STEPANOV ALEKSANDR，萨沙，男，2002年和2004年在俄罗斯Novosibirsk州立大学分别获得学士和硕士学位，2012年获得澳大利亚国立大学地质学博士学位。2012年-2019年先后在澳大利亚塔斯马尼亚大学任博士后和研究员，2019年3月任中国地质大学（武汉）资源学院教授、博士生导师。目前主要从事矿床学、矿床地球化学以及原位微区测试技术等方面的研究工作。

主要研究领域：

    1. 战略性关键金属元素的地球化学行为和富集机制；

        Geochemistry of rare strategic metal deposits. Role of anatexis and metamorphism in concentration of rare metals.

    2. 矿物形成过程的模拟，流体/熔体/矿物分配在地球化学问题中的应用；

        Modelling of mineral-forming processes, application of fluid/melt/mineral partitioning to geochemical problems.

    3. LA-ICP-MS的开发及其在地质问题和矿产勘探中的应用；

        Development of LA-ICP-MS and its application to geological problems and mineral exploration.

    4. 利用矿物成分重建蚀变晕并指导找矿。

        Use of mineral compositions for reconstruction of alteration halos and vectoring to potential mineral resources.

主持或承担的主要项目：

        花岗岩熔体中钛铁矿的溶解度和微量元素分配实验研究：了解花岗岩和金属矿床形成机制的新工具，国家自然科学基金面上项目，2021.10-2024.12，主持；

代表性论文（*为通讯作者）：

1. Stepanov* A. S., Zhukova I. A., Jiang Sh.-Y., Experimental constraints on miscibility gap and partitioning between britholite and chlorapatite in alkaline melt, American Mineralogist, accepted in Sep 2022.

2. Vetrov E.V., Uvarov A.N., Andreeva E.S., Vetrova N.I., Zhimulev F.I., Stepanov A.S., Vishnevskaya I.A., Chervyakovskaya M.V., The Middle Paleozoic Magmatism of the Central Tuvinian Trough (Eastern Altai–Sayan Fold Area): Petrogenesis, Tectonics, and Geodynamics, Russian Geology and Geophysics, 2022. https://doi.org/10.2113/RGG20214379

3. Gregory D.D., Lyons T.W., Large R.R., Stepanov A.S. Ground-truthing the pyrite trace element proxy in modern euxinic settings, American Mineralogist 107 (5), 848-859, 2022.

4. Dokuchits E.Yu., Jiang Sh.-Y., Stepanov A.S., Zhukova I.A., Radomskaya T.A., Marfin A.E., Vishnevskiy A.V. Geochemistry of Ca-(K)-(Na) silicates from charoitites in the Sirenevyi Kamen gemstone deposit, Murun Complex, Eastern Siberia, Ore Geology Reviews, 143:1-16, 2022.

5. Zhukova I. A., Stepanov* A. S., Korsakov A. V., Jiang Sh-Y Application of Raman spectroscopy for the identification of phosphate minerals from REE supergene deposit, DOI:10.1002/jrs.6213, Journal of Raman Spectroscopy, 53(3): 485-496, 2022.

6. Zhukova I. A., Stepanov* A. S., Jiang Sh-Y, Murphy D., Mavrogenes J., Allen Ch., Chen W., Bottrill R.S., Complex REE systematics of carbonatites and weathering products from uniquely rich Mount Weld REE deposit, West Australia, Ore Geology Reviews, Volume 139, 2021.

7. Mikhailenko D.S., Aulbach S., Korsakov A.V., Golovin A.V., Malygina E.V., Gerdes A., Stepanov A.S., and Xu Y.-G. (2021) Origin of graphite-diamond-bearing eclogites from Udachnaya kimberlite pipe. Journal of Petrology, 62 (8):1-32, egab033, 2021.

8. Stepanov A.S., Large R.R., Kiseeva E.S., Danyushevsky L.V., Goemann K., Meffre S., Zhukova I., and Belousov I.A. Phase relations of arsenian pyrite and arsenopyrite. Ore Geology Reviews, 136, 104285, 2021.

9. Stepanov A.S., A review of the geochemical changes occurring during metamorphic devolatilization of metasedimentary rocks. Chemical Geology, 568 v, 120080, 2021.

10. Denholm J.L., Stepanov* A.S., Meffre S., Bottrill R.S., Thompson J.M. The geochronology of Tasmanian tin deposits using LA-ICP-MS U-Pb cassiterite dating, 116 (6): 1387–1407, 2021.

11. Stepanov A.S., Danyushevsky L. V., Large R. R., Mukherjee I., Zhukova I. A., Deconvolution of the composition of fine-grained pyrite in sedimentary matrix by regression of time-resolved LA-ICP-MS data, American Mineralogist, 105 (6), 820-832, 2020.

