The Academicians
Associate Professor
Special-Term Associate Professor
Professor of Engineering
Associate Senior Title
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Details of the Faculty or Staff
MAO Yajing
  Special-term Associate Professor
Highest Education  
Subject Categories  
  Economic Geology, Magmatic deposit
Zip Code  
  No.19 Beitucheng West Road, Chaoyang District, Beijing, 100029, China

Education and Appointments:

MAO Ya-Jing, Ph.D., was born at Wenling, Zhejiang Province in 1985. He received his Ph.D. from the University of Chinese Academy of Sciences in 2014, became an associate professor at the Institute of Geology and Geophysics, Chinese Academy of Sciences in December 2018. His research focused on ore-forming processes of magmatic Ni-Cu deposits. Based on systematic petrology, mineralogy, and geochemistry work on Ni-Cu deposits in the Xinjiang and Jinchuan deposit in Gansu province, he revealed the characteristics and formation mechanism of high-nickel tenor deposits, demonstrated the relationship between oxygen fugacity of the Ni-Cu deposits in Central Asian Orogenic belts, and proposed the sulfide enrichment mechanism of the Jinchuan deposit was the result of sulfide liquid percolation in a crystal mush. He has served as a reviewer for several peer-reviewed journals and given oral presentations in international Ni-Cu (PGE) conferences.
Learning and work experience:
2008, graduated from Guilin University of Technology, Bachelor
2011, graduated from China University of Geosciences (Wuhan), Master
2014, graduated from the University of Chinese Academy of Sciences, Ph.D
2013.10-2014.04, Indiana University, USA, Visiting Ph.D student
2014-2018, Institute of Geology and Geophysics, Chinese Academy of Sciences, Postdoc
2016.02-2017.03 Australian Commonwealth Scientific and Industrial Research Organization (CSIRO, Perth), Visiting postdoc

Research Interests:
  1. Metallogenic mechanism of magmatic Ni-Cu sulfide deposits
  2. Volatile evolution and cooling processes of basaltic magmas
  3. Mineralization imprints in silicates and sulfides
  4. Isotopic fractionation during ore-forming processes
Public Services:

  1. Chinese Academy of Sciences Zhuliyuehua outstanding doctoral student (2014)
  2. Annual Scientific and Technological Achievement Award of Institute of Geology and Geophysics, Chinese Academy of Sciences (Ranked 2, 2018)
  3. Fellow of the Youth Innovation Promotion Association Chinese Academy of Sciences (2021)

Supported Projects:
  1. National Natural Science Foundation of China (General program), Quantitative analysis of sulfide-silicate particle size distribution and morphology reveals sulfide enrichment process of magmatic Ni-Cu deposits in the Eastern Tianshan, 2021-2023, Leading investigator
  2. National Natural Science Foundation of China (General program), Oxygen fugacity barometry calibration based on tholeiitic basaltic magma fractionation experiments and its application to magmatic Ni-Cu deposits in orogenic belts, 2019-2022, Leading investigator
  3. January 2014 - December 2018, National Natural Science Foundation of China (program for young scholars), Leading investigator, Completed
  4. May 2015 - May 2017, Chinese Post-Doc Science Foundation of China, leading investigator, Leading investigator, Completed



