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New conventional K-Ar dates for volcanic rocks from a recently mapped area in northern Tanzania, which includes the large volcano Meru, confirm rift-faulting episodes around 2.1 Ma and 1.2 Ma. Alkaline volcanic activity in the Meru area occurred in two main episodes, the earliest around 2.0–1.5 Ma. The later, main phase began about 0.3 Ma and peaked between 0.15 Ma and 0.06 Ma, although minor activity continued into the present century. Available data suggests that Meru and the neighbouring...
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This short, exploratory paper hopes to trigger further debate, research and other relevant action with regard to teaching economics in a changing South African environment. It is argued that the challenges confronting university teachers of under-graduate economics and the teaching of economics in secondary schools are many and diverse. Not least is the need to add to the teaching of general principles, the teaching of the actual functioning of the South African economy. The authors also...
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Today educational disparity between the sexes is one of the critical Issues in the development of education in the Third World Countries. This hortarticle surveys the status of women's education in Ethiopia prior to 1974. Attempt is made to show that in traditional Ethiopia women had heen excludedfrom getting church and koranic education. and al 'o 'illce the introduction of modern education into the country. at the turn of the century, theirparticipation rate at the various levels of the...
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The Witwatersrand triad contains thick volcanic sequences confined largely to the Dominion Group at the base and the Ventersdorp Supergroup at the top. These volcanic sequences are of late-Archaean to early-Proterozoic age and are amongst the oldest supracrustal volcanic sequences erupted onto the Archaean Kaapvaal craton. The volcanic rocks have suffered low-grade greenschist facies metamorphism but primary textures and, in some samples, primary mineralogies are well preserved. Major and...
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This paper outlines a number of major policies in terms of which predominantly white English medium universities are responding to a rapidly changing South Africa. It identifies key policy challenges that will face such universities and in this context evaluates current policy. Although major characteristics of the past three decades are unlikely to persist, the paper argues that existing policy is not in contradiction with South Africa's developing future provided it is clearly...
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Carbonatite magma can form and erupt within 7 to 18 years, and the event seems associated with prior volcanic eruptions. This determination of magma age is possible because the carbonatite lava and ash which were erupted in 1960–1966 from Oldoinyo Lengai volcano, Tanzania, have the most extreme disequilibria between U and Th series nuclides yet measured in volcanic rocks. At the time of eruption: (228Ra)(232Th) ≈ 27 and (226Ra)(230Th) > 60; (238U)(232Th) > 10, while (232Th)(232Th) = 1.0; and...
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Students from the University of the Witwatersrand (Wits), who took to the streets with their protest against apartheid, are dispersed violently by police with batons and their dogs, Johannesburg, South Africa, 30 May 1986.
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Previous articleNext article No AccessPrimary School Literature and Folktales in Kenya: What Makes a Children's Story African?Thomas Owen Eisemon, Martin Hallett, and John MaunduThomas Owen Eisemon Search for more articles by this author , Martin Hallett Search for more articles by this author , and John Maundu Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmailPrint...