Dr. Dan Topa

Position:

Operator for analytical electron microscopy

Contact:

Phone:+43 1 52177-588/267/246

Ausbildung

  • 19.11.2001 Promotion (Mineralogie-Kristallographie) zum Dr. rer. nat.
  • 1997-2001 Dissertation an der Naturwissenschaftlichen Fakultät der Universität Salzburg (Institut für Mineralogie). Titel: "Mineralogy, crystal-structure and crystal-chemistry of the bismuthinite-aikinite series from Felbertal, Austria"
  • 27.06.1990 Nostrifikation des rumänischen akademischen Grades “Diplom in Physik”
  • 15.06.1980 Sponsion zum Mag. rer. nat.
  • 1979-1980 Diplomarbeit an der Universität Bukarest (Fakultät für Physik) Rumänien. Titel: "Delay Line with Acoustic Surface Waves" (translated from Romanian).
  • 1975-1980 Studium der Physik (Festkörperphysik), Universität Bukarest (Fakultät für Physik) Rumänien.

Beruflicher Werdegang

  • seit 01.15.2013 Angestellter am Naturhistorischen Museum Wien, Zentrale Forschungslaboratorien.
  • seit 01.02.2007 - 31.09.2012 Wissenschaftlicher Mitarbeiter (Postdoc) an der Universität Salzburg, Fachbereich Materialforschung und Physik im Christian Doppler Laboratorium: Projekt "Applications of Sulfosalts in Energy Conversion"
  • 01.08.2004 - 30.11.2005 Selbstständige wissenschaftliche Tätigkeit (Postdoc): FWF-Projekt-P17349-N10 "Structural investigation of Bi-based sulfosalts"
  • 15.04.1989 ? 01.08.2004 Wissenschaftliche Mitarbeit in verschiedenen FWF-Projekten an der Universität Salzburg (Institut für Geologie und Institut für Mineralogie): P10275-GEO, P10506-GEO, P11987-GEO, P14028-TEC, P13974-NO6, P15802-NO6

Akademische Lehrtätigkeit

  • 1991-2005 Lehrauftrag "Einführung  in die Elektronenstrahlmikroanalytik“ und  „Einführung in die Bild-Analyse“ an der Universität Salzburg (Institut für Geologie und Institut für Mineralogie)

Original papers in peer-revied scientific journals

 

