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Department of Geology

Nils Lenhardt

Lecturer

Physical Volcanology

Office: 4-38 Mineral Sciences Building

E-mail: nils.lenhardt@up.ac.za

Phone: +27 (0)12 420 3310

Fax: +27 (0)12 362 5219



RESEARCH INTERESTS

  • Active volcanism
  • Explosive volcanism
  • Volcanogenic sediments
  • Magma-water interactions
  • The impact of volcanic eruptions on the environment
  • Large Igneous Provinces

EDUCATION

  • 2005-2009 Ph.D. (Dr. rer. nat.) Earth Sciences, Technical University of Darmstadt, Germany
  • 1997-2004 Dipl.-Geol. (equiv. to M.Sc.) Geology and Palaeontology, Technical University of Darmstadt, Germany

EMPLOYMENT

Since 2011: Lecturer, University of Pretoria, South Africa

2010-2011: Postdoctoral Research Fellow, University of Pretoria, South Africa

2005-2009: Research Assistant, Technical University of Darmstadt, Germany

1998-2004: Research Assistant, Hessian State Museum, Darmstadt, Germany


TEACHING & PROJECT SUPERVISION

Lecturing:

  • 2011-present: GLY361 Ore Deposits (3rd year level)
  • 2012: GLY352 Geodynamics and Ore-forming processes (3rd year level)
  • 2011-present: GLY702 Physical Volcanology (Honours level)
  • 2011: GLY162 Environmental Geology (1st year level)

Project supervision:

BSc Honours Projects

2012: Mr. Bethuel Manyike - Geological mapping of the Palaeoproterozoic Rooiberg Group north of Nylstroom, Limpopo Province, South Africa.

 

         Mr. Freddy Mthombeni - Geological mapping of the Palaeoproterozoic Rooiberg Group north of Nylstroom, Limpopo Province, South Africa.

 

         Mr. Thabang Maphuta - Geological mapping of the Palaeoproterozoic Rooiberg Group north of Nylstroom, Limpopo Province, South Africa.

 

         Mr. Sihle Thabo Mtshali - Geological mapping of the Palaeoproterozoic Rooiberg Group north of Nylstroom, Limpopo Province, South Africa.

 

 

MSc Projects

2012: Mr. Fahad Mahmood – Physical Volcanology, stratigraphy and petrography of the Rooiberg Group (Bushveld Large Igneous Province) near Nylstroom, Limpopo Province, South Africa (tentative title)

Ms. Susan Serfontein – Palynology of a Permian coal seam in the South African Karoo (tentative title)

Mr. Fabian Shaanika – Assessment of the economic viability of extracting and beneficiating the copper component of the Skorpion zinc deposit, Namibia

2011-present:   Mr. Samson Motlagomang Masango – Physical Volcanology, stratigraphy and petrography of the  Rooiberg Group (Bushveld Large Igneous Province) near Loskop Dam, Mpumalanga, South Africa

PhD Projects

2013: Mr. Gert-Jan Peeters – Physical volcanology and hazard assessment of the Holocene Ngozi Caldera, Tanzania. (co-supervision with Dr. Karen Fontijn, University of Oxford)

2012: Mr. Musab Mohamed Elmahi – Depositional environment, diagenesis and three-dimensional geological   modeling of a complex fluvial-lacustrine system in the Neem Field, Late Jurassic to Early Cretaceous, Muglad Basin, Sudan. (co-supervision with Prof. P.G. Eriksson and Prof. A.J. Bumby)

Mr. Mohamed Abaker Abdalla – System Tracts and Depositional Sequences of the Fula Sub-Basin (Muglad Basin), Sudan.

