All of these primary styles are overprinted by supergene processes to produce i).
Lower Marble - a thick zone of grey, fine to medium-grained cryptocrystalline calcic marble, very similar to the Upper Marble.
The marble is generally massive but becomes weakly foliated adjacent to external and internal contacts with clastic rocks.Geometallurgy involves a quantified and comprehensive approach to ore characterization in terms of critical processing attributes: including blasting, crushing, grinding, liberation, recovery and environmental management.Exploration techniques for porphyry and epithermal deposits are discussed and current results are evaluated in terms of various genetic models.The primary sulphide mineralisation in all three types is predominantly chalcopyrite, with local minor bornite and some gangue pyrite, the latter being more evident in NW Pit.Relatively dense vein swarms (with 1m spacing) will generally have alteration and mineralisation over the entire intervein vein interval, although the outer margin of the swarm will only be altered and mineralised over a few cms.However, as the Mwashya Subgroup is typically clastic in nature, Gregory.Transitional (mixed oxide-sulphide and iii).In general the oxide zone tends to follow the morphology of the primary sulphide vein sets.Course Leaders: Dr Rob Scott, Dr Matt Cracknell, ore Deposit Models and Exploration Strategies (KEA701/KEA712 next course October 22nd - November 2nd, 2018 (Repeated every even numbered year).The vein mineralogy is predominantly quartz-carbonate-sulphide with occasional molybdenite and magnetite.Although grades can range from.5 to 1 Cu, typically 30 is acid soluble, and as a result it is not regarded as being economically viable.Key outcomes of improved geometallurgical knowledge are improved forecasting, reduced technical risk, enhanced economic optimization of mineral production, and improved sustainability.Deposit styles covered include vhms, Broken Hill Type, Proterozoic Cu-Au, Porphyry Cu-Mo-Au, Skarn Deposits, Sediment Hosted Massive Sulfides and Epithermal Au-Ag.The doming of the Kansanshi antiform in the deposit area is interpreted to be the result of a local F2 anticline.S7R students should enrol using the original unit codes (KEA701 - KEA706).This course provides an introduction to the processes and products of different eruption styles, contrasts in scale and structure of volcanoes, identification of key duration of transmission slot doppler frequency volcanic facies associations and interpretation of facies variations.Mineralisation The mineralised area originally outcropped as a conspicuous treeless hill with spectacular copper staining, due to impregnation of the host rocks with copper oxides that impart a distinctive blue-green colouration, known as the Green Wallrock.Lower Calcareous Schist - a sequence of calcareous schists, calcareous biotite schists, marbles, knotted schists and phyllites, with considerable thickness variations, from 80 m in the NW pit to 40 m in the Main poker e whisky Pit.A number of steep, north-south trending D2(?) shear zones cut the domes.The dominant vein orientation in the Main Zone is a north-south set of metre-scale veins that have been traced over a strike length of up.8 km, and were exploited in the old underground workings.David Cooke, Dr Lejun Zhang, for More Details: Download most recent flyer (PDF 753KB).
More information on jocuri casino online free each course will be made available nearing its commencement date.
Course Leaders: Dr Rebecca Carey, Dr Martin Jutzeler, Prof David Cooke, exploration in Brownfield Terrains (KEA705/KEA710 next course June 11th - 22nd, 2018 (repeated every even numbered year).