Makovicky E., Topa D. (2012): Twinnite, Pb0.80Tl0.05Sb1.31As0.80S4.04, the OD character and the question of its polytypism. Z. Kristallogr., 227(8), 468-475.
Topa D., Sejkora, J., Makovicky, E., Pršek, J., Ozdin, D., Putz, H., Dittrich, H. &  Sven Karup-Møller S. (2012): Chovanite, Pb15-2xSb14+2xS36Ox (x ~ 0.2), a new sulfosalt species from the Low Tatra Mountains, Western Carpathians, Slovakia. Eur. J. Mineral., 24(4), 727-740.
Topa D. & Makovicky E.(2012): Structures and classification of indium sulfosalts and the crystal structure of Sn12In19(Se,S)41.Can. Mineral., 50(2), 397-422.
Topa D., Makovicky E. (2012): Eclarite, new data and interpretations. Can. Mineral., 50(2), 371-386.
Ilinca G. Makovicky E., Topa D., Zagler G. (2012): Cuproneyite, Cu7Pb27Bi25S68, a new mineral species from Băiţa Bihor, Romania.  Can. Mineral., 50(2), 353-370.
Jelen S., Prsek J., Kovalenker V.A., Topa D., Ozdin & Seikora J. (2012):  Bismuth sulphosalts from the Banská Štiavnica ? Hodruša ore field: mineralogy and chemical composition. Can. Mineral., 50(2), 325-340.
Topa D., Makovicky E., Ilinca, G., Dittrich H. (2012): Cupromakopavonite, Cu8Pb4Ag3Bi19S38, and the cupropavonite homologous series. Can. Mineral., 50(2), 295-312.
Paar WH., Cooper M., Moelo Y., Stanley C., Putz H., Topa D., Roberts AC., Stirling J. (2012): Eldragonite, Cu2BiSe4(S2), a new selenide species, and its crystal structure, from the El Dragon mine, Potosi, Bolivia. Can. Mineral., 50(2), 281-294.
Makovicky E., Topa D., Tajjedin H., Rastad E. & Yaghubpur A.(2012): The crystal structure of guettardite, PbAsSbS4 and the twinnite-guettardite problem.Can. Mineral., 50(2), 253-265.
Winkler, H.P., Topa D., Keller E. (2012): Pb5In3Bi5S17 and its structural relationship with Pb4In3Bi7S18. Acta Cryst., C68, i45?i49.
Reis I., Krämer V., Seiler A., Topa D., Keller E. (2012): Pb5.0(1)In8.4(1)Bi1.6(1)S20, a new quaternary lead indium bismuth sulfide. Acta Cryst., C68, i12?i16.
Makovicky E., Petricek V., Dusek M. & Topa D. (2011): The crystal structure of franckeite, Pb21.7Sn9.3Fe4Sb8.1S56.9. Am. Mineral. 96(1), 1686-1702.
Stadler A., Schimper, H J., Brendel U., Topa D., Basch A., Dittrich H. (2011): Analysing UV/Vis/NIR Spectra with the single-layer model-Sputtered SnS Thin Films-I: Space-Time Dependencies. Thin Solid Films, 519(22), 7951-7958.
Sostaric S.B., Palinkas L.A., Topa D., Spangenberg J.E., Prochaska W. (2011): Silver-base metal epithermal vein and listwaenite types of deposit Crnac, Rogozna Mts., Kosovo. Part I: Ore mineral geochemistry and sulfur isotope study. Ore Geology Reviews  40(1), 65-80.
Makovicky E., & Topa D. (2011): The crystal structure of gustavite, PbAgBi3S6.  Analysis of twinning and polytypism using the OD approach. Eur. J. Mineral., 23(4), 537-550.
Sejkora, J., Makovicky, E., Topa, D., Putz, H., Zagler G. & Plasil, J. (2011): Litochlebite, Ag2PbBiSe8, a new mineral species from Zalesi, Czech Republic: description and crystal-structure determination. Can. Mineral., 49(2), 639-650.
Stadler A., Störllinger J., Patcher A., Aigner G., Topa D., Dittrich H. (2011): Analysing UV/Vis/NIR Spectra-Sputtered ZnO:Al Thin Films-I: Space-Time Depend. IEEE Transactions on Semiconductor Manufactoring, 24(2), 366-374.
Topa D., Makovicky E., Schimper H.J., Dittrich H. (2010): The crystal structure of the (8;8) homologue of the lillianite homologous series. Can. Mineral., 48(5), 1127-1135.
Topa D., Makovicky E., Schimper H.J., Stadler A., Basch A., Dittrich H., Amthauer G. (2010): The crystal structure of the new compound SnSb4S7, a new member of the meneghinite homologous series. Can. Mineral., 48(5), 1119-1126.
Topa D., Makovicky E., Sejkora J., Dittrich H. (2010): The crystal structure of watkinsonite Cu2PbBi4Se4, from the uranium deposit of Zalesi, Czech Republic.Can. Mineral., 48(5), 1109-1118.
