Intra-seam Sedimentological Controls on Coal Quality: 2 Seam, Witbank Coalfield
Sub-seam mapping at an opencast colliery in the Witbank area, setting out a method geologists and resource estimators can apply to other seams.
by Mark Grodner | March 2003
Sub-seams within the No 2 Seam were characterised at a single test site using lithology, seam thickness, proximate analysis, petrography and geophysical logs, and a paleoenvironmental model was built from them. Wireline logs separated coal from interburden but could not resolve the individual zones, because the physical differences are too subtle. Better sedimentological models gave better reserve and resource estimates.
Description
Related Products
Micro-algal Systems for Carbon Capture, Metal and Energy Recovery using Mine Waters
2026
Laboratory and pilot work on indigenous South African microalgae used to treat metal-bearing mine water while capturing carbon, with biomass profiling, bioenergy routes and a preliminary techno-economic assessment.
What this report foundA four-strain polyculture of microalgae isolated in the Mpumalanga and Gauteng coalfields held its growth and carbon uptake at five times the metal load of the...
Cost Evaluation of Different Medium Solids for Air Dense Medium Fluidized Bed Coal Separation
2017
University laboratory work on air fluidised bed separation, testing pyrrhotite, blast furnace slag, silica sand and coal discards against magnetite, for engineers considering waterless coal washing.
What this report foundMagnetite and pyrrhotite each gave the most uniform and stable fluidised bed densities, with bed density variation under 0.7 per cent.