Mihail Pavlovitch Tarassov

Senior Research Associate, Dr.

Central Laboratory of Mineralogy and Crystallography
Bulgarian Academy of Sciences
1113 Sofia, Acad. G. Bonchev Str., Bl. 107, BULGARIA
Phone: (+359 2) 8700161/48 Fax: (+3592) 9797056
E-mail:mptarass@dir.bg, mptarassov@clmc.bas.bg


Date and place of birth:

Education and academic degrees obtained:

  • University of Leningrad (St. –Petersburg), Geology Faculty, Geochemistry Department, 1983
  • CLMC-BAS, PhD, “Mineralogy and Crystallography”, 2001
  • CLMC-BAS, Senior Research Associate Degree II “Mineralogy and Crystallography”, 2003
Professional experience and Administrative positions:
  • CLMC-BAS, Scientific Secretary, 2007 - till now
  • CLMC-BAS, Chairman of the Assembly of Scientists in CLMC-BAS, 2004 - 2007
  • CLMC-BAS, Senior Research Associate in Department „Structural Crystallography”, 2003 - till now
  • CLMC-BAS, Research Associate Degree I, “Mineralogy and Crystallography”, Department „Structural Crystallography”, 1999-2003
  • CLMC-BAS, Chief of Electron Microscopy Laboratory, 1995 - till now
  • Institute of Applied Mineralogy – BAS, Research Associate Degree II, “Mineralogy and Crystallography”, 1986

Fields of interest and research:

  • Indicator properties of minerals; electron microscopy and electron probe microanalysis; structural mechanisms of mineral transformations; weathering processes; sol-gel processes; nanoprocesses and nanomaterials; REE-Th-U minerals.

Membership in Scientific Societies:

  • Bulgarian Geological Society - regular member.
  • Bulgarian Mineralogical Society
  • Editorial Board of the Journal “Reviews of Bulgarian Geological Society" (since 2003)

Most imortant projects:

  • "Chemical and structural transformation of tungsten minerals at low-temperature (exogene) conditions: experiment, analysis and modeling" (1996-2000), funded by Bulgarian National Scientific Fund, № NZ-636/1996 (project leader - M. Tarassov).

  • "Low-temperature formation and transformation of Fe(III) oxides and oxihydroxides under exogene conditions" (2002-2004). BAS-RAS bilateral agreement; partners: CLMC-BAS and Institute of Geology, Komi Research Centre, Ural Branch of the RAS (project leader - M. Tarassov, Bulgarian team).

  • “Crystal chemistry, defect structure and electron probe dating of allanites and monazites from magmatic and metamorphic rocks” (2003-2006), funded by Bulgarian National Scientific Fund, № NZ-1304/2003 (project leader - M. Tarassov).

  • “Minerals of rare elements in granites of S- and A-types on the example of peraluminous granites of Bulgaria and alkaline granites of the Kola Peninsula, Russia” (2009-2011). BAS-RAS bilateral agreement. Partners CLMC-BAS and Geological Institute of the Kola Science Centre of the RAS (project leader - M. Tarassov, Bulgarian team).

Selected publications:

