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Name: Ji-Feng XU许继峰)
Position: Professor
Department: State Key Laboratory of isotopic Geochemistry
Email:
jifengxu@gig.ac.cn 

Research

(a) magmatic –tectonic evolution in the Tibetan Plateau
(b) adakitic rocks and porphyry Cu-Mo-Au deposits
(c) Re-Os isotopic geochemistry 

(1) Key project of National Natural Science Foundation of China: Tracing orogenic processes by investigating Os-Nd-Pb-Sr isotopic compositions and variation of Cenozoic mantle-derived igneous rocks in the Tibetan Plateau (project number: 40930316)
(2) CAS key project: metallization of subducting-type and collisiona-type porphyry deposits in the central-southern Tibetan plateau (project number: KZCX2-YW-Q04-2)
(3) National 973 project: porphyry Cu-Mo-Au mineralization during subduction/collision processes (project number: 2009CB421004)


Research:

Recent Publications:
1. Jian-Lin Chen, Ji-Feng Xu*, Wen-Xia Zhao, Yan-Hui Dong, Bao-Di Wang, Zhi-Qiang Kang, 2011, Geochemical variations in Miocene adakitic rocks from the western and eastern Lhasa terrane: Implications for lower crustal flow beneath the Southern Tibetan Plateau, Lithos, 125: 928–939. (* Corresponding author)
2. Jian-lin Chen, Ji-Feng Xu* , Bao-di Wang , Zhi-qiang Kang, Li Jie,2010, Origin of Cenozoic alkaline potassic volcanic rocks at KonglongXiang, Lhasa terrane, Tibetan Plateau: Products of partial melting of a mafic lower-crustal source? Chemical Geology, 273: 286–299. (* Corresponding author)
3. Jie Li, Ji-Feng Xu *, Katsuhiko Suzuki, Bin He, Yi-Gang Xu, Zhong-Yuan Ren, 2010, Os, Nd and Sr isotope and trace element geochemistry of the Muli picrites: Insights into the mantle source of the Emeishan Large Igneous Province. Lithos: 119: 108-122. (* Corresponding author)
4. Jie Li, Xi-Rong Liang, Ji-Feng Xu *, Katsuhiko Suzuki , Yan-Hui Dong, 2010, Simplified technique for the measurements of Re–Os isotope by multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS), Geochemical Journal, 44: 73-80. (* Corresponding author)
5. Xu Ji-feng, Ben-ren Zhang Yin-wen Han, 2008, Geochemistry of the Mian-Lue ophiolites in the Qinling Mountain, Central China: constraints on the evolution of the Qinling orogenic belt and collision of the North and South China Cratons. Journal of Asian Earth Sciences, 32,336–347.
6. Wang, SQ; Xu, JF*,Liu, XJ, et al., 2008, Geochemistry of the Chaokeshan ophiolite: Product of intra-oceanic back-arc basin? ACTA PETROLOGICA SINICA, 24(12), 2869-2879. (*corresponding author)
7. Wang Q., Wyman A., Xu J.F., Wan Y.S., et al. 2008,Triassic Nb-enriched basalts, magnesian andesites, and adakites of the Qiangtang terrane (Central Tibet): evidence for metasomatism by slab-derived melts in the mantle wedge. Contrib Mineral Petrol.,155:473–490.
8. Dong Y H, Wang Q, Xu, J F*, Zi F. 2008. Dongyue Lake adakitic volcanic rocks with high Mg# in north Qiangtang block: Petrogenesis and its tectonic implication. Acta Petrologica Sinica, 24:291-302.(*corresponding author).
9. Chen J L, Xu, J F*, Kang Z Q, Wang B D.2008. Geochemical comparison of the Cenozoic high-MgO-potassic volcanic rocks between northern and southern of Tibetan Plateau: difference of the both mantle sources. Acta Petrologica Sinica, 24: 211-224. (*corresponding author).
10. Wang B D Xu, J F*, et al. 2008. Petrogenesis of Miocene volcanic rocks in the Sailipu area, Western Tibetan Plateau: Geochemical and Sr-Nd isotopic constraints. Acta Petrologica Sinica,24:265-278.(*corresponding author).
11. Kang Z Q, Xu, J F*, et al.,2008. Cretaceous volcanic rocks of Zenong Group in north-middle Lhasa block: products of southward subducting of the Slainajap Ocean? Acta Petrologica Sinica, 24:303-314.(*corresponding author)
12. Li J, Xu, JF*, He B, et al.,2008. Sr-Nd- Os isotope geochemistry of Permain picrites from Muli area, southeast Tibet. Acta Petrologica Sinica, 272:337-347.(*corresponding author)
13. Xu Ji-Feng, Katsuhiko Suzuki, Yi-Gang Xu, Hou-Jun Mei, Jie Li, 2007, Os, Pb, and Nd isotope geochemistry of the Permian Emeishan Continental flood basalts: Insights into the source of a large igneous province. Geochim. Cosmochim. Acta, vol. 71, 2104-2119.