Topa D., Makovicky E. (2010): Crystal-chemistry of cosalite based on new microprobe data and single-crystal structure determination. Can. Mineral., 48(5), 1081-1107.
Topa D., Makovicky E., Dittrich H. (2010): The crystal structure of 7H:12Q cannizzarite from Vulcano, Italy. Can. Mineral., 48(3), 483-495.
Topa D., Makovicky E., Putz H. (2010): The crystal structure of angelaite Cu2AgPbBiS4. Can. Mineral., 48(1), 145-153.
Topa D., Paar W.H., Putz H., Zagler G., Brodtkorb M.K.de, Stanley C.J., Roberts A.C., Makovicky  E. 2010): Mineralogical data on angelaite, Cu2AgPbBiS4, from the Los Manantiales District,Chubut, Argentina. Can. Mineral., 48(1), 139-144.
Paar W.H., Pring, A., MoeloY., Stanley C.J., Putz H., Topa D., Roberts A.C., Braithwaite R.S.W. (2009): Daliranite, PbHgAs2S6, a new sulfosats from the Zarshouran Au-As deposit, Takab region, Iran. Min. Mag., 73(5), 871-881.
Weber S.U., Grodzicki M., Lottermoser W., Redhammer G.J., Topa D., Tippelt G., Amthauer G.
(2008): 57Fe Mössbauer spectroscopy, X-ray single-crystal diffractrometry, and electronic structure calculations on natural sinhalites. Physics and Chemistry of Minerals, 36(5), 259-269.
Dittrich H., Stadler A., Topa D., Schimper H.J. & Basch A. (2009): Progress in sulfosalt research. Phys. Status Solidi A, 206(5), 1034-1041.
Makovicky E., Topa D. (2009): Crystal structures of sulphosalts with box-work architecture and their new representative, ‘Pb15Sb14S36O’. Can. Mineral., 47(1), 3-24.
Mumme W.G., Topa D., Makovicky E. (2009): Proudite ? a redetermination of its crystal structure and the proudite-felbeltalite homologous series. Can. Mineral., 47(1), 25-38.
Paar W.H., MoeloY., Mozgova, N.N., Organova N.F., Kuznetsova O.Y., Roberts A.C., Stanley C.J., Culetto F.J., Effenberger, H.L., Topa D., Putz H., Sureda R.J., Brodtkorb M.K.de (2008): Coiraite (Pb,Sn2+)12.5As3Fe2+Sn4+5S28, a franckeite-type new mineral species and its paragenesis, from the Ag-Sn deposit Pirquitas, Province of Jujuy, NW- Argentina. Min. Mag., 72(5), 1083-1101.
Makovicky E., Petricek V., Dusek M., Topa D. (2008): Crystal structure of  synthetic tin-selenium representative of the cylindrite structure type. Amer. Min., 93(8), 1787-1798.
Topa D., Petricek V., Dusek M., Makovicky E., Balić-Žunić, T.(2008): Simultaneous refinement of two components of an exsolution intergrowth: crystal structure of the lindströmite-krupkaite pair. Can. Mineral., 46(2), 525-539.
Topa D., Makovicky E., Balić-Žunić, T. (2008): What is the reason of the doubled unit cell volumes ofcopper-lead rich pavonite homologues? The crystal structures of cupromakovickyite and makovickyite. Can. Mineral., 46(2), 515-523.
Topa D., Paar H.W. (2008): Cupromakovickyite, Cu8Pb4Ag2Bi18S36, a new mineral of the pavonite homologous series. Can. Mineral., 46(2), 503-514.
Moëlo, Y., Makovicky, E., Mozgova, N.N., Jambor, J.L.; Cook, N., Pring, A., Paar, W.H., Nickel, E.H., Graeser, S., Karup-Møller, S., Balic-Žunic, T., Mumme, W.G., Vurro, F., Topa, D., Bindi, L., Bente, K., Shimizu, M. (2008): Sulfosalt systematics: a review. Report of the sulfosalt sub-committee of the IMA Commission on Ore Mineralogy. European Journal of Mineralogy, 20(1), 7-62.
Redhammer G.J., Roth G., Topa D., Amthauer G. (2008): Synthetic aenigmatite analog Na2(Mn5.26Na0.74)Ge6O20: structure and crystal chemical considerations.Acta Cryst. C64, i21?i26.
Dittrich H., Bieniok A., Brendel U., Grodzicki M., Topa D. (2007): Sulfosalts - A new class of compound semiconductors for photovoltaic application. Thin Solid Films, 515, 5745-5750.
Putz H., Paar W.H., Topa D., Makovicky E., Roberts A.C. (2006): Catamarcaite, Cu6GeWS8, a new germanium-tungsten sulphide from Capillitas, Catamarca, Argentina: description, paragenesis and crystal structure. Can. Mineral., 44(6), 1481-1497.
