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Urs KLÖTZLI, Ao. Univ. Prof. Mag. Dr.

urs.kloetzli@univie.ac.at
Room Number: 2A474
Tel.: +43-1-4277-53460
Mobile: +43-680-5533-860

Research Interests:

  • Development and improvement of micro-analytical techniques for isotope analysis in geological materials with a special emphasis on high-precision Laser-Ablation MC-ICP-MS and SIMS U-Th-Pb dating techniques.
  • Radiometric dating and the derivation of the duration of geological events and processes with a main focus on the orogenic and anorogenic formation and evolution of continental crust.
  • Petrochronology: Linking radiometric age information with metamorphic processes; analytical issues, theory and applications.

Current Projects:

  • Development of U-Th-Pb in-situ dating techniques (LA-MC-ICP-MS, SIMS, LASS) for xenotime.
  • Advancing the petrochronology of temperature-dominated metamorphic processes by testing and enhancing the consistency and reproducibility of accessory mineral in-situ U-Th-Pb dating and petrology. -> references
  • Development of a tool-box to understand the petrochronological evolution of metabasic rocks by combining petrology with in-situ U-Th-Pb geochronology. -> references
  • Petrochronology of hight temperature metamorphism; the age, duration and rates of metamorphic processes in the lower continental crust.
  • Geochronological and isotope geochemical aspects of the interaction of mantle and lower crustal processes in the Ivrea-Verbano Zone, Southern Alps, Italy. -> references
  • Geochronology and isotope geochemistry of pre-Variscan plutonism in the Austroalpine Ötztal-Stubai complex, Eastern Alps, Austria.
  • Modelling of isotope fractionation effects in geomaterials.
  • Other running projects (mainly geochronologically oriented) are located in Thailand, Carpathians, Cameroon, Turkey, ...


Professional affiliations:

  • Member of the Swiss Society of Mineralogy and Petrology
  • Member of the Geological Society of America
  • Member of the American Geophysical Union
  • Member of the European Asscociation for Geochemistry


Professional activities:

  • Reviewer for Chemical Geology
  • Reviewer for Journal of Petrology
  • Reviewer for International Journal of Earth Sciences
  • Reviewer for Lithos
  • Reviewer for Mineralogy and Petrology
  • Reviewer for the Swiss Journal of Geosciences
  • Reviewer for the Austrian Journal of Earth Sciences
  • Reviewer for the Bulletin of the Swiss Society of Mineralogy and Petrology
  • Reviewer for Geologica Carpathica
  • Rewiever for the Journal of Analytical Atomic Spectrometry
  • Member of the editorial board of the Central European Journal of Geosciences

Publications:

