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Xisheng Xu
Nanjing University
GeologyGeochemistryMagmaZirconPetrology
55Publications
24H-index
1,747Citations
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Publications 60
Newest
#1Yan Xia (NU: Nanjing University)H-Index: 9
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Abstract Triassic aluminous A-type granitoids, mostly peraluminous biotite granites, occur in various areas in the South China Block. Here, we focus biotite granites from three plutons and one granitic dike that provide new insights into the Triassic tectono-magmatic evolution of South China Block. The peraluminous biotite granites from Zhulanbu, Xiaotao and Wengshanplutons all emplaced at ca. 225 Ma and contain Fe-rich biotites. Their high FeOT/(FeOT+MgO) and Ga/Al ratios and HFSE contents impl...
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#1Wenjing Xu (SYSU: Sun Yat-sen University)
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Matthew J. Brzozowski (NU: Nanjing University)
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Understanding the mechanisms responsible for the interplay between mafic and felsic magmas is the key to retrieving information on their sources, and characterizing the exchange of mass between them. In order to characterize compositional and mineralogical changes in the mafic end-member during mafic-felsic magma interaction and to better understand the nature of early Paleozoic intracontinental magmatism in the South China Block (SCB), a detailed study was conducted on an early Paleozoic hornbl...
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#1Yan Xia (NU: Nanjing University)H-Index: 9
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
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#1Kai Zhao (NU: Nanjing University)H-Index: 2
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Saskia Erdmann (University of Orléans)H-Index: 11
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Abstract Understanding fractionation of silicic magma is crucial to advance our knowledge of differentiation of continental crust, enrichment of elements of economic interest, and plutonic–volcanic connection. Microstructural records afford critical appraisals for silicic magma fractionation, yet are rarely reported in granite plutons. Here we combine detailed microstructural observations and thermodynamic modeling to quantify the components and the conditions of silicic magma fractionation usin...
2 CitationsSource
#1Ding-Sheng Jiang (NU: Nanjing University)H-Index: 1
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Saskia Erdmann (University of Orléans)H-Index: 11
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Magma mixing commonly takes place between isotopically depleted mafic and enriched felsic magmas. Here we present isotopic evidence exhibiting the opposite behavior in the Early Cretaceous Siling complex (South China), which comprises gabbro, quartz diorite, granodiorite, and alkali feldspar granite with locally many mafic microgranular enclaves. Field observations and zircon U–Pb dating indicate that all of the rock units crystallized contemporaneously at ca 127–129 Ma. Mineralogical and petroc...
5 CitationsSource
#1Wenjing Xu (NU: Nanjing University)H-Index: 3
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Large granitoid complexes within the continental crust are believed to be closely linked to mantle-derived magmas based on field observations and isotopic studies. However, details on the contribution of mantle-derived magmas in the generation of felsic magmas deep in the lower to middle crust, especially the interaction between the mantle-derived mafic magmas and the generated felsic melts, are not well constrained by petrological and mineralogical studies. Here we present a detailed study of a...
3 CitationsSource
#1Wenjing Xu (NU: Nanjing University)H-Index: 3
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Gang Zeng (NU: Nanjing University)H-Index: 9
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Abstract Several recent studies have documented that the silicic rocks (SiO 2 > 65 wt.%) comprising Silicic Large Igneous Provinces are derived from partial melting of the crust facilitated by underplating/intraplating of “hidden” large igneous province-scale basaltic magmas. The early Paleozoic intracontinental magmatic rocks in the South China Block (SCB) are dominantly granitoids, which cover a combined area of ~ 22,000 km 2 . In contrast, exposures of mafic rocks total only ~ 45 km 2 . These...
7 CitationsSource
#1Kai Zhao (NU: Nanjing University)H-Index: 2
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Yan Xia (NU: Nanjing University)H-Index: 9
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3 CitationsSource
#1Xi-Song Zhang (NU: Nanjing University)H-Index: 1
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Lei Liu (Guilin University of Technology)H-Index: 8
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Abstract The early Paleozoic orogeny represents the first extensive Phanerozoic tectono-thermal event in the South China Block (SCB). Two distinct orogeny models, subduction–collision orogeny and intracontinental orogeny, have been proposed, and one of the key controversies is the nature and the tectonic implications of the associated early Paleozoic volcanic rocks in the SCB, which have not yet been systematically investigated. Zircon U-Pb dating results show that these volcanic rocks formed at...
12 CitationsSource
#1Kai Zhao (NU: Nanjing University)H-Index: 2
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Saskia Erdmann (NU: Nanjing University)H-Index: 11
view all 3 authors...
Most igneous charnockites are interpreted to have crystallized at hot and dry conditions, i.e. at >800 °C and <3 wt.% H2O and with an important CO2 component in the system. These charnockites are metaluminous to weakly peraluminous and their formation involves a significant mantle-derived component. This study, in contrast, investigates the crystallization conditions of strongly peraluminous, metasediment-sourced charnockites from the Qinzhou Bay Granitic Complex, South China. To constrain the t...
5 CitationsSource
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