Makovicky E., Topa D., Mumme G.W. (2006): The crystal structure of dadsonite. Can. Mineral., 44(6), 1499-1512.
Graeser S., Topa D., Balić-Žunić, T., E. Makovicky E. (2006): Gabrielite, Tl2AgCu2As3S7, a new species of thallium sulfosalt from Lengenbach, Switzerland. Can. Mineral., 44(1), 135-140.
Paar W.H., Putz H., Topa D., Roberts A.C., Culleto F.J. (2006): Jonassonite, Au(Bi,Pb)5S4, a new mineral species from Nagyborzsony, Hungary. Can. Mineral., 44(5), 1127-1136.
Topa D., Makovicky E., Balić-Žunić, T.(2006): The crystal structures of jagueite, Cu2Pd3Se4, and chrisstanleyite, Ag2Pd3Se4. Can. Mineral., 44(2), 497-505.
Topa D., Makovicky E. (2006): The crystal structure of paděraite, Cu7(X0.33Pb1.33Bi11.33)Σ 13S22, with X=Cu or Ag; new data and interpretation.  Can. Mineral., 44(2), 481-495.
Topa D., Makovicky E., Putz H., Mumme G.W. (2006): The crystal structure of berryite, Cu3Ag2Pb3Bi7S16. Can. Mineral., 44(2), 465-480.
Topa D., Paar H.W., Balić-Žunić, T.(2006): Emilite, Cu10.72Pb10.72Bi21.28S48, the last missing link of the bismuthinite-aikinite series?. Can. Mineral., 44(2), 459-464.
Topa D., Makovicky E., Balić-Žunić, T.(2005): Mineralogical data on salzburgite and paarite, two new members of the bismuthinite-aikinite series. Can. Mineral., 43(3), 909-917.
Paar W.H., Topa D., Makovicky E., Culleto F.J. (2005): Milotaite, PdSbSe, a new palladium mineral, from Predborice, Czech Republic. Can. Mineral., 43(2), 689-694.
Paar W.H., Topa D., Makovicky E., Sureda R.J., Brodtkorb M., Nickel E., Putz H. (2004): Jagueite, Cu2Pd3Se4, a new mineral species, from El Chire, La Rioja, Argentina. Can. Mineral., 42(6), 1745-1755.
Paar W.H., Roberts A.C., Berlepsch P., Armbruster T., Topa D., Zagler G. (2004): Putzite, (Cu4.7Ag3.3)8GeS6, a new mineral species from Capillitas, Catamarca, Argentina: description and crystal structure. Can. Mineral., 42(6), 1757-1769.
Shcheka GG, Solianik AN, Lehmann B, Topa D. (2004): Euhedral crystals of ferroan platinum,cooperite and mertieite-II from alluvial sediments of the Darya river, Aldan Shield, Russia. Min. Mag., 68(6), 871-885.
Topa D., Makovicky, E. & Balić-Žunić, T.(2003): Crystal structures and crystal  chemistry of the members of the cuprobismutite homologous series. Can. Mineral., 41(6), 1481-1501.
Topa D., Makovicky, E., & Balić-Žunić, T., Paar, W.H. (2003): Kupcikite, Cu3.6Fe0.4Bi5S10, a new Cu-Bi sulfosalt from Felbertal, Austria. Can. Mineral., 41,(5), 1155-1166.
Putz H., Paar W.H., Topa D., Horner J. & Lüders V. (2003): Structurally controlled gold and sulfosalts mineralization: The  Altenberg example, Salzburg, Austria. Miner. Petrol., 78(1-2): 111-138.
Borodaev, Yu.S., Garavelli, A., Garbarino, C., Grillo, S.M., Mozgova, N.N., Paar, W.H., Topa D. & Vurro, F. (2003): Rare sulfosalts from Vulcano, Aeolian Islands, Italy. V. Selenian heyrovskyite. Can. Mineral., 41, 429-440.
Berlepsch, P., Armbruster, T., Makovicky, E., Topa D. (2003): Another step towards understanding the true nature of sartorite:determinarion and refinement of a nine-fold superstructure. Amer. Min., 88, 450-461.
Topa D., Makovicky, E., Balić-Žunić, T. (2002):  The structural role of excess Cu and Pb in gladite and krupkaite based on new structure refinements. Can. Mineral., 40, 1147-1159.
Berlepsch, P., Armbruster, T., Topa D. (2002): Structural and chemical variations of rathite, Pb8Pb4-x(Tl2As2)x(Ag2As2)As16S40: modulations of a parent structure. Z. Kristallorgr., 217, 1-10.
Topa D., Makovicky, E., Paar, W.H. (2002):  Compositional ranges and exolution pairs for the members of the bismuthinite-aikinite series from Felbertal, Austria. Can. Mineral.,  40, 849-869.
