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Dr. R. Johannes Giebel

Lupe

Curator of the Mineralogical collections

Technical University of Berlin

Institute for Applied Geosciences
Department of Applied Geochemistry
Sekr. BH 9-3
Ernst-Reuter-Platz 1
10587 Berlin

 

Room BH-N 908

Tel.: +49 (0) 30 314-22254

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As curator of the mineralogical collections of the TU Berlin and scientific member of the department of Applied Geochemistry it is my task to administrate, develop and present the mineralogical collections to the public as well as to support and expand the teaching and research in the field of mineralogy and petrology. The main aim is to combine the Mineralogical Collections and science in mutual interaction. For this purpose, corresponding specimens of the collections are brought in and dealt with both in teaching and research.

The Mineralogical Collection consists of over 200,000 specimens, of which selected pieces are displayed in the exhibition of the Mineralogical Museum of the TU (BH building 6th floor). A major thematic priority of the collections is both the classification of minerals and the demonstration of the importance of mineralogy and geology (applied geosciences) in modern society. A specific focus lies on the collection of specimens from Namibia and Hagendorf (Germany).

Fields of responsibility (Person in charge)

      • Mineralogical collections of the TU Berlin
      • Thin section preparation lab (Department of Applied Geochemistry)

      Scientific fields related to the Mineralogical Collections

      Thematic interests, which are addressed in the Mineralogical Collections, are focused on the following main topics:

      • Historical development of the Mineralogical Collections of the TU Berlin
      • Classification system of mineral specimens
      • Mineral and rock identification
      • Genesis of magmatic and metamorphic rocks
      • Digitalization of mineral and rock specimens
      • Gemmology

      Research Interest

      My research interests are interdisciplinary covering research fields of mineralogy, petrology, economic geology and geochemistry. Focus of my research is related to carbonatite and carbonatite-related mineral deposits with following objectives:

      • Syn- and postmagmatic mineralogical and mineral chemical modification of Carbonatites: contamination vs. metamorphism (e.g., Giebel et al. 2019b, Giebel et al. in prep.).
      • Hydrothermal evolution and ore forming processes in carbonatite and carbonatite related deposits (e.g., Giebel et al. 2017, Walter et al. 2020).
      • The genesis and ascent mechanisms of carbonatitic magmas (e.g., Giebel et al. 2019a, Walter et al. in prep).
      • The genetic association of carbonatites and phoscorites (e.g., Giebel et al. 2019a).

      Research Projects

      Different research projects focusing the genesis, evolution and modification of carbonatites and associated rock types in southern Africa (Namibia and South Africa).

      Current projects:

      • Effect and significance of contamination-related compositional melt variations of the Tweerivier and Bulhoekkop carbonatites, South Africa, with special reference to their REE mineralization (DFG)

      Completed projects:

      • Rare earth element mineralizations in the Palabora Carbonatite Complex (DFG)

      Topics for bachelor and master thesis

      If you are interested in any of these topics please contact me.

      • Coming soon!

      Curriculum Vitae

      »  Curriculum Vitae

      Occupational activity:

      • Since 2020 Scientific employee and curator of the mineralogical collections (TU Berlin, Berlin, Germany)
      • 2016-2020 Scientific employee (Eberhard Karls University, Tübingen, Germany)
      • 2013-2015 Scientific employee (State Museum of Natural History in Karlsruhe, Karlsruhe, Germany)

      Academic Education:

      • 2019 PhD in Petrology and Mineral Resources. Eberhard Karls University, Tübingen, Germany
      • 2013 M.Sc. in Economic Geology. University of the Free State, Bloemfontein, South Africa
      • 2012 Dipl. Geol. In Geology and Paleontology. Martin-Luther University Halle-Wittenberg, Halle, Germany

      »  Memberships

      Member of the Deutsche Mineralogische Gesellschaft (DMG)

      Member of the Society of Geology applied to mineral deposits (SGA)

      »  Further Activities

      Reviewer: Journal of Petrology, Mineralium Deposita, Geochemistry, Journal of African Earth Sciences

      Publication list

      »  Publications (peer-reviewed in SCI-journals)

      Walter, B.F., Steele-MacInnis, M., Giebel, R.J., Marks, M.A. & Markl, G. (2020):

      Complex carbonate-sulfate brines in fluid inclusions from carbonatites: Estimating compositions in the system H2O-Na-K-CO3-SO4-Cl. Geochimica et Cosmochimica Acta. Vol 277. P 224-242

      https://doi.org/10.1016/j.gca.2020.03.030

      Dietzel, C.A.F., Kristandt, T., Dahlgren, S., Giebel, R.J., Marks, M.A.W. & Markl, G. (2019):

      Hydrothermal processes in the Fen carbonatite complex, southern Norway. Ore Geology Reviews. Vol. 111.

      https://doi.org/10.1016/j.oregeorev.2019.102969

      Giebel, R.J., Parsapoor, A., Walter, B.F., Braunger, S., Marks, M.A.W., Wenzel, T. and Markl, G. (2019):