2011-present:  Mr. Olutola Jolayemi – Geochemistry and petrology of the Rooiberg Group, Bushveld Large Igneous Province, South Africa. (co-supervision with Dr. James Roberts)


PUBLICATIONS

  •  Eriksson, P.G., Banerjee, S., Catuneanu, O., Corcoran, P.L., Eriksson, K.A., Hiatt, E.E., Laflamme, M., Lenhardt, N., Long, D.G.F., Miall, A.D., Mints, M.V., Pufahl, P.K., Sarkar, S., Simpson, E.L. & Williams, G.E. (in press) Secular changes in sedimentation systems and sequence stratigraphy. Gondwana Research. doi: 10.1016/j.gr.2012.09.008.
  • Altermann, W. & Lenhardt, N. (2012) The volcano-sedimentary succession of the Archean Sodium Group, Ventersdorp Supergroup, South Africa: Volcanology, facies and geochemistry. Precambrian Research. 214-215, 60-81. doi: 10.1016/j.precamres.2012.02.012.
  • Eriksson, P.G., Bartman, R., Catuneanu, O., Mazumder, R. & Lenhardt, N. (2012) Relationship between microbial mat-related features, inferred palaeoenvironments and sequence stratigraphic models: a case study on sandstones within clastic epeiric basin-fills from the Palaeoproterozoic Pretoria Group (Transvaal Supergroup), Kaapvaal craton, South Africa. Sedimentary Geology, 263-264, 67-75. doi: 10.1016/j.sedgeo.2011.08.006.
  • Lenhardt, N. & Eriksson, P.G. (2012) Volcanism of the Palaeoproterozoic Bushveld Large Igneous Province: the Rooiberg Group, Kaapvaal Craton, South Africa. Precambrian Research. 214-215, 82-94. doi: 10.1016/j.precamres.2011.12.003.
  • Lenhardt, N., Eriksson, P.G., Catuneanu, O. & Bumby, A.J. (2012) Nature of and controls on volcanism in the c. 2.35 – 2.05 Ga Pretoria Group, Kaapvaal Craton, South Africa. Precambrian Research. 214-215, 106-123. doi: 10.1016/j.precamres.2011.09.012. 
  • Mazumder, R., Eriksson, P.G., De, S., Bumby, A.J. & Lenhardt, N. (2012) Palaeoproterozoic sedimentation on the Singhbhum craton: global context and comparison with Kaapvaal. In: Mazumder, R. & Saha, D. (Eds.), Palaeoproterozoic of India. Geological Society, London, Special Publications, 365, pp. 51-76.
  • Eriksson, P.G., Lenhardt, N., Wright, D.T., Mazumder, R. & Bumby, A.J. (2011) Late Neoarchaean-Palaeoproterozoic supracrustal basin-fills of the Kaapvaal craton: relevance of the supercontinent cycle, the "Great Oxidation Event" and "Snowball Earth"? Marine and Petroleum Geology, 28, 1385-1401. doi: 10.1016/j.marpetgeo.2011.05.007.
  • Götz, A.E. & Lenhardt, N. (2011) The Anisian carbonate ramp system of Central Europe (Peri-Tethys Basin): sequences and reservoir characteristics. Acta Geologica Polonica, 61, 59-70.
  • Lenhardt, N. & Götz, A.E. (2011) Volcanic settings and their reservoir potential: an outcrop analogue study on the Miocene Tepoztlán Formation, Central Mexico. Journal of Volcanology and Geothermal Research, 204, 66-75. doi: 10.1016/j.jvolgeores.2011.03.007.
  • Lenhardt, N., Hornung, J., Hinderer, M., Böhnel, H., Torres-Alvarado, I.S. & Trauth, N. (2011) Build-up and depositional dynamics of an arc front volcaniclastic complex: The Miocene Tepoztlán Formation (Transmexican Volcanic Belt, Central Mexico). Sedimentology, 58, 785-823. doi: 10.1111/j.1365-3091.2010.01203.x.
  •  Lenhardt, N., Böhnel, H., Wemmer, K., Torres-Alvarado, I.S., Hornung, J. & Hinderer, M. (2010) Petrology, magnetostratigraphy and geochronology of the Miocene volcaniclastic Tepoztlán Formation: implications for the initiation of the Transmexican Volcanic Belt (Central Mexico). Bulletin of Volcanology, 72, 817-832. doi: 10.1007/s0045-010-0361-z. 
  • Lenhardt, N., Martinez-Hernandez, E., Götz, A.E., Hinderer, M., Hornung, J., TorresAlvarado, I.S. & Kempe, S. (2006): Palaeoenvironmental Reconstruction of the Miocene Tepoztlán Formation (Central Mexico): Preliminary Results of Palynological Investigations. In: Espinasa-Perena, R. & Pint, J. (Eds.), Proceedings of the X, XI, and XII international symposia on volcanospeleology. AMCS Bulletin, 19: 158-161.