Effenberger, H., Paar, W.H., Topa D., Criddle, A.J. and Fleck, M. (2002): The new mineral baumstarkite and a structural reinvestigation of aramayoite and miargyrite. Amer. Min., 87, 753-764.
Balić-Žunić, T., Topa D., Makovicky, E. (2002):  The crystal structure of  emilite Cu10.7Pb10.7Bi21.3S48, the second 45 Å derivative of the bismuthinite-aikinite solid solution series. Can. Mineral.,  40, 239-245.
Paar, W.H., Topa D., Roberts, A.C., Criddle, A.J., Amann, G. & Sureda, RJ. (2002): The new mineral  brodtkorbite, Cu2HgSe2, and the associated selenide assemblage from Tuminico, Sierra de Cacho, La Rioja, Argentina. Can. Mineral., 40, 225-237.
Roberts, A.C., Paar, W.H., Cooper, M.A., Topa D., Criddle, A.J., Jedwab, J. (2002): Verbeekite, monoclinic PdSe2, a new mineral from the Musonoi Cu-Co-Mn-U mine, Kolwezi, Shaba Province, Congo. Mineral. Mag., 66/1, 173-179.
Berlepsch, P., Armbruster, T., Makovicky, E, Hejny, C., Topa D., Graeser, S. (2001): The crystal structure of a  (001) twinned xilingolite, Pb3Bi2S6 from Mittal-Hohtenn, Valais, Switzerland. Can. Mineral. 39, 1653-1663.
Paar WH, de Brodtkorb MK, Sureda RJ, Topa D. (2001): Mineralogy and chemistry of tin and lead sulfides and sulfosalts in the Pirquitas Mine vein deposit, Jujuy, Argentina (22 degrees 41'S-66 degrees 28'W). Revista Geologica de Chile, 28(2), 259-268.
Makovicky, E., Balić-Žunić, T., Topa D. (2001):  The crystal structure of neyite, Ag2Cu6Pb25Bi26S68. Can. Mineral., 39, 1365-1376.
Makovicky, E., Topa D., Balić-Žunić, T. (2001):  The crystal structure of  paarite, the newly 56 Å derivative of the bismuthinite-aikinite solid solution series. Can. Mineral., 39, 1377-1382.
Topa D., Makovicky, E., Criddle, A.J., Paar, W.H., Balić-Žunić, T. (2001):  Felbertalite, Cu2Pb6Bi8S19, a new mineral from the Felbertal scheelite deposit, Austria. Eur. J. Mineral., 13, 961-972.
Berlepsch, P., Miletich, R., Makovicky, E, Balić-Žunić, T., Topa D.  (2001): The crystal structure of synthetic Rb2Sb8S12*(S2)*2H2O,a new member of the hutchinsonite family of merotypes. Z. Kristallogr., 216, 272-277.
Topa D., Makovicky, E., Balić-Žunić, T., Berlepsch, P. (2000): The crystal structure of Cu2Pb6Bi8S19. Eur. J. Mineral., 12, 825-833.                                            
Topa D., Balić-Žunić, T.,  Makovicky, E. (2000):  The crystal structure of Cu1.6Pb1.6Bi6.4S12, a new 44.8 Å derivative of the bismuthinite-aikinite solid solution series. Can. Mineral., 38, 611-616.
Paar, W.H., Miletich, R., Topa D.,  Criddle, A.J., Brodtkorb, M.K. de, Amthauer, G., Tippelt, G. (2000): Suredaite, PbSnS3, a new mineral species from the Pirquitas Ag-Sn deposit, NW-Argentina: mineralogy and crystal structure. Amer. Min., 85, 1066-1075.
Effenberger, H., Culetto, F.J., Topa D.,  Paar, W.H. (2000): The crystal structure of synthetic buckhornite [Pb2BiS3][AuTe2]. Z. Kristallorgr., 215, 10-16.
Koroknai, B., Neubauer, F., Genser, J.H., Topa D. (1999): Metamorphic and tectonic evolution of the Austroalpine units at the western margin of the Gurktal Nappe Complex, Eastern Alps. Schweiz. Mineral. Petrogr. Mitt., 84, 277-295.
Effenberger, H., Paar, W.H., Topa D., Culetto, F.J., Giester, G. (1999):  Toward the crystal structure of nagyagite [Pb(Pb,Sb)S2][(Au,Te)]. Amer. Min., 84, 669-676.
Paar, W.H., Roberts, A.C., Criddle, A.J., Topa D. (1998):  A new mineral, chrisstanleyite, Ag2Pd3Se4, from Hope`s Nose Torquay, Devon, England. Min. Mag., 62(2), 257-264.
Marschallinger, R., Topa D. (1997): Assessment and correction of geometric distorsions in low-magnification scanning electron microscopy images. Scanning 19, 36-41.
Nistor, LC., Teodorescu, V., Topa, V., Topa, D., Nistor, SV. (1987): Spatial arrangement of Ag colloids in KCl-Ag. Crystal lattice defects and Amorphous materials. 16(1-4), 63-68.