1. Tarassov, M.P., Bozhilov, K.N., Petrov, O.E. 1991. Iron-containing X-ray amorphous tungsten ochre from Grantcharitza deposit (Western Rhodopes): XRD and TEM study. - Comp. rend. Acad. bulg. Sci., 44, 12, 65-68.
2. Tarassov, M.P., Konstantinov, L.L., Kantchev, K.S. 1991. Iron-containing X-ray amorphous tungsten ochre from Grantcharitza deposit (Western Rhodopes): microstructure, composition, and spectroscopic properties. - Comp. rend. Acad. bulg. Sci., 44, 11, 55-58
3. Tarassov, M.P., Konstantinov, L.L. 1992. Disorder in the structure of ferritungstite: Raman spectroscopy data. - Comp. rend. Acad. bulg. Sci. 45, 5, 75-78
4. Benevolenskaya, E.B., Sorokin, N.D., Tarassov, M.P. 1992. Alteration of wolframite at supergene conditions. – Mineralogical Journal (Mineralogicheskii Zhurnal, USSR), 14, 5, 88-97 (in Russian)
5. Zotov, N.S, Tarassov, M.P. 1993. X-ray diffraction study of amorphous iron-containing tungsten oxide gels: radial distribution function analysis. - Material Sciences Forum, 133-136, 945-950.
6. Shumov, D.P., Tarassov, M.P., Nikolov, N.S. 1993. Investigation of optical inhomogeneities in high-temperature tungsten-containing solutions. - J. Cryst. Growth, 129, 635-639.
7. Tarassov, M.P., Marinov, M.S., Konstantinov, L.L., Zotov, N.S. 1994. Raman spectroscopy of ferritungstite: experimental and model spectra. - Physics and Chemistry of Minerals, 21, 1/2, 63-66
8. Kanazirev, V., Valtchev, V., Tarassov, M.P. 1994. Long-distance transfer of indium into large HZSM-5 crystals. - J. Chem. Soc., Chem. Commun., 1043-1044.
9. Tarassov, M.P. 1995. WO3.1/3H2O phase as initial product of scheelite decomposition in diluted sulfuric acid solutions: experimental data and natural analogues. – Geochemistry, Mineralogy and Petrology (Geohimiya, Mineralogiya i Petrologiya, Bulgaria), 30, 19-30 (in Russian).
10. Vassilev, S.V., Eskenazy, G.M., Tarassov, M.P., Dimov V.I. 1995. Mineralogy and geochemistry of a vitrain lense with high trace element content from the Vulche Pole coal deposit. - Geologica Balkanica, 25, 3-4, 111-124
11. Kirov, G.K, Hristov, St., Tarassov, M.P. 1995. An unusual phenomenon observed during the heating of man-made quartz crystals. - Comp. rend. Acad. bulg. Sci., 48, 2, 73-75
12. Tarassov, M.P., Dimov, V., Khaltakova, N. 1998. Acid Alteration of Scheelite: I. TEM Study of the Conversion of Scheelite to WO3.1/3H2O. - Comp. rend. Acad. bulg. Sci., 51, 11-12, 65-69.
13. Tarassova, E., M. Тарасов. 1998. Accessory Fe-Ti oxides from Malko Tarnovo pluton, Eastern Srednogorie. - Geochemistry, Mineralogy and Petrology (Geohimiya, Mineralogiya i Petrologiya, Bulgaria), 34, 43-50 (in Bulgarian).
14. Tarassov, M.P., Khaltakova, N. 1999. Acid Alteration of Scheelite: II. Using a Fundamental Building Blocks Approach to Conversion of Scheelite to WO3.1/3H2O. - Comp. rend. Acad. bulg. Sci., 52, 1-2, 61-64.
15. Zidarov, N., Muchovki, J., Marinov, M., Tarassov, M., Zotov, N. 2001. Ion-mass transport in anhydrous basaltic melts in an electric field. – Chemical Geology, 174, 51-61.
16. Tarassov, M.P. 2001. X-ray amorphous and crystalline ferric iron tungsten oxide phases from Grantcharitza tungsten deposit, Bulgaria. In: Proceedings of the International Seminar “Non-Crystalline State of Solid Mineral Matter”, Syktyvkar, Republic of Komi, Russia, June 19-21, 2001. Part 3, 103-105.
17. Tarassov, M., Mihailova, B., Tarassova, E., Konstantinov, L. 2002. Chemical composition and vibrational spectra of tungsten-bearing goethite and hematite from Western Rhodopes, Bulgaria. – European Journal of Mineralogy, 14, 977-986.
18. Tarassov, M., Mihailova, Б., Tarassova, Е., Konstantinov, L. 2003. Fe2O3.nH2O-nanophases formed in tungsten-polyanion-assisted sol-gel process. –Nanoscience & Nanotechnology, 3, 64-66.