      Evidence for magma – wall rock interaction in carbonatites from the Kaiserstuhl Volcanic Complex (Southwest Germany). Journal of Petrology 60(6). P 1163-1194

      https://doi.org/10.1093/petrology/egz028

      Giebel, R.J., Marks, M.A.W., Gauert, C.D.K. and Markl, G. (2019):

      A model for the formation of carbonatite-phoscorite assemblages based on the compositional variation of mica and apatite from the Palabora Carbonatite Complex, South Africa. Lithos. Vol. 324-325. P 89-104

      https://doi.org/10.1016/j.lithos.2018.10.030

      Giebel, R.J., Gauert, C.D.K., Marks, M.A.W., Costin, G. and Markl, G. (2017):

      The Multistage REE Mineralization of the Palabora Carbonatite Complex, South Africa. American Mineralogist. Vol. 102(6). P 1218-1233

      http://dx.doi.org/10.2138/am-2017-6004

      Beukes, J.J., Gauert, C.D.K. and Giebel, R.J. (2016):

      Cryptic mineral variation and PGE distribution in the Merensky Reef and its discontinuous mela-gabbronoritic hanging wall (“Brown Sugar Norite” – BSN) at Two Rivers Platinum Mine, Eastern Bushveld Complex, South Africa. South African Journal of Geology. Vol. 119(1). P 243-272

      http://dx.doi.org/10.2113/gssajg.119.1.243

       

      »  Invited Talks

      • Scientific Talk at the Indian Institute of Science Research and Education (IISER) in Bhopal, India (10/03/2020) “From mantle to crust: The magma ascent and evolution of carbonatites:”
      • 12th Wettelröder Montanistisches Kolloquium, Wettelrode, Germany (21/09/2019) „Die Cu-P-Fe-SEE -Lagerstätte Palabora, Südafrika – Land und Leute.“
      • The geoscientific colloquium of the Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany (10/12/2018) “News on carbonatites: Platznahmemechanismen und mineralogische Variationen. Ein Vergleich zwischen dem Palabora und dem Kaiserstuhl Komplex.“
      • HitechAlkCarb project meeting of the Kaiserstuhl group as part of the Horizon 2020, Heitersheim, Germany (28/11/2018) “The impact of contamination in carbonatites of the Kaiserstuhl Volcanic Complex.”
      • 3rd Expert Council on carbonatites and alkaline rocks in Edinburgh, Scotland (29-30/04/2017) “Advancing geomodels and sustainability for high-tech metal deposits” – topic (Giebel): How can volatile elements in roof zones of alkaline complexes (F, Cl, OH, S) be used to indicate if there is a prospective deposit below? – “Mineralization, Redistribution and Recrystallization of REE minerals in the Palabora Carbonatite Complex.”
      • 14th Freiberg Short Courses in Economic Geology in Freiberg, Germany (07-10/12/2016) held by R. Marschik, T. Niiranen, R.J. Giebel “Iron Oxide Copper Gold and Iron Oxide Apatite Deposits” – topic (Giebel): carbonatites as part of the IOCG deposit family – The Palabora Carbonatite Complex. Another type of IOCG group deposits? Similarities and differences.

       

      »  Conference Contributions

      Walter, B.F., Giebel, R.J., Marks, M.A.W. & Markl, G. (2020):

      Magmatic Interaction in Peralkaline Syenites of the Junguni Complex, Malawi. Goldschmidt Conference, Honolulu, Hawaii (USA), 21-26 June 2020. Pp1

      Giebel, R.J., Walter, B.F., Marks, M.A.W. & Markl, G. (2020):

      Mica Compositions Record Carbonatite – Silicate Wall-Rock Interaction. Goldschmidt Conference, Honolulu, Hawaii (USA), 21-26 June 2020. Pp1

      Gawęda, A., Szopa, K., Giebel, R. J., Chew, D., Sałacińska, A. & Gumsley, A. (2019):

      Petrological and geochronological study of apatites from Phalaborwa Complex (Limpopo Province, South Africa). International Conference on Accessory Minerals. Zavaritsky Institute of Geology and Geochemistry, Ekaterinburg, Russia. 3-5 September. Pp2

      Walter, B.F., Steele-MacInnis, M., Giebel, R.J., Marks, M.A.W. & Markl, G. (2019):

      A critical review on carbonatite hosted fluids with a special focus on the Kaiserstuhl SW-Germany. Goldschmidt Conference, Barcelona, Spain, 18-23 August 2019. Pp1

      Marks, M.A.W., Giebel, R.J., Walter, B.F., Braunger, S., Wenzel, T. & Markl, G. (2019):

      Evidence for wall-rock assimilation in carbonatites from the Kaiserstuhl (Germany). Goldschmidt Conference, Barcelona, Spain, 18-23 August 2019. Pp1

      Giebel, R.J., Marks, M.A.W., Gauert, C.D.K. & Markl, G. (2019):

      A model for the formation of carbonatite-phoscorite assemblages. Goldschmidt Conference, Barcelona, Spain, 18-23 August 2019. Pp1