 

Abstracts

Topa D., & Makovicky E. (2006): The crystal structure of a new synthetic In-based phase, Sn12In19(S, Se)41, modular description and prediction of synthetic In-based families.1stCentralEuropean Mineralogical Conference, September, 12-14, 2006, Vyšná Boca, Slovakia, Slovakia.
Paar WH., Putz H., Topa D., Sureda RJ., Brodtkorb M., Lüders V. (2006): Breccias with high-grade Ag-Sn mineralization at Pirquitas, Argentina. O16-08, 19th IMA Meeting, Kobe, Japan, Abstracts, 193.
Robl K., Paar WH., Topa D., Putz H., Sureda RJ., Brodtkorb M. (2006): Ore mineralogy of a high-grade epithermal  silver mineralization at El Quevar, Argentina. P16-01, 19th IMA Meeting, Kobe, Japan, Abstracts, 196.
Putz H., Paar WH., Topa D. (2006): Microparagenesis of germanium mineralization in polymetallic

deposits of Bolivia and Argentina. P16-02,19th IMA Meeting, Kobe, Japan, Abstracts, 196.
Iancu, OG., Ionescu, C., Topa, D. (2005):Petrological and geochemical classification of the Sopot chondrite. Meteoritics & Planetary Science (September 2005), 40, Suppl. A71
Makovicky, E., Topa D., Balic-Zunic, T., Dubost, V., Karup-Møller, S. (2005):On crystal chemistry of palladium and some new Pd chalogenides. 10th International Platinum Symposium - extended abstracts. 462-463. Törmänen, T.O. & Alapieti, T.T. (eds). Espoo, Finland.
Grodzicki M., Topa D., Bieniok A., Redhammer G., Lottermoser W., Amthauer G. (2005): Geometric, electronic and magnetic structure of ludlamite. In: Supplement Issue of Zeitschrift für Kristallographie, 22. München: Oldenburg Verlag, 24 . Abstractband zur Jahrestagung der DGK und GKK an der Universität Köln, 28.2.-4.3.2005.
Grodzicki M., Topa D., Bieniok A., Redhammer G., Lottermoser W., Paar W., Amthauer G. (2004): Electronic and magnetic structure of ludlamite: spectroscopic and theoretical investigations. 32nd IGC, Firenze, Abstracts, Part 1: 549.
Paar W., Putz H., Topa D., Zambrana Mogro J. (2004): High grade silver-germanium mineralization at Porco, Department of Potosi, Bolivia. 32nd IGC, Firenze, Abstracts, Part 2: 1068.
Paar W., Topa D., Robl K., Amann G. (2004): Tellurides related to gold mineralization of Salzburg province, Austria. 32nd IGC, Firenze, Abstracts, Part 1: 272.
Paar W., de Brodtkorb M., Topa D., Sureda R. (2004): Palladium, platinum, gold and silver in selenide districts of NW-Argentina. 32nd IGC, Firenze, Abstracts, Part 1: 277.
Topa D., Makovicky E., Paar W. (2004): A closer look at the nature of modularity in the pavonite homologous series. 32nd IGC, Firenze, Abstracts, Part 1: 306.
Topa D., Makovicky E., Paar W., de Brodtkorb M. (2004): The crystal structure of Angelaite, Cu2AgPbBiS4, a new mineral species from the Angela mine, Province of Chubut, Argentina. 32nd IGC, Firenze, Abstracts, Part 1: 217.
Daniela Pinto, Dan Topa, and Emil Makovicky (2004): Description of "Phase V" as a combination of modules from the pavonite and lillianite homologous series (in Italia 2004; 32nd international geological congress; abstracts, Anonymous,) International Geological Congress,(August 2004), 32, Part 1 310.
Putz H., Paar W., Horner J., Topa D. (2003): Structurally controlled (Au-Ag) mineralization in the Altenberg-Silbereck area, Salzburg Province, AustriaPoster anläßlich des Symposiums "Rohstoffe im Dienste der Gesellschaft", Wien, ÖAW, 7.11.2003.
Neubauer, F., Handler, R., Friedl, G., Genser, J. & Topa, D. (2003): Sandstone composition and 40Ar/39Ar single grains ages of detrital mica from the central Rhenodanubian Flysch Zone, Eastern Alps: preliminary results and significance for Alpine tectonics. TRANSALP Conference,Trieste, 10-12 Feb. 2003, 221-224.
Galina G. Shcheka, Alexander N. Solianik, Bernd Lehmann, Anna Bieniok, and Dan Topa (2003): Euhedral crystals of ferroan platinum, cooperite and palladian antimonide from the Darya Placer, Aldan Shield, Russia (in Geological Society of America, 2003 annual meeting, Anonymous,)

