THESIS, RESEARCH ARTICLES AND PROJECTS

THESIS AND RESEARCH  ARTICLES

  1. Tzankova N. Agate – types, mineral composition, forming conditions, typomorphic features. Most important jewelry events of Agate in Bulgaria. – Bachelor of Science, Gemology, New Bulgarian University, S., 104.
  2. Tzankova N. Mineral composition and geochemical peculiarities of mica-bearing microcline-oligoclase granitic pegmatites from the region of village Pastra, Rila Mountain. – Master degree in Applied Mineralogy, University of Mining and Geology “St. Ivan Rilski”, Sofia, 72.
  3. Tzankova N. 2004. Ilmenorutile from the microcline-oligoclase pegmatites occurring in the region of Pastra in Rila mountain. – In: Minerogenesis-2004. Scientific Session in Honour of the 90th Anniversary of Academician Ivan Kostov. Abstracts. Sofia, University of Sosia, 22-23 January, 62-63 (in Bulgarian).
  4. Tzankova N. 2005. Morphology and chemical zoning in garnets from Precambrian metamorphic rocks in the rim of Sakar pluton, Southeast Bulgaria.  – Comptes rendus de l’Academie bulgare des Sciences, 58, 7, 775-782.
  5. Tzankova N. 2005. Chemical characterization of garnets and P-T conditions of metamorphism of the Triassic rocks occurring to the south of Oreschnik, South-East Bulgaria. – Ann. Univ. Min. Geol., 48, 1, Geol., 155-160.
  6. Tzankova N., O. Vitov. 2006. Mineralogical peculiarities and distribution of garnet mineralizations in the region of Sakar, Southeast Bulgaria. – Ann. Univ. Min. Geol., 49, 1, Geol., 69-78 (in Bulgarian with English abstract).
  7. Tzankova N., O. Petrov. 2006. ICP AES, microprobe and X-ray powder diffraction data for garnets from metamorphic rocks in the Sakar region, SE Bulgaria. – Geochemistry, Mineralogy and  Petrology, 44, 73-89.
  8. Tzankova N., O. Petrov, M. Kadiyski. 2006. Crystal chemical features of garnets from metamorphic rocks of Zhalti Chal and Ustrem Formations from the frame of Sakar pluton, SE Bulgaria. – Comptes rendus de l’Academie bulgare des Sciences, 59, 5, 531-538.
  9. Tzankova N. 2006. Garnets from the Sakar Region, SE Bulgaria. The relationship between chemical composition and physical properties with an emphasis on use in the abrasive industry. – Presentation, SE Europe Geoscience Foundation Conference, October 3rd, 2006, Sofia
  10. Tzankova N. 2007. Variability of rhombododecahedral garnet crystals from metamorphic rocks in the frame of the Sakar Pluton, SE Bulgaria.  – Comptes rendus de l’Academie bulgare des Sciences, 60, 2, 155-158.
  11. Tzankova N., S. Pristavova. 2007. New data about petrography and mineralogy of garnet-bearing mica schists in the frame of the Sakar pluton, SE Bulgaria. – Comptes rendus de l’Academie bulgare des Sciences, 60, 2, 159-164.
  12. Tzankova N., S. Pristavova. 2007. Metamorphic evolution of garnet-bearing schists from the Mountain Sakar, Southeastern Bulgaria. – Comptes rendus de l’Academie bulgare des Sciences, 60, 3, 271-278.
  13. Tzankova N. 2007. Habit evolution of garnets from metamorphic rocks in the Sakar region (SE Bulgaria).  – Comptes rendus de l’Academie bulgare des Sciences, 60, 4, 401-406.
  14. Tzankova N. 2007. Crystal chemical study of garnets from metamorphic rocks along the Yavuz Dere River in the Sakar region, SE Bulgaria, with an emphasis on use in the abrasive industry. – Geology and mineral resources, 4, 14-18.
  15. Vitov O., N. Tzankova. 2007. Mineralogical mapping and prognosis for garnet deposits in Sakar Mt, SE Bulgaria – Annual Report No. 12 of Central Laboratory of Mineralogy and Crystallography, 2007, Editor: Dr. Nikola Zidarov.
  16. Tzankova N. 2007. Morphology and crystal-chemistry of garnets from the metamorphic rocks in the frame of the Sakar pluton, SE Bulgaria. – Ph.D. in Mineralogy and Crystallography University of Mining and Geology “St. Ivan Rilski”, Sofia, 211.
  17. Tzankova N. 2008. Contemporary gemological alternatives of ivory. – Geology and mineral resources, 6, 29-33 (in Bulgarian with English abstract).
  18. Radichev R. S. Strashimirov, S. Pristavova, S. Dimovski, N. Tzankova. 2009. A complex scientific-educational center for geology and geophysics at the University of Mining and Geology “St. Ivan Rilski”. – Advances in Bulgarian science, 3, 27-34.
  19. Strashimirov Str., S. Pristavova, R. Radichev, S. Dimovski, N. Tzankova. 2011. Support of geological and geophysical education through a Complex Scientific-Educational Centre at the University of Mining and Geology ”St. Ivan Rilski”, Sofia, Bulgaria. – International Conference of EFG Workshop, May 19, 2011, Budapest, Abstracts, European Geologists, 5, p. 26.
  20. Banushev B., St. Pristavova, R. Kostov, R. Pazderov, N. Tzankova, Em. Raeva, Sv. Malinova. 2012. Handbook for educational practices of Mineralogy and Petrography – Publishing house „St. Iv. Rilski”, S., 144 p.
  21. Petrova V., E. Wolf, A. Fidanoska, I Dedov, I. Hadjidimitrov, Ch. Nachev, N. Tzankova, N. 2014. Environnement maturel et utilisation dematières premièresà la findu VI millénaire Chr. à la lumière desétudes de site archéologiqueHadjidimitrovo, Yambol, Bulgarie. – In: L΄Impact antropoloque sur l΄environnement Durant le nèo-ènèolithique du sud – est de L΄Europe (in honorem Dr. Gheorghe Dumitroaia), Piatra – Neamt, Editè par: Constantin Preoteasa & Ciprian-Dorin Nikola, 97-103.
  22. Stavrakeva D., N. Tzankova. 2016. Chemico-mineralogical characterization of ancient slags from Rosen Ore Field. Part 1 – Propadnala voda deposit. – Ann. Univ. Min. Geol., 59, 1, Geol., 55-60 (in Bulgarian with English abstract).
  23. Tzankova N., D. Stavrakeva, P. Leshtakov, K. Dimitrov. 2016. Chemico-mineralogical characterization of ancient slags from Rosen Ore Field. Part 2 – Korucheshme and Rosen deposits, metallurgical center „Atiya“ – Ann. Univ. Min. Geol., 59, 1, Geol., 61-66 (in Bulgarian with English abstract).
  24. Stavrakeva D., N. Tzankova. 2016. Ancient metallurgical slags from the Rossen Ore Region – a potential raw material for the production of copper and lanthanides. – Geology and mineral resources, 6, 36-40 (in Bulgarian with English abstract).
  25. Pazderov R., N. Tzankova, Y. Yordanov, P. Yordanova. 2017. Characterization of silica phases from the region of village Devintzi, Kardzhali District. – Jubilee Scientific Conference 50 Years of Museum Activity in the Eastern Rhodopes – studies, research, perspectives, 17-18 September 2015, conference proceeding 2017, Print, 10-18 (in Bulgarian with English abstract).
  26. Tzankova N. 2017. Analysis of beads from feature 73A.- In: Sarnevo. Pits from the Late Neolithic, the Early and Late Iron Age, and the Roman Period. Volume 1. The Late Neolithic pit field, National Institute of Archaeology and Museum – BAS, Edited by K. Bacvarov, M. Tonkova, and G. Katsarov, 565-570 (in Bulgarian with English abstract).
  27. Tzankova N., M. Vasileva. 2017. Mineralogical and petrographic analysis of malachite containing samples.- In: Sarnevo. Pits from the Late Neolithic, the Early and Late Iron Age, and the Roman Period. Volume 1. The Late Neolithic pit field, National Institute of Archaeology and Museum – BAS, Edited by K. Bacvarov, M. Tonkova, and G. Katsarov, 561-565 (in Bulgarian with English abstract).
  28. Mihaylov Ph., N. Tzankova. 2017. Glass beads from Dren-Delyan necropolis (archaeological and chemical study). – In: Ancient Thrace: Myth and Reality, Abstracts, 13th International Congress of Thracology, September 3-7, 2017, Kazanlak, Bulgaria, p. 264.