Sortieren: Datum | Autor | Titel

Acharya, K. K. V., Kloetzli, U., Thöni, M., & Grasemann, B. (2007). Mineral chemistry and radiogenic isotopic systematics (U-Pb, Rb-Sr, Sm-Nd) in granitic gneiss from Galci (Kathmandu) area, Central Nepal. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 153.
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Haider, V., Kloetzli, U., Brewer, T. S., Parrish, R., & Horstwood, M. S. (2007). The U/Pb zircon age, geochemical and petrological characteristics of porphyric dykes ("Rojen dyke swarm") from the Austroalpine Ötztal nappe in the area of Zehnerkopf and Vallungsspitz (South Tyrol/Italy). Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 153.
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Kloetzli, U. (2007). The South Bohemian Pluton: A review on a multi-composite batholith within the Central European Variscan Belt. Mineralogia - Special Papers, 31, 27-29.
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Kloetzli-Chowanetz, E., & Kloetzli, U. (2007). Small melt pockets in big migmatites: evidence of in-situ partial melting. Mineralogia Polonica, Special Papers, 31.
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Kloetzli, U., Hochleitner, R., & Kosler, J. (2007). Lower Triassic mantle-derived magmatism in the Ivrea-Verbano Zone: Evidence from laser ablation U-Pb dating of a pegmatite from the eastern Finero Complex (Switzerland). Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 153.
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Haider, V., Parrish, R., Kloetzli, U., Horstwood, M. S., & Brewer, T. S. (2007). The U-Pb age of one type of porphyric dykes ("Rojen dyke swarm") in the Ötztalnappe (Austroalpine) in the area of Zehnerkopf and Vallungsspitz (South Tyrol/ Italy). Geophysical Research Abstracts (GRA), Vol. 9(07409), 1-2.
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Boulyga, S. F., Kloetzli, U., & Prohaska, T. (2007). Uranium isotope ratios determined by MC-ICP-MS and the assessment of total combined uncertainty budgets. Goldschmidt Conference Abstracts, A113.
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Günes, Z., Kloetzli, U., & Sinigoi, S. (2007). Further evidence for a two stage magmatic underplating event in the Ivrea-Verbano Zone, Italy. Goldschmidt Conference Abstracts, A362.
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Kloetzli, U., Kloetzli-Chowanetz, E., & Kosler, J. (2007). External accuracy of laser ablation U-Pb zircon dating: results from a test using five different standards. Goldschmidt Conference Abstracts, A495.
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Kloetzli-Chowanetz, E., Kloetzli, U., & Kosler, J. (2007). A possible laser ablation xenotime U-Pb age standard: reproducibility and accuracy. Goldschmidt Conference Abstracts, A495.
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Günes, Z., Kloetzli, U., & Sinigoi, S. (2007). Magmatic underplating, a single or multistage mechanism? New evidence from the Ivrea-Verbano Zone, Italy. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 153.
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Tumiati, S., Godard, G., Martin, S., Kloetzli, U., & Monticelli, D. (2007). Fluid-controlled crustal metasomatism within a high-pressure subducted mélange, Mt. Hochwart, Eastern Italian Alps). Lithos, 94(1-4), 148-167.
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Faupl, P., Pavlopoulos, A., Kloetzli, U., & Petrakakis, K. (2006). On the provenance of mid-Cretaceous turbidites of the Pindos zone (Greece): Implications from heavy mineral distribution, detrital zircon ages and chrome spinel chemistry. Geological Magazine, 143(3), 329-342.
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Teschler-Nicola, M., Horschinegg, M., & Kloetzli, U. (2006). Non Destructive Determination of 87Sr/86Sr Isotope Ratios in Early Upper Paleolithic Human Teeth from the Mladec Caves - Preliminary Results. In. M. Teschler-Nicola (Ed.), Early Modern Humans at the Moravian Gate. The Mladec Caves and their Remains (pp. 505-514). Springer.
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Boulyga, S. F., Kloetzli, U., & Prohaska, T. (2006). Improved abundance sensitivity in MC-ICP-MS for determination of 236U/238U isotope ratios in the 10-7 to 10-8 range. Journal of Analytical Atomic Spectrometry, 21, 1427-1430. DOI: 10.1039/B608983F
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Shalaby, A., Stüwe, K., Makroum, F., Fritz, H., Kebede, T., & Kloetzli, U. (2005). The Wadi Mubarak belt, Eastern Desert of Egypt: A Neoproterozoic conjugate shear system in the Arabian-Nubian Shield. Precambrian Research, 136(1), 27-50.
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Tropper, P., Kloetzli, U., Finger, F., & Mirwald, P. W. (2005). Geochronological Evidence for Lower Ordovician Magmatism in the Crystalline Nappes North of the Tauern Window. Geophysical Research Abstracts (GRA), Vol. 7(05347), 1-4.
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Marocchi, M., Bargossi, G. M., Kloetzli, U., Mair, V., & Morelli, C. (2005). Zircon geochronology, geochemistry and a new stratigraphic systematic of the Lower Permian Athesian Volcanic Group (AG), Southern Alps (Italy). Italian Geological Congress (GEOITALIA).