Abstracts with Programs - Geological Society of America, 35(6),230.
Ionescu, C., Hock, V. and Topa D. (2003): Alteration processes on basalts from the Transylvanian Depression, Romania (deep well 6042-Deleni) (in 2nd international conference on Mineral sciences in the Carpathians, Anonymous, Acta Mineralogica-Petrographica. Abstract Series (2003), 1, 47.
Topa, D., Makovicky, E., Paar, W.H. & Balić-Žunić, T. (2002): The crystal structures of Cu2Pd3Se4 and Ag2Pd3Se4, chrisstanleyite. IMA Meeting, Edinburgh, UK, Abstracts Vol, 274.
Topa, D., Makovicky, E., Balić-Žunić, T. & Paar, W.H.  (2002): Chemistry and crystal structures of the members of the bismuthinite-aikinite series  from Felbertal, Austria. IMA Meeting, Edinburgh, UK, Abstracts Vol., p 264.
Ciobanu, C.L., Cook, N.J., Topa, D., Bogdanov, K., Merkle, R.K.W. (2002): Compositional variance in the cuprobismutite series and related (Pb-bearing) padĕraite: insights from new occurrences.  IMA Meeting, Edinburgh, UK, Abstracts Vol., p 264.
Garavelli, A., Borodaev, Yu.S., Mozgova, N.N., Paar, W.H., Topa, D., Vurro, F. (2002): Ag-free Se-heyrovskyite, Pb6Bi2S9, from Vulcano Island, Italy. IMA Meeting, Edinburgh, UK, Abstracts Vol, 284.
Makovicky,  E., Balic-Zunic, T., Karanovic, L., Poleti, D. & Topa, D. (2002): Crystal structure of Tl6Ag2.2Cu6.8As9S21. Acta Cryst. (2002). A58 (Supplement), C336.
Makovicky, E., Balić-Žunić, T., Topa, D. (2001): The bismuthinite-aikinite series: A new portrait of an old series. 3rd EMU Workshop, Lübeck, Gremany, Abstracts volume: 27.
Effenberger, H., Fleck, M., Paar, W.H., Topa, D., Criddle, A.J. (2000): The new mineral baumstarkite and centrosymmetry of aramayoite and miargyrite. 4th International Mineralogy in Museums Conference, Melbourne, Australia.
Makovicky, E., Topa D., Balic-Zunic, T. (2000): New concepts of modular crystallography derived from the latest sulfosalt structures.  31. Danske Krystallografmøde, Kemisk Institut, Københavns Universitet. P32. København 2000.
Makovicky, E., Topa, D., Balić-Žunić, T., 2000: New concepts of modular crystallography derived from the latest sulfosalts. 31st International Geological Congress. Rio de Janeiro, Brazil.
F. Neubauer, R. Handler, G. Friedl, J. Genser, and D. Topa (2000): Detrital mode of sandstones and 40Ar/ 39Ar ages of detrital mica from the Rhenodanubian flysch zone, Eastern Alps; significance for Alpine paleogeography (in Sediment 2000; abstracts). Mitteilungen der Gesellschaft der Geologie- und Bergbaustudenten in Oesterreich (2000), 43 98-99
Effenberger, H., Giester, G., Culetto, F.J.,  Paar, W.H., Topa, D. (1999): Structural relations between nagyagite and buckhornite. 17th Congress and Gen. Assem. of the Inter.Union of  Crystallography, Glasgow. Abstracts volume: 455.
Franz Neubauer, Robert Handler, Gertrude Friedl, Johann Genser, and Dan Topa (1999): Detrital mode and 40Ar/ 39Ar ages of detrital mica from the Rhenodanubian flysch zone, Eastern Alps; significance for Alpine tectonics (in 4th workshop on Alpine geological studies). Tuebinger Geowissenschaftliche Arbeiten. Reihe A, Geol., Palaeont., Stratigraphie (1999), 52 190
Franz Neubauer, Sylke Hilberg, Robert Handler, and Dan Topa (1999): Evidence for Jurassic subduction in the Northern Calcareous Alps; the tale of the Florianikogel Formation (in 4th workshop on Alpine geological studies). Tuebinger Geowissenschaftliche Arbeiten. Reihe A, Geol., Palaeont., Stratigraphie (1999), 52 105
Detlef Schneider, Franz Neubauer, Johann Genser, Robert Handler, and Dan Topa (1998): New 40Ar/ 39Ar ages and geochemical data from the molasse zone north of Salzburg (Upper Austria) (in Transect through the central Eastern Alps; field trip pre-1; 24 August-29 August 1998). Geological Survey of Austria, Vienna, Austria (1998) 45-48
Topa, D., Paar, W.H. (1998): New data on the mineralogy of sulphosalts from the Felbertal scheelite deposit, Austria. IMA Meeting, Toronto, Canada, Abstracts Volume, A 126.
Paar, W.H., Topa D. (1998): Mineralogie und Bildungsbedingungen von Glaserz der Tauerngoldgänge.