12. Mukherjee I., Large R. R., Bull S., Gregory D. G., Stepanov A. S., Avila J., Ireland T. R. Corkrey R. Pyrite trace element and sulphur isotope geochemistry of Paleo-Mesoproterozoic McArthur Basin: Proxy for Oxidative weathering, American Mineralogist, 104, 1256-1272, 2019.

13. Stepanov A. S., Arsenic evolution as a tool for understanding formation of pyritic gold ores: COMMENT; Geology, 47 (12), e491-e491, 2019.

14. Chapman N. D., Ferguson M., Meffre S.J., Stepanov A. S., Maas R., Ehrig K.J. Pb-isotopic constraints on the source of A-type Suites: Insights from the Hiltaba Suite - Gawler Range Volcanics Magmatic Event, Gawler Craton, South Australia. Lithos, v. 346–347, 2019.

15. Gregory D. D., Mukherjee I., Olson S. L., Large R.R., Danyushevsky L. V., Stepanov A. S., Avila. J. N., Cliff J., Ireland T. R., Raiswell R., Olin P. H., Maslennikov, V. V. Lyons T. W., The formation mechanisms of sedimentary pyrite nodules determined by trace element and sulfur isotope microanalysis. Geochimica et Cosmochimica Acta, v. 259, pp. 53-68, 2019. 

16. Nurlu N, Türkmen S, Şimşek G, Stepanov A. S. (2018) Geochemistry and zircon U–Pb geochronology constrains late cretaceous plagiogranite intrusions in Mersin ophiolite complex (southern Turkey). Arab J Geosci 11:745. doi: 10.1007/s12517-018-4120-3, 2018.

17. Stepanov A. S. The tales of disequilibrium and equilibrium crystallization of rare metal minerals: Data from new experiments. American Mineralogist 103:1353–1353. doi: 10.2138/am-2018-6671, 2018

18. Sykora S., Cooke D. R., Meffre S., Stepanov A. S., Gardner K., Scott R., Selley D., Harris A. C., Evolution of Pyrite Trace Element Compositions from Porphyry-Style and Epithermal Conditions at the Lihir Gold Deposit: Implications for Ore Genesis and Mineral Processing, Economic Geology, v. 113, pp. 193–208, 2018

19. Large R. R., Mukherjee I., Zhukova I., Corkrey R., Stepanov A. S., Role of upper-most crustal composition in the evolution of the Precambrian ocean–atmosphere system, Earth and Planetary Science Letters 487, 44-53, 2018.

20. Gregory D. D., Lyons T. W. Large R. R., Jiang G., Stepanov, A. S., Diamond C. W., Figueroa M. C., Olin P., Whole rock and discrete pyrite geochemistry as complementary tracers of ancient ocean chemistry: An example from the Neoproterozoic Doushantuo Formation, China, Geochimica et Cosmochimica Acta 216, 201-220, 2017.

21. Stepanov A. S., Campbell I. H., Rapp R. P., Lowczak J., Korsakov A. V., Discussion: “Xenoliths in ultrapotassic volcanic rocks in the Lhasa block: direct evidence for crust–mantle mixing and metamorphism in the deep crust” by Wang et al. 2016, Contributions to Mineralogy and Petrology 171:62, 2016.

22. Stepanov A. S., Hermann J., Rubatto D., Korsakov A. V., Danyushevsky L. D. Melting History of an Ultrahigh-pressure Paragneiss Revealed by Multiphase Solid Inclusions in Garnet, Kokchetav Massif, Kazakhstan, Journal of Petrology, 57 (8), 1531-1554, 2016.

23.  Stepanov A. S., Meffre S., Mavrogenes J. A., Steadman J. Nb-Ta fractionation in peraluminous granites: A marker of the magmatic-hydrothermal transition: Comment; Geology, Vol. 44, No7, pp. e394-e394, 2016

24. Stepanov A. S., Rubatto D., Hermann J., Korsakov A. V., Contrasting PT paths within the Barchi-Kol UHP terrain (Kokchetav Complex): Implications for subduction and exhumation of continental crust, American Mineralogist, Vol. 101, No4, p. 788-807, April, 2016.

25. Simonov V. A. , Puchkov V. N., Prikhod’ko V. S., Stupakov S. I., Kotlyarov A. V., Karmanov N. S., Stepanov A. S., Physicochemical conditions of crystallization of dunites of the Nizhnii Tagil Pt-bearing massif (Middle Urals), Russian Geology and Geophysics, Vol. 57, No6, pp. 868–890, June, 2016.

26. Meffre S., Large R. R., Steadman J. A., Gregory D. D., Stepanov A. S, Kamenetsky V. S., Ehrig K. J., Scott R. J. Multi-stage enrichment processes for large gold-bearing ore deposits, Ore Geology Reviews, 268-279, Vol. 76, pp. 268-279, July, 2016.

