Yang, Xiwen Liu, Yanlong Zhang, Petrogenesis and tectonic setting of the Late Paleozoic Xing’an complex in the northern Great Xing’an Range, NE China: Constraints from geochronology, geochemistry and zircon Hf isotopes Journal of Asian Earth Sciences. ,vol. 115, pp. 228- 246 ,(2016) , 10.1016/J.JSEAES.2015.09.031
Daohan Zhang, Junhao Wei, Lebing Fu, Huayong Chen, Jun Tan, Yanjun Li, Wenjie Shi, Ning Tian, Formation of the Jurassic Changboshan-Xieniqishan highly fractionated I-type granites, northeastern China: implication for the partial melting of juvenile crust induced by asthenospheric mantle upwelling Geological Journal. ,vol. 50, pp. 122- 138 ,(2015) , 10.1002/GJ.2531
Lian-chang Zhang, Xin-hua Zhou, Ji-feng Ying, Fei Wang, Feng Guo, Bo Wan, Zhi-guang Chen, Geochemistry and Sr-Nd-Pb-Hf isotopes of Early Cretaceous basalts from the Great Xinggan Range, NE China: Implications for their origin and mantle source characteristics Chemical Geology. ,vol. 256, pp. 12- 23 ,(2008) , 10.1016/J.CHEMGEO.2008.07.004
Zhen-Zhen Li, Ke-Zhang Qin, Guang-Ming Li, Shunso Ishihara, Lu-Ying Jin, Guo-Xue Song, Zhao-Jun Meng, Formation of the giant Chalukou porphyry Mo deposit in northern Great Xing'an Range, NE China: Partial melting of the juvenile lower crust in intra-plate extensional environment Lithos. ,vol. 202, pp. 138- 156 ,(2014) , 10.1016/J.LITHOS.2014.04.018
Fu-Yuan Wu, De-You Sun, Wen-Chun Ge, Yan-Bin Zhang, Matthew L Grant, Simon A Wilde, Bor-Ming Jahn, None, Geochronology of the Phanerozoic granitoids in northeastern China Journal of Asian Earth Sciences. ,vol. 41, pp. 1- 30 ,(2011) , 10.1016/J.JSEAES.2010.11.014
Lu Shi, Changqing Zheng, Wengui Yao, Juan Li, Fanghua Cui, Feng Gao, Yuan Gao, Jiulei Xu, Xiaomeng Han, None, Geochronological framework and tectonic setting of the granitic magmatism in the Chaihe–Moguqi region, central Great Xing’an Range, China Journal of Asian Earth Sciences. ,vol. 113, pp. 443- 453 ,(2015) , 10.1016/J.JSEAES.2014.12.013
Pan Zhao, Junqin Fang, Bei Xu, Yan Chen, Michel Faure, Early Paleozoic tectonic evolution of the Xing-Meng Orogenic Belt: Constraints from detrital zircon geochronology of western Erguna–Xing’an Block, North China Journal of Asian Earth Sciences. ,vol. 95, pp. 136- 146 ,(2014) , 10.1016/J.JSEAES.2014.04.011