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Kebede, T., Kloetzli, U., & Pestal, G. (2005). Variscan and pre-Variscan basement units in the central Tauern Window (Austria): constraints from single zircon U-Pb geochronology. Geophysical Research Abstracts (GRA), Volume 7(05347), 1-4.
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Kebede, T., Kloetzli, U., Kosler, J., & Skiöld, T. (2005). Understanding the pre-Variscan and Variscan basement components of the central Tauern Window, Eastern Alps (Austria): Constraints from single zircon U-Pb geochronology. International Journal of Earth Sciences, 94(3), 336-353.
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Bargossi, G. M., Kloetzli, U., Mair, V., Marochi, M., & Morelli, C. (2004). The Lower Permian Athesian Volcanic Group (AVG) in the Adige Valley between Meran and Bolzano: A stratigraphic, petrographic and geochronological outline. IGC32, Florence, Italy, 35(15).
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Lelkes-Felvari, G., & Kloetzli, U. (2004). Zircon geochronology of the "KeŽkkuŽt quartz porphyry", Balaton Highland,Transdanubian Central Range, Hungary. Acta Geologica Hungarica, 47(2-3), 139-149.
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Kloetzli, U., Buda, G., & Skiöld, T. (2004). Zircon typology, geochronology and whole rock Sr-Nd isotope systematics of the Mecsek Mountain granitoids in the Tisia Terrane (Hungary). Mineralogy and Petrology, 81(1-2), 113-134.
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Katongo, C., Koller, F., Kloetzli, U., Köberl, C., Tembo, F., & De Waele, B. (2004). Petrography, geochemistry, and geochronology of granitoid rocks in the Neoproterozoic Lufilian-Zambesi belt, Zambia: Implications for tectonic setting and regional correlation. Journal of African Earth Sciences, 40(5), 219-244. DOI: 10.1016/j.jafrearsci.2004.12.007
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Kloetzli, U., Finger, F., & Tropper, P. (2004). Zirkon- und Monazitalter des Kellerjochgneises (nördliches Zillertal, Tirol, Ostalpen). In B. Hubmann (Ed.), Pangeo Austria 2004 : "Erdwissenschaften und Öffentlichkeit"; Graz, 24. - 26. September 2004; Beitragskurzfassungen (Vol. 9, pp. 436). Graz: Inst. für Erdwissenschaften, Bereich Geologie und Paläontologie, Karl-Franzens-Univ. Graz.
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Kebede, T., Kloetzli, U., & Pestal, G. (2003). Single zircon U-Pb geochronology of pre-Variscan and Variscan basement units of the central Tauern Window, Eastern Alps (Austria). Mitteilungen der Österreichischen Mineralogischen Gesellschaft, (148), 182-184.
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Kloetzli, U., Mair, V., & Bargossi, G. M. (2003). The "Bozener Quarzporphyr" (Southern Alps, Italy): Single zircon U/Pb age evidence for 10 million years of magmatic activity in the Lower Permian. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, (148), 187-188.
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Buda, G., & Kloetzli, U. (2003). A Mecsek hegységi granitoid kora. Unknown Journal, 11.
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Bregar, M., Bauernhofer, A., Pelz, K., Kloetzli, U., Fritz, H., & Neumayr, P. (2002). A late Panafrican magmatic core complex in the Eastern Desert of Egypt: Emplacement of granitoids in a shear extensional regime. Precambrian Research, (118), 59-82.
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Kloetzli, U., Koller, F., & Scharbert, S. (2002). Cadomian lower-crustal contributions to variscan granite petrogenesis (South Bohemian Pluton, Austria): A reply. Journal of Petrology, 43(9), 1783-1786.
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Miller, C., Kloetzli, U., Frank, W., Thöni, M., & Grasemann, B. (2002). Comment on 'Geochemistry of the 2.51 Ga old Rampur group pelites, western Himalayas: Implications for their provenance and weathering' by Bhat and Gosh 2001. Precambrian research 108, 1-16. Precambrian Research, 116(1-2), 155-156.
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Kloetzli, U., Höck, V., & Kebede, T. (2001). Die Alterstellung der Habach-Gruppe im zentralen Tauernfenster: eine kurze Diskussion. Berichte des Instituts für Geologie und Paläontologie der Karl-Franzens Universität Graz, 3, 26-28.
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Kloetzli-Chowanetz, E., Kloetzli, U., & Skiöld, T. (2001). Cambrian migmatisation and Ordovician tonalitic intrusion - Klopaier area, Ötztal crystalline complex, Eastern Alps. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 146, 133-134.
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Schuster, R., & Kloetzli, U. (2001). Dating of andalusite by geochronological methods (Sm-Nd and U-Pb) - a failure. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, (146), 272-274.
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Miller, C., Thöni, M., Frank, W., Grasemann, B., Kloetzli, U., Guntli, P., & Draganits, E. (2001). The early Palaeozoic magmatic event in the Northwest Himalaya, India: Source, tectonic setting and age of emplacement. Geological Magazine, 138(3), 237-251.
