Now showing items 31-40 of 43
The retail of South African game meat: Current trade and marketing trends
The purchasing and marketing of game meat by supermarkets and butcheries in the Western Cape Province of South Africa was researched by the survey method. Two supermarket groups in South Africa indicated that they do market ...
Population estimation and harvesting potential for game in arid Namibia
We determined the densities of game on mixed game and livestock ranches in arid Namibia over three years using ground survey techniques and distance and point sampling. Annual game yield estimates varied considerably, ...
Long-term effects of elevated atmospheric CO2 on species composition and productivity of a southern African C4 dominated grassland in the vicinity of a CO2 exhalation
We describe the long-term effects of a CO2 exhalation, created more than 70 years ago, on a natural C4 dominated sub-tropical grassland in terms of ecosystem structure and functioning. We tested whether long-term CO2 ...
Controls to hydrothermal gold mineralization in the Witwatersberg Goldfield; situated in the floor to the south of the Bushveld Complex, South Africa
An exploration programme over the Blaauwbank group of gold deposits in the Witwatersberg Goldfield, which lies to the south and in the footwall of the Bushveld Complex, South Africa, has shown that these deposits possess ...
Effect of soil tillage, crop rotation and nitrogen application rates on plant-N content of spring wheat (Triticum aestivum L.) in the Swartland wheat-producing area of the Republic of South Africa
Studies on nitrogen content in spring wheat were conducted during the 2000 and 2001 growing seasons as part of a long-term tillage and crop rotation trial. Four tillage methods were used, namely conventional tillage (CT), ...
The effect of temperature on the germination of six selected weed species
Field-collected seeds were incubated in a germination cabinet at three temperature regimes and germination percentage was determined after incubation. Species such as Arctotheca calendula, Avena fatua, Bromus diandrus and ...
Soil chemistry in South Africa: A quarter century of progress and prospects for the future
[No abstract available]
Controls of gold-quartz vein formation during regional folding in amphibolite-facies, marble-dominated metasediments of the Navachab gold mine in the Pan-African Damara Belt, Namibia
The Navachab gold mine in central Namibia is situated in amphibolite-facies, marble-dominated metasediments of the Neoproterozoic Damara Sequence in the Pan-African Damara Belt. Gold mineralization is hosted by two main, ...
Wall rock alteration and lithogeochemical haloes associated with the sediment-hosted Rosh Pinah Zn-Pb-Ag deposit in the Pan African Gariep Belt, southwestern Namibia
Limitations on the life-of-mine of the sediment-hosted Rosh Pinah deposit urged exploration for extensions to existing ore and similar new deposits in the Gariep Belt. Identification and quantification of hydrothermal wall ...
Distribution and geochemical characteristics of barite and barium-rich rocks associated with the Broken Hill-type Gamsberg Zn-Pb deposit, Namaqua Province, South Africa
Bedded barite forms a distinct component of four Broken Hill-type deposits in the amphibolite-facies metamorphosed Bushmanland sequence of South Africa. In the Gamsberg Zn-Pb deposit, barite has been effectively fractionated ...