27. Cave B.J., Stepanov A. S., Craw D., Large R. R. and Halpin J. A., Release of trace elements through the sub-greenschist facies breakdown of detrital rutile to metamorphic titanite in the Otago Schist, New Zealand, Canadian Mineralogist, Vol. 53, No3, 379-400, May, 2016.

28. Large R. R., Halpin J. A., Lounejeva E., Danyushevsky L. D., Maslennikov V. V., Gregory D., Sack P. J., Haines P. W., Long J. A., Makoundi C., Stepanov A. S., Cycles of nutrient trace elements in the Phanerozoic ocean, Gondwana Research, Vol. 28, No4, pp. 1282-1293, December, 2015.

29. Stepanov A. S., Mavrogenes J. A., Meffre S., Davidson P., The key role of mica during igneous concentration of tantalum, Contributions to Mineralogy and Petrology, Vol. 167, No6, 1-8, June, 2014.

30. Stepanov A. S., Hermann J., Korsakov A. V., Rubatto D., Geochemistry of ultrahigh-pressure anatexis: fractionation of elements in the Kokchetav gneisses during melting at diamond-facies conditions, Contributions to Mineralogy and Petrology, Vol. 167, No5, 1-25, May, 2014.

31. Campbell I. H., Stepanov A. S., Liang H., Allen C., Norman M., Zhang Q., Xie Y., The origin of shoshonites: new insights from the Tertiary high-potassium intrusions of Eastern Tibet, Contributions to Mineralogy and Petrology, Vol. 167, No1, pp. 1-22, March, 2014.

32. Kiseeva E. S., Yaxley G. M., Stepanov A. S., Tkalčić H., Litasov K. D., Kamenetsky V. S. ,. Metapyroxenite in the mantle transition zone revealed from majorite inclusions in diamonds, Geology, Vol. 41, No8, pp. 883-886, August, 2013.

33. Stepanov A. S., Hermann J., Fractionation of Nb and Ta by biotite and phengite: Implications for the "missing Nb paradox". Geology, Vol. 41, No3, pp. 303–306, March, 2013.

34. Stepanov A. S., Hermann J., Rubatto D., Rapp R. R., Experimental study of monazite/melt partitioning with implications for the REE, Th and U geochemistry of crustal rocks. Chemical Geology, Vol. 300-301, pp. 200-220, March, 2012.

35. Stepanov A. S., Korsakov A. V., Yuryeva O. P., Nadolinny V. A., Perrakid M., De Gusseme K., Vandenabeele P., Brown diamonds from an eclogite xenolith from Udachnaya kimberlite, Yakutia, Russia, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 80, No1 pp. 41-48, October 2011.

36. Wang C. Y., Campbell I. H., Stepanov A. S., Allen C. M., Burtsev I. N., Growth rate of the preserved continental crust: II. Constraints from Hf and O isotopes in detrital zircons from Greater Russian rivers, Geochemica et Cosmochemica Acta, Vol. 75, No5 pp. 1308-1345, March, 2011.

37. Nadolinny V. A., Yuryeva O. P., Shatsky V. S., Stepanov A. S., Golushko V. V., Rakhmanova M. I., Kupriyanov I. N., Kalinin A. A., Palyanov Y. N., Zedgenizov D., New Data on the Nature of the EPR OK1 and N3 Centers in Diamond, Applied Magnetic Resonance, Vol. 36, No1, pp. 97-108, November, 2009.

38. Stepanov A. S., Shatsky V. S., Zedgenizov D. A., Ragozin A. L., Chemical heterogeneity in the diamondiferous eclogite xenolith from the Udachnaya Kimberlite Pipe, Doklady Earth Sciences, Vol. 419, No 2, pp. 308-311, March, 2008.

39. Stepanov A. S., Shatsky V. S., Zedgenizov D. A., Sobolev N. V., Causes of variations in morphology and impurities of diamonds from the Udachnaya Pipe eclogite, Russian Geology and Geophysics, Vol. 48, No9, pp. 758-769, September, 2008.

40. Korsakov A. V., Hutsebaut D., Theunissen K., Vandenabeele P., Stepanov A. S., Raman mapping of coesite inclusions in garnet from the Kokchetav massif (Northern Kazakhstan). Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 68, No4, pp. 1046-1052, December, 2007.

41. Nadolinny V. A., Shatsky V. S., Kozmenko O. A., Stepanov A. S., Palyanov Yu. N., Kupriynov I. N., Study of local concentration of single substitutional nitrogen atoms in microdiamonds from the Kokchetav massif. European Journal of Mineralogy, Vol. 18, No6, pp. 739-743, November, 2006.