  1. Mao Y-J, Barnes SJ, Schoneveld L, Godel B, Williams M, Tang D, Kang Z, Qin K-Z. 2022. Crystallization of spinel from co-existing silicate and sulfide immiscible liquids: an equilibrium case with postcumulus reactions. American Mineralogist. Doi:10.2138/am-2022-8473
  2. Mao Y-J, Schoneveld L, Barnes SJ, Williams MJ, Su B-X, Ruprecht P, Evans NJ, Qin K-Z. 2022. Coupled Li-P Zoning and Trace Elements of Olivine from Magmatic Ni-Cu Deposits: Implications for Postcumulus Re-Equilibration in Olivine. Journal of Petrology, 63(3): 1-22
  3. Mao Y-J, Barnes SJ, Godel B, Schoneveld L, Qin K-Z, Tang D, Williams M, Kang Z. 2022. Sulfide Ore Formation of the Kalatongke Ni-Cu Deposit as Illustrated by Sulfide Textures. Economic Geology, doi:10.5382/econgeo.4914
  4. Barnes SJ, Yao Z-S, Mao Y-J, Jesus AP, Yang SH, Taranovic V, Maier WD. 2022. Nickel in olivine as an exploration indicator for magmatic Ni-Cu sulfide deposits: a data review and re-evaluation. American Mineralogist, doi:10.2138/am-2022-8327
  5. Tang D, Qin K, Mao Y-J, Evans NJ. 2022. Magnetite geochemistry and iron isotope signature of disseminated and massive mineralization in the Kalatongke magmatic CuNi sulfide deposit, northwest China. Chemical Geology: 120965
  6. Sun Z, Qin K, Mao Y-J, Tang D, Wang F, Evans NJ, Zhou Q. 2022. Mineral chemistry of pyrochlore from the Boziguoer Nb-Ta-Zr-Rb-REE deposit, NW China: implications for Nb enrichment by alkaline magma differentiation. Minerals, 12(7): 785

  7. Fang LR, Tang DM, Junge M, Qin KZ, Mao Y-J, Evans NJ, Wohlgemuth‐Ueberwasser CC, Niu YJ. 2021. Two‐stage magmatism and mineralization of Tulaergen nickel‐copper deposit in eastern Tianshan, North‐west China: Evidence from bulk rock geochemistry and in situ mineral chemistry. Geological Journal, 56(7): 3808-3832
  8. Tang D, Qin K, Su B, Mao Y-J, Fang L. 2021. Addition of H2O at the Baishiquan and Tianyu magmatic Ni-Cu sulfide deposits, southern Central Asian Orogenic Belt, China: evidence from isotopic geochemistry of olivine and zircon. Mineralium Deposita: 1-20

  9. Kang Z, Qin K-Z, Mao Y-J, Tang D-M, Yao Z-S. 2020. The formation of a magmatic CuNi sulfide deposit in mafic intrusions at the Kalatongke, NW China: Insights from amphibole mineralogy and composition. Lithos, 352-353: 105317
  10. Schoneveld L, Barnes SJ, Makkonen HV, Le Vaillant M, Paterson DJ, Taranovic V, Wang K-Y, Mao Y-J. 2020. Zoned pyroxenes as prospectivity indicators for magmatic Ni-Cu sulfide mineralisation. Frontiers in Earth Science, 8: 256
  11. Williams MJ, Schoneveld L, Mao Y-J, Klump J, Gosses J, Dalton H, Bath A, Barnes S. 2020. pyrolite: Python for geochemistry. Journal of Open Source Software, 5(50): 2314
  12. Tang D, Qin K, Su B, Mao Y-J, Evans NJ, Niu Y, Kang Z. 2020. Sulfur and copper isotopic signatures of chalcopyrite at Kalatongke and Baishiquan: Insights into the origin of magmatic Ni-Cu sulfide deposits. Geochimica et Cosmochimica Acta, 275: 209-228
  13. Su X, Peng P, Zhu R, Mao Y-J, Zhang Z, Sun F. 2020. Multi-stage evolution of the Xuhuai rift: Insights from the occurrence and compositional profiles of doleritic sills in the southeastern margin of the North China Craton. Gondwana Research, 82: 221-240

  14. Mao Y-J, Barnes SJ, Qin K-Z, Tang D, Martin L, Su B, Evans NJ. 2019. Rapid orthopyroxene growth induced by silica assimilation: constraints from sector-zoned orthopyroxene, olivine oxygen isotopes and trace element variations in the Huangshanxi Ni–Cu deposit, Northwest China. Contributions to Mineralogy and Petrology, 174(4): 33