19. Tarassov, M.P., Tarassova, E.D., Konstantinov, L.L. 2004. Sol-gel preparation and characterization of amorphous and crystalline WO3.xFe2O3.nH2O phases. – Nanoscience & Nanotechnology, 4, 92-94.
20. Tarassova, E.D., Tarassov, M.P. 2004. Accessory allanite and its petrogenetic significance for granitoids from Belassitsa Mountain, Serbo-Macedonian Massif. – Proceedings of “5-th International Symposium on Eastern Mediterranean Geology”, Thessaloniki, Greece, 14-20 April 2004, 1248-1251.
21. Tarassov, M., Tarassova, E., Peytcheva, I., von Quadt, A. 2004. Th-U-Pb electron microprobe age dating of monazite from Igralishte and Klissure granites: preliminary data. – In: Proceedings of Annual Scientific Conference of the Bulgarian Geological Society “Geology 2004”, 86-88.
22. Tarassov, M. 2005. Chemical and structural transformations of tungsten, tungsten-iron and iron mineral phases at exogene conditions (review). – In: Jubilee Volume “10 Years Anniversary of the Central Laboratory of Mineralogy and Crystallography”, 47-50 (in Bulgarian).
23. Muchovski, J.T., Tarassov, M.P., Zidarov, N.G. 2005. Experimental study of mass-transport processes in basaltic melts at a constant electric field. – Proceedings of “XV Russian workshop on experimental mineralogy”, Syktyvkar, June 22-24, 2005, 88-90.
24. Kostov-Kytin, V., Mihailova, B., Kalvachev, Yu., Tarassov, M. (2005) Atomic arrangement in amorphous sodium titanosilicate precursor powders. – Microporous and Mesoporous Materials, 86, 223-230
25. Tarassov, M., Tarassova, E. 2005. Occurrence, chemical composition and electron probe dating of accessory REE-Y-Th-U minerals from Igralishte granite pluton (Ograzhden block, Serbo-Macedonian massif). – Proceeedings of the Jubilee International Conference “80 years Bulgarian Geological Society”, 91-94.
26. Dimitrova D., E. Tarassova, M. Tarassov. 2006. Rare Bi and Ni minerals from Martinovo iron skarn deposit, Northwestern Bulgaria. – In: Proceedings of Field Workshop “Au-Ag-Te-Se deposits”, Izmir-Turkey, 24-29 September, 42-49.
27. Muchovski, J., Tarassov, M., Zidarov, N., Sapundzhiev, Ts.J. 2007. Experimental investigation and mathematical modelling of non-stationary mass-transport in basaltic melts under an external dc electric field. - Bulg. Chem. Commun., 39(4) 260-263.
28. Tarassov, M.P., Тарасова, E. 2007. Electron microprobe dating of allanite from the Skrat granitoids (Southwestern Bulgaria). - Proceedings of National Conf. “Geosciences 2007”, Sofia, 94-97 (in Bulgarian)
29. Tarassova E., Tarassov M., von Quadt A., Peycheva I. 2008. Mineralogical and geochemical characteristics of the Igralishte pluton, Southwestern Bulgaria. - Geologica Macedonica, 2, Special issue, 317-322.
30. Tarassov, M., E. Tarassova, I. Piroeva. 2008. Alteration of monazite in the Igralishte pluton, Southwestern Bulgaria. - Proceedings of National Conf. “Geosciences 2008”, Sofia, 25-26.
31. Zidarov, N., O. Petrov, M. Tarassov, Zhl. Damyanov, E. Tarassova, V. Petkova, Y. Kalvachev, Zl. Zlatev. 2009. Mn-rich norsethite from Kremikovtsi ore deposit. - N. J. fur Miner. Mh, 186, 3, 321-331.
32. Peytcheva, I., A. von Quadt, M. Tarassov, N. Zidarov, E. Tarassova, V. Andreichev. 2009. Timing and magma sources of Igralishte pluton in Ograzhden Mountain, SW Bulgaria: implications for the Permian-Triassic tectono-magmatic evolution of the region. - Geologica Balcanica, 37, 3-4, 3-12.
33. Tarassov, M.P. 2009. Current state and application of SEM and EPMA in mineralogy, petrology and material science research. - Proceedings of I-st National Crystallographic Symposium, Sofia, October 22-23, 2009, 90-95.