Interpretation of run-of-mine comminution and recovery parameters using multi-element geochemical data clustering

Multi-element (ME) datasets provide comprehensive geochemical signatures of an orebody and are commonly used to gain insight into the mineralogy, lithology, alteration patterns and to identify target-pathfinders. However, little effort is made in using these data to explain comminution or recovery characteristics. This paper describes an...

Material fingerprinting as a tool to investigate between and within material type variability with a focus on material hardness

Geochemical and mineralogical datasets from Tropicana Gold Mine, Australia, have been used to define Au-mineralised fingerprints. VNIR-SWIR spectral data were represented by four normalised wavelength regions and were clustered to form spectral classes. Sequentially, these spectral class proportions within a block and co-located pXRF data...

Material fingerprinting as a potential tool to domain orebody hardness and enhancing the prediction of work index

Geochemical and mineralogical datasets from Tropicana Gold Mine, Australia, have been used to define ore fingerprints. VNIR/SWIR spectral data were represented by four normalised wavelength regions and were clustered to form spectral classes. Sequentially, these spectral class proportions within a block and collocated XRF data were clustered to...

Black middle-income housing and asset building in Mangaung, South Africa

Asset-building policies are used worldwide to reduce state welfare commitments. In the Global South, including South Africa, asset-based housing development is thought to help reduce poverty. This study investigated asset building and homeownership in a sample of South Africa’s emerging black middle class. Interviews with 244 black middle-class...

The housing careers of black middle-class residents in a South African metropolitan area

Under apartheid, black African households could not own land or homes in most major urban centres in South Africa. This limited residential mobility and locked many households into state rental accommodation in townships. Homeownership for all South Africans was restored in the mid-1980 s and the Group Areas Act was repealed in 1991.<br/...

A numerical modelling investigation into design variables influencing mixing efficiency in full scale gas stirred ladles.