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Meli, S., & Kloetzli, U. (2001). Evidence for Lower Paleozoic magmatism in the Eastern Southalpine basement: Zircon geochronology from Comelico porphyroids. Schweizerische Mineralogische und Petrographische Mitteilungen: eine europäische Zeitschrift für Mineralogie, Geochemie und Petrographie, 81(2), 147-157.
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Kebede, T., Kloetzli, U., & Köberl, C. (2001). U/Pb and Pb/Pb zircon ages from granitoid rocks of Wallagga area: Constraints on magmatic and tectonic evolution of Precambrian rocks of western Ethiopia. Mineralogy and Petrology, 71(3-4), 251-271. DOI: 10.1007/s007100170041
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Kloetzli, U., Koller, F., Scharbert, S., & Höck, V. (2001). Cadomian lower-crustal contributions to Variscan granite petrogenesis (South Bohemian Pluton, Austria): Constraints from zircon typology and geochronology, whole-rock, and feldspar Pb-Sr isotope systematics. Journal of Petrology, 42(9), 1621-1642.
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Neubauer, F. M., Kloetzli, U., & Poscheschnik, P. (2001). Cadomian magmatism in the Alps recorded in Late Ordovician sandstones of the Carnic Alps: Preliminary results from zircon Pb/Pb evaporation dating. Schweizerische Mineralogische und Petrographische Mitteilungen: eine europäische Zeitschrift für Mineralogie, Geochemie und Petrographie, 81(2), 175-179.
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Loizenbauer, J., Wallbrecher, E., Fritz, H., Neumayr, P., Khudeir, A. A., & Kloetzli, U. (2001). Structural geology, single zircon ages and fluid inclusion studies of the Meatiq metamorphic core complex; implications for Neoproterozoic tectonics in the Eastern Desert of Egypt. Precambrian Research, 110(1-4), 357-383.
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Bregar, M., Bauernhofer, A., Pelz, K., Kloetzli, U., Fritz, H., & Neumayr, P. (2000). The Sibai Magmatic Core Complex in the Eastern Desert of Egypt: Emplacement of Granitoids in a Wrench-Tectonic Setting. Journal of African Earth Sciences, 30(4A), 17-18.
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Kebede, T., Kloetzli, U., & Köberl, C. (2000). Single-Grain Zircon 207Pb/206Pb Ages and Evolution of Granitoid Magmatism in Western Ethiopia. Journal of African Earth Sciences, 30(4A).
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Kloetzli, U., & Horschinegg, M. (2000). Assessment of the external reproducibility of single zircon evaporation dating based on standard zircon 91500 analyses. Geoanalysis 2000, CRPG Vandoeuvrre les Nancy, France, 58.
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Miller, C., Schuster, R., Kloetzli, U., & Frank, W. (2000). Late Cretaceous-Tertiary magmatic and tectonic events in the Transhimalaya batholith (Kailas area, SW Tibet). Schweizerische Mineralogische und Petrographische Mitteilungen: eine europäische Zeitschrift für Mineralogie, Geochemie und Petrographie, 80(1), 1-20.
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Buda, G., Puskás, Z., Gál-Sólymos, K., Kloetzli, U., & Cousens, B. L. (2000). Mineralogical, petrological and geochemical characteristics of crystalline rocks of the Üveghuta boreholes (Mórágy Hills, South Hungary). Annual Report of the Geological Institute of Hungary, 1999,2000, 1-23.
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Miller, C., Kloetzli, U., Frank, W., Thöni, M., & Grasemann, B. (2000). Proterozoic crustal evolution in the NW Himalaya (India) as recorded by circa 1.80 Ga mafic and 1.84 Ga granitic magmatism. Precambrian Research, (103), 191-206.
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Miller, C., Kloetzli, U., Frank, W., Thöni, M., & Grasemann, B. (1999). Proterozoic magmatism in the NW Lesser Himalaya: Age discrepancies between zircon Pb-Pb and Sm-Nd whole rock systems. Terra Nostra. Schriften der GeoUnion Alfred-Wegener Stiftung, 99(2).
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Bregar, M., Bauernhofer, A., Fritz, H., Pelz, K., & Kloetzli, U. (1999). The Sibai Dome, Eastern Desert, Egypt: Magmatic, kinematic and sedimentary development recording the chronological relationship between formation and exhumation of a core complex. Journal of Conference Abstracts, 4(1).
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Kloetzli, U., & Koller, F. (1999). Co-existence of independent mineral parageneses in granitoids: The Weinsberg granite, South Bohemian Batholith. European Journal of Mineralogy: an international journal of mineralogy, geochemistry and related sciences, Beihefte(11/1).
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Kloetzli, U., Buda, G., & Koller, F. (1999). Geochronological evidence for the derivation of the Mecsek Mountains, South Hungary, from Variscan Central Europe. European Journal of Mineralogy: an international journal of mineralogy, geochemistry and related sciences, Beihefte(11/1).
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