  15. Mao Y-J, Barnes SJ, Duan J, Qin KZ, Godel BM, Jiao JG. 2018. Morphology and Particle Size Distribution of Olivines and Sulphides in the Jinchuan Ni–Cu Sulphide Deposit: Evidence for Sulphide Percolation in a Crystal Mush. Journal of Petrology, 59(9): 1701-1730.
  16. Mao Y-J, Qin KZ, Barnes SJ, Ferraina C, Iacono–Marziano G, Verrall M, Tang DM, Xue SC. 2018. A revised oxygen barometry in sulfide-saturated magmas and application to the Permian magmatic Ni–Cu deposits in the southern Central Asian Orogenic Belt. Mineralium Deposita, 53(6): 731-755.
  17. Mao Y-J, Qin KZ, Tang DM. 2018. Revisiting the age and emplacement process of the Huangshandong Ni–Cu deposit in the Central Asian Orogenic belt, northwestern China: Implications for multiple magma extractions from a short–lived staging magma chamber. Lithos, 320-321:583-591.
  18. Mao Y-J, Dash B, Qin KZ, Bujinlkham B, Tang DM. 2018. Comparisons among the Oortsog, Dulaan, and Nomgon mafic-ultramafic intrusions in central Mongolia and Ni-Cu deposits in NW China: implications for economic Ni-Cu-PGE ore exploration in central Mongolia. Russian Geology and Geophysics, 59(1): 1-18.

  19. Mao Y-J, Qin KZ, Barnes SJ, Tang DM, Xue SC, Le Vaillant M. 2017. Genesis of the Huangshannan high-Ni tenor magmatic sulfide deposit in the Eastern Tianshan, northwest China: Constraints from PGE geochemistry and Os–S isotopes. Ore Geology Reviews, 90: 591-606.
  20. Mao Y-J, Tang DM, Qin KZ, Taranovic V. 2017. Geochemistry of the~ 326 Ma Xinyuan mafic intrusion in the Eastern Junggar Terrane, Northwest China: implications for tectonic setting and magmatic Ni–Cu mineralization potential. International Geology Review, 59(10): 1276-1291.
  21. Tang DM, Qin KZ, Xue SC, Mao Y-J, Evans, N J, Niu, YJ, Chen, JL. 2017. Genesis of the Permian Kemozibayi sulfide-bearing mafic-ultramafic intrusion in Altay, NW China: Evidence from zircon geochronology, Hf and O isotopes and mineral chemistry. Lithos, 292: 49-68.

  22. Mao Y-J, Qin KZ, Tang DM, Feng HY, Xue SC. 2016. Crustal contamination and sulfide immiscibility history of the Permian Huangshannan magmatic Ni-Cu sulfide deposit, East Tianshan, NW China. Journal of Asian Earth Sciences, 129: 22-37.
  23. Xue SC, Qin KZ, Li CS, Tang DM, Mao Y-J, Qi L, and Ripley E M. 2016. Geochronological, Petrological, and Geochemical Constraints on Ni-Cu Sulfide Mineralization in the Poyi Ultramafic-Troctolitic Intrusion in the Northeast Rim of the Tarim Craton, Western China: Economic Geology, 111: 1465-1484.

    Before 2015
  24. Mao Y-J, Qin KZ, Li C, Tang DM. 2015. A modified genetic model for the Huangshandong magmatic sulfide deposit in the Central Asian Orogenic Belt, Xinjiang, western China. Mineralium Deposita, 50(1): 65-82.
  25. Mao Y-J, Qin KZ, Li C, Xue SC, Ripley EM. 2014. Petrogenesis and ore genesis of the Permian Huangshanxi sulfide ore-bearing mafic-ultramafic intrusion in the Central Asian Orogenic Belt, western China. Lithos, 200(0): 111-125.
  26. Tang DM, Qin KZ, Su BX, Sakyi P A, Mao Y-J, and Xue SC. 2014. Petrogenesis and mineralization of the Hulu Ni-Cu sulphide deposit in Xinjiang, NW China: constraints from Sr-Nd isotopic and PGE compositions: International Geology Review, 56: 711-733.
No. 19, Beitucheng Xilu, Chaoyang District, 100029, Beijing, PR China
Tel:010-82998001 Fax:010-62010846