I started my geological career in 1995 as a junior geologist with Hennie Blignault and Associates, an exploration company for whom I did work in Zimbabwe, Uganda, Kenya and Tanzania which included core logging (diamond drill, percussion drill and heavy sands), soil sampling, feasibility studies, mine planning and mine development on relatively small scale.  In 1997 I joined the Council for Geoscience in the Upington office (Northern Cape) and spent the next nineteen years mainly on geological mapping and research of the Namaqua Metamorphic Province, map compilation, writing of map explanations, reports and articles.  Other activities included rendering geological assistance to local communities and farmers, development of the small scale mining industry in the Northern Cape, groundwater studies and co-operation with universities and other science institutions.  In 2017 I joined the University of the Free State as a senior lecturer and geological researcher, which is the position I still hold.

Minnaar, H. 2005. The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif-Henkries-Steinkopf). M.Sc. thesis. University of Pretoria, 90p.

Minnaar, H. and Theart, H.F.J. 2006. The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif-Henkries-Steinkopf). South African Journal of Geology,
Vol 109, pp 341-352.

Minnaar, H. 2012. Composition and evolution of the Proterozoic Vioolsdrif batholith (including the Orange River group), Northern Cape Province, South Africa. P.hD. thesis, University of the Free State, South Africa, 209p. (Unpublished.)

Minnaar, H. 2014. Composition and evolution of the Proterozoic Vioolsdrif batholith (including the Orange River group), Northern Cape Province, South Africa. Memoir, Council for Geoscience, 98, 115 p.

Minnaar, H., Botha, P.M.W. and Roberts, D. 2010. The geology of the Alexander Bay area. Explanation sheet 2816, scale 1:250 000, Council for Geoscience, 91p.

Macey, P.H., Siegfried, H.P., Minnaar, H. and Botha, P.M.W. 2008. The geology of the Loeriesfontein area. Explanation, sheet 3018, scale 1:250 000, Council for Geoscience, 117p.

Ngcofe, L., Minnaar, H. and Chevallier, L. 2010. A comparative study of hyperspectral versus multispectral images as an aid in geological mapping near Alexander Bay, Northern Cape, South Africa. South African Journal of Geology, Vol 113.2, pp 141-154.

Ngcofe, L., Minnaar, H., Halenyane, K. and Chevallier, L. 2013. Multispectral and hyperspectral remote sensing: Target area generation for porphyry copper exploration in the Namaqua metamorphic province, South Africa. South African Journal of Geology, Vol 116, pp 259-272.

Ngcofe, L., Minnaar, H. and Chevallier, L. 2014. Hyperspectral remote sensing: A (new) tool for geological mapping.

My research mainly focuses on the Namaqua Metamorphic Province, a Paleo- to Mesoproterozoic mobile belt which is associated with the assembly of the supercontinent Rodinia.

Orogenic belts, Proterozoic crust formation processes, plate tectonics, Structural Geology, Geochemistry, Isotope Geochemistry

Structural Geology, Plate Tectonics, Practical Geological Mapping