CONFERENCES

  • Altermann, W., Frei, D. & Lenhardt, N. (2013) New correlation and age data for the Neoarchean Ventersdorp Supergroup, South Africa. 24th Colloquium of African Geology, Addis Ababa, Ethiopia, 09.-13.01.13.
  • Jolayemi, O.O., Lenhardt, N., Roberts, J. & Masango, S.M. (2013) Chemical evolution of the Paleoproterozoic Rooiberg Group, Kaapvaal Craton, South Africa: new insights into the formation of silicic large igneous provinces (SLIPs). 24th Colloquium of African Geology, Addis Ababa, Ethiopia, 09.-13.01.13.
  • Masango, S.M., Lenhardt, N. & Jolayemi, O.O. (2013) First lithofacies analysis on and the geodynamic setting of a Palaeoproterozoic silicic large igneous province:  the Rooiberg Group, Kaapvaal Craton, South Africa. 24th Colloquium of African Geology, Addis Ababa, Ethiopia, 09.-13.01.13.
  • Altermann, W., Lenhardt, N. & Barton, E. (2012) New Age Data for the Ventersdorp Supergroup, Kaapvaal Craton and correlation to the Fortescue Group, Pilbara Craton. 34th International Geological Congress (IGC), 5.-10.08., Brisbane, Australia.
  • Lenhardt, N. & Eriksson, P.G. (2011): Lithofacies of the volcanic Machadodorp Member (Silverton Formation), South Africa.- 23rd Colloquium of African Geology, Johannesburg, South Africa, 08.-14.01.11., Abstracts volume, p. 239.
  • Navaya, S., Lenhardt, N. & Eriksson, P.G. (2011): Geochemistry of the volcanic Machadodorp Member, Silverton Formation, South Africa.- 23rd Colloquium of African Geology, Johannesburg, South Africa, 08.-14.01.11., Abstracts volume, p. 299.
  • Nkosi, N., Lenhardt, N. & Eriksson, P.G. (2011): Thermal evolution of the Rooiberg Group, South Africa.- 23rd Colloquium of African Geology, Johannesburg, South Africa, 08.-14.01.11., Abstracts volume, p. 309.
  • Götz, A.E. & Lenhardt, N. (2009): Sequences and reservoir characteristics of a Middle Triassic carbonate system (Peri-Tethys Basin, Central Europe).- 27th IAS Meeting of Sedimentology, Alghero, Italy, 20.-23.09.09.
  • Lenhardt, N., Hinderer, M., Hornung, J., Torres-Alvarado, I.S. & Böhnel, H. (2009): The Miocene Tepoztlán formation (Central Mexico) – Key to a better understanding of the initial phase of the Transmexican Volcanic Belt. In: Haczewski, G. (ed.): Abstracts and Field Guide, 6th annual conference of SEPM-CES SEDIMENT 2009, Cracow, Poland, 24.-25.06.09, p. 28.
  • Torres-Alvarado, I.S., Lenhardt, N., Hinderer, M. & Hornung, J. (2009): Composición química e isotópica de las rocas volcánicas de la Formación Tepoztlán, Estados de México y Morelos. XIX Congreso Nacional de Geoquímica, Actas INAGEQ, vol. 15, pp. 39.
  • Götz, A.E. & Lenhardt, N. (2008): Reservoir characteristics of Middle Triassic ramp deposits: the Lower Muschelkalk Jena Formation (Steudnitz, Germany).- 26th IAS Regional Meeting/ SEPM-CES Sediment 2008, Bochum, 1.-3.09., SDGG 58, Abstract volume, p. 120
  • Lenhardt, N. & Götz, A.E. (2008): Reservoir characteristics of ash-flow deposits: a case study on the Tepoztlán Formation, Central Mexico.- IAVCEI General Assembly 2008, Reykjavik, 17.-22.08., Abstracts: Poster Session IV, 2l-P04, p. 30.
  • Lenhardt, N., Herrmann, M., Mosbrugger, V. & Hinderer, M. (2008): Palynology of the Tepoztlán Formation, Central Mexico – palaeoenvironmental and palaeoclimatological implications.- Terra Nostra 2008/2, 12th International Palynological Congress IPC-XII/IOPC-VIII, Bonn, Abstract Volume, p. 162. 
