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Trishya Owen-Smith

Dr Trishya Owen-Smith

Senior Lecturer
Name: Trishya Owen-Smith
Location: C1 Lab 422 Auckland Park Kingsway Campus
Department of Geology Staff听 Staff Members

Contact Details:
Tel: +27 (0)11 559 2677

Email:听trishyaos@uj.ac.za

About Dr Trishya Owen-Smith

Trishya Owen-Smith is an igneous petrologist and geochemist. She completed her PhD at the 欧美福利100000 of the Witwatersrand in 2014, and subsequently worked as a post-doctoral researcher at the GeoForschungsZentrum (GFZ) in Potsdam, Germany. She joined the Department of Geology at UJ in 2016. Her previous research has centred on examining the magmatic products of Large Igneous Provinces鈥攊n the case of the Deccan Traps, alkaline intrusive magmatism in the Seychelles; in the Paran谩-Etendeka Province, dyke swarms, intrusions and flood basalts in Namibia鈥攖o interpret their emplacement and evolution, as well as implications for mantle dynamics and continental break-up. Her more recent focus is on the petrogenesis of massif-type anorthosite complexes鈥攕pecifically the Kunene Complex of Angola/Namibia鈥攁nd the insights they give into Proterozoic crust-forming processes.

Research Interests

Mantle geochemistry and dynamics; magma differentiation and emplacement processes; early Earth evolution and tectonics; palaeoclimate and mass extinction events; planetary geology/cosmochemistry

Teaching
  • Optical Mineralogy (1st year)
  • Environmental Isotope Geochemistry (Honours)
  • 3rd year and Honours field schools
Recent publications
  • Milani, L., Oosthuizen, L.*, Owen-Smith, T.M., Bybee, G.M., Hayes, B., Lehmann, J. & Jelsma, H. (2024). Magnetite geochemistry as a proxy for metallogenic processes: A study on sulfide-mineralized mafic鈥搖ltramafic intrusions peripheral to the Kunene Complex in Angola and Namibia. Mineralium Deposita.
  • Ferreira, E., Lehmann, J., Rodrigues, J.F., Hayes, B., Merino-Mart铆nez, E., Milani, L., Bybee, G.M., Owen鈥慡mith, T.M., Garc铆a-Lob贸n, J.L., Tassinari, C.C.G., Ueckermann, H., Sato, K., Silva, P.B., Correia, J., Labaredas, J., Duarte, L., Molekwa, M.A., Manuel, J. & Victorino, A.M.L. (2024). Zircon U-Pb and Lu-Hf isotopes reveal the crustal evolution of the SW Angolan Shield (Congo Craton), Gondwana Research, 131, 317鈥�342.
  • Tau, G.L.*, Hofmann, A., Lehmann, J., Owen-Smith, T., Pellerin, A., Thomazo, C., Reinke, C., Wilson, A.H. (2024). The Lanseria palaeosol: Implications for palaeoweathering and terrestrial life at 鈭�2.6 Ga on the Kaapvaal Craton. Precambrian Research, 405, 107352.
  • 鈥婰ehmann, J., Brower, A., Owen-Smith, T.M., Bybee, G.M. & Hayes, B. (2023). Integrated geology and remote sensing reveal the architecture of the giant Mesoproterozoic Kunene Complex anorthosites (Angola/Namibia). Geoscience Frontiers, 14(5), 101620.
  • Ncube, S.*, Wabo, H., Owen-Smith, T.M., Gumsley, A.P. & Beukes, N.J. (2023). The Puduhush gabbro in Griqualand West, South Africa: extending ca. 1.89 to 1.83 Ga intraplate magmatism across the proto-Kalahari Craton. South African Journal of Geology, 126(1), 75鈥�92.
  • Milani, L., Lehmann, J., Bybee, G.M., Hayes, B., Owen-Smith, T.M., Oosthuizen, L.*, Delport, P.W.J., Ueckermann, H. (2022). Geochemical and geochronological constraints on the Mesoproterozoic Red Granite Suite, Kunene AMCG Complex of Angola and Namibia. Precambrian Research, 379, 106821.
  • Hayes, B., Lehmann, J., Bybee, G.M.,听Owen-Smith, T.M听(2022). Crystal transfer from magma to wallrock during syntectonic granite emplacement.听Journal of the Geological Society.听
  • Owen-Smith, T.M., Trumbull, R.B., Bauer, K., Keiding, J.K. & Will, T.M. (2021). A neural network application to assess magma diversity in the Etendeka igneous province, Namibia.听South African Journal of Geology,听124(2), 481-498.听
  • Lehmann, J., Bybee, G.M., Hayes, B.,听Owen-Smith, T.M. & Belyanin, G. (2020). Emplacement of the giant Kunene AMCG complex into a contractional ductile shear zone and implications for the Mesoproterozoic tectonic evolution of SW Angola.听International Journal of Earth Sciences, 109, 1463鈥�1485.听
  • Bybee, G.M., Hayes, B.,听Owen-Smith, T.M., Lehmann, J., Ashwal, L.D., Brower, A.M, Hill, C.M., Corfu, F. Manga, M. (2019). Proterozoic massif-type anorthosites as the archetypes of long-lived (鈮�100鈥疢yr) magmatic systems鈥擭ew evidence from the Kunene Anorthosite Complex (Angola).听Precambrian Research, 332, 105393.听
  • Owen-Smith, T.M., Ganer酶d, M., van Hinsbergen, D.J.J., Gaina, C., Ashwal, L.D. & Torsvik, T.H. (2019). Testing Early Cretaceous Africa鈥揝outh America fits with new palaeomagnetic data from the Etendeka Magmatic Province (Namibia).听Tectonophysics, 760, 23-35.听

*MSc and PhD students

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