Mitt. Österr. Min. Ges., 143, 359-361.
Effenberger, H., Paar, W.H., Topa, D., Culetto, F.J., Giester, G. (1998):  Toward the crystal structure of nagyagite IMA Meeting, Toronto, Canada, Abstracts Volume, A 57.
Paar, W.H., Brodtkorb, M.K. de, Topa, D., Sureda, R.J. (1998): A microprobe study of complex Ag-Sn ores from Pirquitas, Juyuy Province, Argentina. IMA Meeting, Toronto, Canada, Abstracts Volume, A 118.
Paar, W.H., Brodtkorb, M.K. de, Topa, D. (1998): Los telururos de oro y plata de la mina la Mejicana, Provincia de la Rioja, Argentina.  IV Reunion de Mineralogia y Metalogenia.MINPET 98-ENIUNS, 207-211.
Neubauer, F., Handler, R., Mader, D., Topa, D. (1998): The Paleozoic Evolution of the Eastern Alps Seen through 40Ar/39Ar Ages of Detrital Mica, Sandstone Mode and Geochemistry. CBGA Conference, Wien.
Schneider, D., Neubauer, F., Koroknai, B., Genser, J., Handler, R. & Topa, D. (1998): New 40Ar/39Ar ages and geochemical data from the Molasse zone north of Salzburg (Upper Austria). ? XVI Congress of the Carpathian-Balkan Geological Associationin; Field Trip Pre1"Transsect through central Eastern Alps". pp. 45-48.
Neubauer, F., Koroknai, B., Genser, J., Handler, R. & Topa, D. (1998): Middle and Upper Austroalpine units of the Gurktal Mountains/Nock region. - XVI Congress of the Carpathian-Balkan Geological Associationin; Field Trip Pre1 "Transsect through central Eastern Alps".  pp. 85-101.
Paar, W.H., Sureda, R.J., Topa, D., Amann, G. (1998): New data on selenide district of Sierra de Umango, Province of La Rioja, Argentina. Abstract; 16 Geowissenschaftl. Lateinamerika-Kolloquium (Bayreuth); Terra Nostra 98/5, 117.
Paar, W.H., Brodtkorb, M.K. de, Topa, D., Ametrano, S. (1997): Cu-Ag veins of La Mejicana Ore District,

Argentina 4th  Biennial SGA  Meeting; Extended Abstracts.
Paar, W.H., Brodtkorb, M.K. de, Topa, D., Sureda, R.J. (1996): Caracterizacion mineralogica y quimica de algunas especies metaliferas del yacimiento Pirquitas, Provincia de Jujuj, Rep. Argentina. Parte 1, XIII Congreso Geologico, Actas III, 141-158
S. Udubasa, F. Neubauer, and D. Topa (1995): Thermobarometric estimations on rocks of the Cumpana Group, Southern Carpathians, Romania (in Proceedings of the international conference on Thermal and mechanical interactions in deep-seated rocks, Anonymous,) Journal of the Czech Geological Society (1995), 40(3):50
S. Udubasa, F. Neubauer, and D. Topa (1995): Prehnite in amphibolites of the Cumpana Group, Fagaras Mts (in Third symposium on Mineralogy; abstracts volume) Romanian Journal of Mineralogy (1995), 77(1, Suppl.):48
G. Udubasa and D. Topa  (1995): Arsenopyrite composition, microinclusions, and parageneses, Costesti gold occurrence, Capatana Mts (in Third symposium on Mineralogy; abstracts volume)

Romanian Journal of Mineralogy (1995), 77(1, Suppl.):47-48
F. Neubauer, D. Topa, and V. Hoeck (1993): Conditions of eclogite formation within the Monotonous unit, southeastern Bohemian Massif (in Final conference of the national research project; Pre-Alpine crust in Austria). Mitteilungen der Oesterreichischen Mineralogischen Gesellschaft (1994), 139 97-98
Marschallinger, R., Höck, V., Topa, D. (1993): Three dimensional reconstuction of chemicaly zoned minerals by geostatistical interpolation of microprobe analysed serial section. Electron Microscopy, vol. 1, EUREM 92 Granada, Spain, p.449.
Topa, D., Marschallinger, R., Höck, V. (1993): Image analysis in metamorphic rocks ? examples from the Moravian zone in Austria. Electron Microscopy, vol. 2, EUREM 92 Granada, Spain, p.60.
V. Hoeck, R. Marschallinger, and D. Topa (1990): PT-evolution in metapelites of the Moravian Zone of Austria (in Terranes in the Circum-Atlantic Paleozoic orogens; international conference on Paleozoic orogens in central Europe). Int. Geol. Correl. Prog., Federal Republic of Germany (1990)
V. Hoeck, R. Marschallinger, and D. Topa (1990): Garnets in the Moravian zone of Austria (in 3. Symposium fuer Tektonik, Strukturgeologie, Kristallingeologie im deutschsprachigen Raum; Kurzfassungen der Vortraege und Poster Arbeiten aus dem Geologisch-Palaeontologischen Institut Graz (1990), 593 94-95
V. Hoeck, R. Marschallinger, and D. Topa (1990): Garnet biotite geothermometry in metapelites of the Moravian zone of Austria (in Initial report over the gravity center project S 47-GEO; pre-alpidic crusts in Austria). Oesterreichische Beitraege zu Meteorologie und Geophysik (1990), 3 149-167.