  29. Tzankova, N., Philip Mihaylov. 2019. Chemical characterization of glass beads from the necropolis of DrenDelyan (6th–4th century BC), Southwest Bulgaria. – GEOLOGICA BALCANICA, 48 (2), Sofia, August 2019, pp. 31–50.
  30. Pristavova, S., N. Tzankova, N. Gospodinov, P. Filipov. 2019. Petrological study of metasomatic altered granitoids from Kanarata deposit, Sakar Mountain, Southeastern Bulgaria. – Journal of Mining and Geological Sciences, Volume 62, Number 1, 2019, pp. 53-61.
  31. Tzankova, N., D. Stavrakeva. 2020. Mineralogical study of archaeological copper slags found in the area of Krushevets Village, SE Bulgaria. – GEOLOGICA BALCANICA, 49 (2), Sofia, August 2020, pp. 3–23.
  32. Tzankova, N., D. Stavrakeva. 2020. Mineralogical study of archaeological copper slags found in the area of the Boyadzhik village, Yambol region, Southeast Bulgaria. – Journal of Mining and Geological Sciences, Volume 63, 2020, pp. 267-271.
  33. Tzankova N., D. Stavrakeva. 2020. Early mining and metallurgy in the Eastern part of the Srednogorian metallogenic zone. Metallurgical by-products from copper extraction (copper slags) found in the archaeological sites in Burgas and Yambol ore regions (phase chemical and structural characteristics). – Publ. “St. Ivan Rilski”, Sofia, 88 p. (in Bulgarian with English introduction).
  34. Mihaylov, Ph., N. Tzankova. 2022. Glass beads from Dren-Delyan necropolis (archaeological and archaeometric study). In: Delev, P., Stoyanov, T., Yanakieva, S., Popov, H., Bozkova, A., Vassileva, M., Tzvetkova, J., Damyanov, M., Ilieva, P., Emilov, J. (Eds), Ancient Thrace: Myth and Reality. Proceedings of the Thirteenth International Congress of Thracology, Vol. 1, St. Kliment Ohridski University Press, S.,271-278.
  35. Tzankova, N. 2023. LA-ICP-MS study of malachite from copper deposits in the Rosen ore field, Burgas ore district, SE Bulgaria. Geologica Balcanica, 52(1), 3-12.

PROJECTS

  1. Creation of a complex scientific-educational Center for geological and geophysical research. – Contract DОО2-72/11.12.2008.
  2. Early mining and metallurgy in the Eastern part of the Srednogorian metallogenic zone (V millennium BC – I millennium AD). Archaeological, geological, and geophysical studies of ancient mining and metallurgy in the Burgas and Yambol ore districts. – Contract DFNI K02/6 from 12.12.2014. 
  3. Atlas of the Gem and Decorative Minerals in Bulgaria. – Project GPF82/2006;
  4. Gemological identification of the materials from the Academic Museum collection of mineralogy, petrography, and ore deposits. – Project GPF112/2008;
  5. Mineralogical and petrologic characterization of the metasomatically altered granitoid rocks occurring in the North-Northeast rim of the Sakar pluton, SE Bulgaria. – Project GPF127/2009;
  6. Creation of a scientific research laboratory for treatment, analysis, and interpretation of the geological and geophysical data obtained in the Complex scientific-educational Center for Geological and Geophysical Researches in the University of Mining and Geology “St. Ivan Rilski”. – Project GPF-ID001/2009;
  7. Study of jewelry and ornamental minerals from Eastern Rhodopes, Bulgaria. – Project GPF148/2011;
  8. Mineralogical characterization of SiO-phases occurring around Nanovitza village, Eastern Rhodopes, Bulgaria. – Project GPF170/2013;
  9. Mineralogy and microstructural characteristics of jaspers and artifacts from the Eastern Rhodopes. – Project GPF213/2017;
  10. Enrichment of the main fund of the Museum of Geology and Paleontology and the Museum of Mineralogy, Petrography, and Ore deposits with thematic collections from the Balkan and Thracian terrain. – Project GPF235/2021;
  11. Study of mineral artifacts from the Regional Historical Museum – Pernik. – Project GPF239/2022.