  • Lenhardt, N., Hinderer, M., Hornung, J., Torres-Alvarado, I.S. & Böhnel, H. (2008): Facies model of the Miocene volcaniclastic Tepoztlán Formation: a step forward in deciphering the initial phase of the Transmexican Volcanic Belt.- IAVCEI General Assembly 2008, Reykjavik 17.-22.08., Abstracts: Oral presentations: Monday, p. 84.
  • Lenhardt, N., Hinderer, M., Hornung, J., Torres-Alvarado, I.S. & Böhnel, H. (2008): A facies model of a volcaniclastic apron: The Miocene Tepoztlán Formation (Central Mexico).- 26th IAS Regional Meeting/ SEPM-CES Sediment 2008, Bochum, 1.-3.09., SDGG 58, Abstract volume, p. 167
  • Lenhardt, N., Hinderer, M., Hornung, J., Torres-Alvarado, I.S. & Böhnel, H. (2007): The Miocene Tepoztlán Formation (Central Mexico) - Key to a better understanding of the initial phase of the Transmexican Volcanic Belt.- Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract V41D-0805.
  • Lenhardt, N., Trauth, N., Hornung, J., Hinderer, M., Torres-Alvarado, I.S. & Böhnel, H. (2007): Depositional processes of Miocene volcaniclastic series at the southern edge of the Transmexican Volcanic Belt.- 20th Colloquium on Latin American Earth Sciences, Kiel 11.-13.07, Abstracts, SZ2P05, p. 290.
  • Lenhardt, N., Martinez-Hernandez, E., Götz, A.E., Hinderer, M. & Hornung, J. (2006): Palynomorph assemblages from a Miocene volcaniclastic section in Central Mexico (Tepoztlán Formation): evidence for palaeoenvironmental changes.- 7th European Paleobotany-Palynology Conference, Prague 6.-11.09.06, Program and abstracts,  p. 80, ISBN 80-7036-198-0.
  •  Lenhardt, N., Martinez-Hernandez, E., Götz, A.E., Hinderer, M., Hornung, J. & Kempe, S. (2006): Palaeoenvironmental reconstruction of the Miocene Tepoztlán Formation using palynology.- XII International Symposium on Volcanospeleology, Tepoztlán, 02.-07.07.06, Programm and Abstracts: 6.
  • Lenhardt, N., Götz, A.E., Hinderer, M. & Hornung, J. (2006) A new reference section from volcaniclastic rocks of Miocene terrestrial palynomorphs in Central Mexico. EGU Geophysical Research Abstracts, Vol. 8: 03121, 2006. 
  • Lenhardt, N., Hinderer, M. & Hornung, J. (2005): First extraction of pollen grains and spores from volcaniclastic deposits: implication for environmental conditions at the initiation of the Transmexican Volcanic Belt in the Miocene.- 19th Colloquium on Latin American Earth Sciences, Potsdam 18.-20.05, Terra Nostra (05/1).
  • Lenhardt, N. (2004): Erste Ergebnisse einer palynologischen Datierung und Paläoenvironment-Rekonstruktion innerhalb tertiärer Vulkanoklastika in Zentral-Mexiko.- 74. Jahrestagung der Paläontologischen Gesellschaft, Geobiologie 2004, Göttingen 2.-8.10.04. Kurzfassungen der Vorträge und Poster.- Göttingen: Univ.-Verl.- ISBN 3-930457-60-1. 
  • Hinderer, M., Lenhardt, N. & Torres-Alvarado, I.S. (2003): Vulkanoklastika als Dokumente der Evolution des Transmexikanischen Vulkangürtels im Tertiär - erste Ergebnisse.- Sediment 2003, Wilhelmshaven, Germany 10.-14.06.03. Program, abstracts & field trips/ 18th Meeting of Sedimentologists.

 


AFFILIATIONS AND MEMBERSHIPS

  • DGG: Deutsche Geologische Gesellschaft (German Association of Geosciences)
  • GSA: Geological Society of America
  • GV: Geologische Vereinigung (German Geological Society)
  • IAVCEI: International Association of Volcanology and Chemistry of the Earth’s Interior

USEFUL LINKS