Late Mesozoic magmatism and tectonic significance of the Kelihe Area in the northern Great Xing'an Range

2021 ◽  
Author(s):  
Nuo Zhang ◽  
Gang Li ◽  
Zheng‐Hong Liu ◽  
Yu‐Song Chen ◽  
Shi‐Jie Wang ◽  
...  
Keyword(s):  
Late Mesozoic ◽  
Tectonic Significance ◽  
Mesozoic Magmatism ◽  
Great Xing’An Range

Late Mesozoic magmatism at Xiaokelehe Cu Mo deposit in Great Xing'an Range, NE China: Geodynamic and metallogenic implications

Lithos ◽  
2020 ◽  
Vol 374-375 ◽  
pp. 105713
Author(s):  
Yuzhou Feng ◽  
Huayong Chen ◽  
Bing Xiao ◽  
Rucao Li ◽  
Changzhou Deng ◽  
...  
Keyword(s):  
Ne China ◽  
Late Mesozoic ◽  
Mesozoic Magmatism ◽  
Great Xing’An Range

scholarly journals Geochronology, Geochemistry, and Pb–Hf Isotopic Composition of Mineralization-Related Magmatic Rocks in the Erdaohezi Pb–Zn Polymetallic Deposit, Great Xing’an Range, Northeast China

Minerals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 274
Author(s):  
Zhitao Xu ◽  
Jinggui Sun ◽  
Xiaolong Liang ◽  
Zhikai Xu ◽  
Xiaolei Chu
Keyword(s):  
Lower Crust ◽  
Western Slope ◽  
Quartz Porphyry ◽  
Late Mesozoic ◽  
Hypabyssal Intrusions ◽  
Polymetallic Mineralization ◽  
Great Xing’An Range ◽  
Hf Isotopic Composition ◽  
Back Arc ◽  
T Values

Late Mesozoic intermediate–felsic volcanics and hypabyssal intrusions are common across the western slope of the Great Xing’an Range (GXAR). Spatiotemporally, these hypabyssal intrusions are closely associated with epithermal Pb–Zn polymetallic deposits. However, few studies have investigated the petrogenesis, contributions and constraints of these Pb–Zn polymetallic mineralization-related intrusions. Therefore, we examine the representative Erdaohezi deposit and show that these mineralization-related hypabyssal intrusions are composed of quartz porphyry and andesite porphyry with concordant zircon U–Pb ages of 160.3 ± 1.4 Ma and 133.9 ± 0.9 Ma, respectively. These intrusions are peraluminous and high-K calc-alkaline or shoshonitic with high Na2O + K2O contents, enrichment in large ion lithophile elements (LILEs; e.g., Rb, Th, and U), and depletion in high field strength elements (HFSEs; e.g., Nb, Ta, Zr, and Hf), similar to continental arc intrusions. The zircon εHf(t) values range from 3.1 to 8.0, and the 176Hf/177Hf values range from 0.282780 to 0.282886, with Hf-based Mesoproterozoic TDM2 ages. No differences exist in the Pb isotope ratios among the quartz porphyry, andesite porphyry and ore body sulfide minerals. Detailed elemental and isotopic data imply that the quartz porphyry originated from a mixture of lower crust and newly underplated basaltic crust, while the andesite porphyry formed from the partial melting of Mesoproterozoic lower crust with the minor input of mantle materials. Furthermore, a magmatic–hydrothermal origin is favored for the Pb–Zn polymetallic mineralization in the Erdaohezi deposit. Integrating new and published tectonic evolution data, we suggest that the polymetallic mineralization-related magmatism in the Erdaohezi deposit occurred in a back-arc extensional environment at ~133 Ma in response to the rollback of the Paleo-Pacific Plate.

Nature and significance of the late Mesozoic granitoids in the southern Great Xing’an range, eastern Central Asian Orogenic Belt

2018 ◽  
Vol 61 (5) ◽  
pp. 584-606 ◽  
Author(s):  
Le Wan ◽  
Chengdong Lu ◽  
Zuoxun Zeng ◽  
Adil S Mohammed ◽  
Zhenghong Liu ◽  
...  
Keyword(s):  
Orogenic Belt ◽  
Central Asian Orogenic Belt ◽  
Late Mesozoic ◽  
Central Asian ◽  
Mesozoic Granitoids ◽  
Great Xing’An Range

Upper mantle velocity structure beneath the eastern South China Block and implications for late Mesozoic magmatism

2021 ◽  
pp. 105013
Author(s):  
Yao Xu ◽  
Qingtian Lü ◽  
Danian Shi ◽  
Yongqian Zhang ◽  
Jiayong Yan ◽  
...  
Keyword(s):  
South China ◽  
Upper Mantle ◽  
Velocity Structure ◽  
South China Block ◽  
Late Mesozoic ◽  
Mesozoic Magmatism ◽  
Mantle Velocity

Geochronology and geochemistry of late Mesozoic volcanic rocks in the Wenkutu area, Great Xing'an Range, China

2018 ◽  
Vol 54 (3) ◽  
pp. 1343-1360 ◽  
Author(s):  
Sheng Lu ◽  
Ke‐Yong Wang ◽  
Huan‐Li Zhao ◽  
Chang‐Zhou Deng
Keyword(s):  
Volcanic Rocks ◽  
Late Mesozoic ◽  
Great Xing’An Range
Sign in / Sign up

Export Citation Format

Share Document