Kwekwe colonial empire builder who was closely connected with the early development of Rhodesia (Zimbabwe's former name). Kwekwe was originally a gold mining camp and is today characterised by the large mines in its vicinity producing gold, and the chrome ore and iron ore used in steelmaking. Four gold deposits within the Kwekwe district have been studied. The Primrose and Globe and Phoenix gold deposits display typical features of Archean orogenic lode gold systems such as fluid inclusions with low salinity, mixed aqueous-carbonic fluids, formation temperatures between 300 and 400 °C, and a common stable isotope composition of fluid and mineral
Tournament of the Towns The problems are mostly combinatorial, with the occasional geometry, number theory or algebra problem. They have a different flavour to problems seen in other mathematics competitions, and are usually quite challenging. Some of the problems have become classics, in particular two from the Autumn 1984 paper. The first competition, held in the 1979–1980 academic year, was called the Olympiad of Three Towns. They were Moscow, Kiev and Riga. The reputation of the competition grew and the following year, it was called Tournament of the Towns. The Tournament of the Towns was almost closed down in its early years of development