14. Wang Q., Xu JF., Jian P., Bao ZW., et al. 2006, Petrogenesis of adakitic porphyries in an extensional tectonic setting, Dexing, South China: Implications for the Genesis of Porphyry copper mineralization. Journal of Petrology, 47(1): 119-144.
15. Wang Q., Wyman D. A., Xu J. F., Zhao Z. H.,et al.2006. Petrogenesis of Cretaceous adakitic and shoshonitic igneous rocks in the Luzong area, Anhui Province (eastern China): Implications for geodynamics and Cu-Au mineralization. Lithos, 89: 424-446.
16. Chen JL., *Xu JF., Kang ZQ., and Wang BD., 2006, Origin of the Miocene Bugasi Group volcanic rocks in the Cuoqin County, Western Tibetan Platueau, Acta Petrologica Sinica, 22(3): 585-594. (*corresponding author)
17. Dong YH., *Xu JF., Zeng QG., Wang Q., Mao GZ., and Li J., 2006, Is there a Neo-Tethys subduction record earlier than arc volcanic rocks in the Sangri Group? Acta Petrologica Sinica, 22(3): 661-668. (*corresponding author)
18. Wang Qiang, McDermott Frank, *Xu Ji-Feng, Bellon Hervé and Zhu Ying-tang,2005,Cenozoic K-rich adakitic volcanic rocks in the Hohxil area, northern Tibet: Lower-crustal melting in an intracontinental setting. Geology, 33(6), 465–468. (*corresponding author)
19. Xiao L, Xu JF,2005,Petrogenesis and tectonic setting of Dashibao Group basalts from Songpan-Ganze block, northwestern Sichuan province, China. Acta Petrologica Sinica, 21 (6): 1539-1545
20. Xu Ji-Feng and Castillo R Paterno,2004,Geochemical and Nd-Pb isotopic characteristics of the Tethyan asthenosphere: Implications for the origin of the Indian Ocean mantle domain,Tectonophysics, 393(1-4), 9-27
21. Wang Q., Xu JF, Zhao ZH., Bao ZW., Xu W., and Xiong XL., 2004, Cretaceous high-potassium intrusive rocks in the Yueshan-Hongzhen area of east China: adakites in an extensional tectonic regime within a continent. Geochemical Journal, 38: 417-434.
22. Xu Ji-Feng, Paterno R. Castillo, Chen Fan-Rong, et al. 2003,Geochemistry of late Paleozoic mafic igneous rocks from the Kuerti area, Xinjiang, northwest China: implications for backarc mantle evolution, Chemical Geology, 193, 137-154.
23. Wang Q., Xu JF, ZHAO ZH., Xiong XL., and Bao ZW., 2003, Petrogenesis of the Mesozoic intrusive rocks in the Tongling area, Anhui Province, China and their constraint on geodynamic process,Science in China (D), 46(8), 801-815.
24. LIU Yimao, Xu Ji-Feng, DAI Tongmo et al., 2003, 40Ar/39Ar isotopic ages of Qitianling granite and their geologic implications, Science in China (D), 46 Supplement, 50-59.
25. Xu Ji-Feng, Shinjo R., Defant M. J., Wang Q., Rapp R. P., 2002, Origin of Mesozoic adakitic intrusive rocks in the Ningzhen area of east China: Partial melting of delaminated lower continental crust? Geology, vol 30, 1111-1114.
26. Xu Ji-Feng, Castillo P. R., Li Xian-hua, et al. 2002, MORB-type rocks from the Paleo-Tethyan Mian-Lueyang Northern Ophiolite in the Qinling Mountains, Central China: Implications for the source of the low 206Pb/204Pb and high 143Nd/144Nd mantle component in the Indian Ocean, Earth Planet. Sci. Lett., 198, 323-337。
27. Defant MJ., Xu Ji-Feng, Kepezhinskas P., Wang Q., Zhang Q., and Xiao L., 2002, Adakites: some variations on a theme; Acta Petrologica Sinica, 18, 129-142.
28. Xu Ji-Feng,Mei Hou-Jun,Yu Xue-Yuan,Bai Zheng-Hua,Niu He-Cai,Chen Fan-Rong,Zhen Zuo-Ping,Wang Qiang,2001,Adakites related to subduction in the northern margin of Junggar arc for the Late Paleozoic: Products of slab melting,Chinese Science Bulletin, Vol. 46(15), 1312-1316.
29. Xu Ji-Feng, Wang Q., Xu, YG., Zhao, ZH., and Xiong XL., 2001, Geochemistry of Anjishan intermediate-acid intrusive rocks in Ningzhen area: Constraint to origin of the magma with HREE and Y depletion. Acta Petrologica Sinica 17, 576-584.
30. Xu Ji-Feng,Wang Qiang, Yu Xue-yuan, 2000, Geochemistry of high-Mg andesites and adakitic andesite from the Sanchazi block of the Mian-Lue ophiolitic melange in the Qinling Mountains, central China: Evidence of partial melting of the subducted Paleo-Tethyan crust, Geochemical Journal, 34,359~377.