      Giebel, R.J., Gauert, C.D.K., Marks, M.A.W. & Markl, G. (2019):

      The ascent of carbonatitic magmas. 21st Quenstedt Symposium. Tübingen, Germany, 12 Juli 2019. D3 (Best presentation of a PhD thesis 2019)

      Du Plessis, P.G., Roelofse, F., Gauert, C.D.K., Giebel, R.J. & Rentel, R. (2019):

      Sulphide mineral paragenesis of Palabora Complex carbonatites, South Africa. Igneous and Metamorphic Study Group Conference. Parys, RSA, 13-16 January. Pp1

      Giebel, R.J., Marks, M.A.W., Gauert, C.D.K. & Markl, G. (2017):

      Fluid-Mineral interaction and REE mineralization in the Palabora Carbonatite Complex. Goldschmidt Conference, Paris, France, 13-18 August 2017. Pp1

      Giebel, R.J., Marks, M.A.W., Gauert, C.D.K. and Markl, G. (2017):

      The Evolution of REE minerals of the Palabora Carbonatite Complex, South Africa. DMG section meeting Petrology. Berlin, Germany, 23-24 June 2015. Pp 1

      Giebel, R.J., Marks, M.A.W., Markl, G. & Gauert, C.D.K. (2016):

      Variability of REE mineralization in the Loolekop carbonatite of the Palabora Complex. 1st GOOD Meeting. Freiberg, Germany, 15-17 March 2016. P 31 (Best Poster Price)

      Giebel, R.J., Gauert, C.D.K., Marks, M.A.W. & Markl, G. (2016):

      Magmatic-hydrothermal processes forming the REE mineralisation in the Loolekop carbonatite of the Palabora Complex, South Africa. 35th International Geological Congress. Cape Town, South Africa, 27 August – 4 September 2016. P 2014 (Poster)

      Giebel, R.J. & Gauert, C.D.K. (2016):

      Hydrothermal U-Zr enrichment in hydraulic breccias of the carbonatite pipe of the Palabora Complex, Limpopo province. Igneous and Metamorphic Study Group Conference. University of Pretoria, RSA, January 2016. Pp 1

      Giebel, R.J., Gauert, C.D.K., Marks, M.A.W. & Kotzé, E. (2015):

      The Palabora Carbonatite Complex: A review of its geotectonic setting and outlook on incompatible element deportment. DMG section meeting Petrology. Potsdam, Germany, June 2015. Pp 1 (Poster)

      Giebel, R.J. & Gauert, C.D.K. (2015):

      Characterization of the REE mineralization in the lower pipe section of the Palabora carbonatite complex, Limpopo Province. Igneous and Metamorphic Study Group Conference. University of Pretoria, RSA, January 2015. Pp 1

      Gaweda, A., Gauert, C., Szopa, K., Chew, D. & Giebel, R.J. (2015):

      Palaeoproterozoic post-magmatic cooling of the Phalaborwa Complex, South Africa, constrained by U-Pb apatite dating. 22nd Meeting of the Petrology group of the Mineralogical Society of Poland. Sadomierz, Poland, 8-11 October 2015. Mineralogia – Special Papers. Vol. 44. P 37

      Giebel, R.J., Gauert, C.D.K. & Costin, G. (2015):

      Rare earth minerals in the lower part of the Palabora Carbonatite Complex, South Africa. 13th SGA Biennial Meeting: Mineral resources in a sustainable world. Nancy, France, 24-27 August 2015. P 1009-1012

      Giebel, R.J., Gauert, C.D.K. & Schannor, M. (2013):

      Textural and geochemical aspects of Upper Critical Zone rocks of the eastern Bushveld Complex at Two Rivers Platinum mine, South Africa. DMG, GV and SEDIMENT Joint Annual Meeting – Geofluids: Lubricants of Dynamic Earth. Tübingen, Germany, 16-19 September 2013. Abstract volume. P 99 (Poster)

      Gauert C.D.K., Kotzé, E., Beukes, J.J. & Giebel, R.J. (2013):

      Contribution Reef disturbances of Critical Zone rocks of the eastern Bushveld Complex in the vicinity of the Steelpoort fault, South Africa – petrogenetic implications. 12th SGA Biennial Meeting: Mineral deposit research for a high tech world. Uppsala, Sweden, 12-15 August 2013. P 989-992

      Gauert, C.D.K., Giebel, R.J., Schannor, M. & Beukes, J.J. (2012):

      Mineralogical and geochemical investigations of Critical Zone rocks south and north of the Steelpoort fault of the eastern Bushveld Complex – petrogenetic implications. 9th International Inkaba Workshop. Potsdam, Germany, 25 November - 1 December 2012. P 27

      Courses that I teach at the TU Berlin

        • Mineral- und Gesteinsbestimmung (Vorlesung/Übung 4 SWS, 2 Sem. BSc)
        • Elektronenmikroskopie (Vorlesung/Übung 3 SWS, 4. Sem MSc.)
        • Durchlichtmikroskopie (Vorlesung/Übung 3 SWS, 4. Sem MSc.)

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