NATURAL RESOURCES AND DEVELOPMENT VOL.21
- 127 pages
1. A model for estimating the economic and geological potential of non-metallic raw materials / Walter Lorenz 2. Determination of water levels in observation wells by measurement of transit time of ultrasonic pulses and calculation of hydraulic parameters / Reinhold Kohlmeier, Wilfried Giesel and Gunter Strayle . 3. Appraisal of talc bodies of the Ilesha district, Southwestern Nigeria, and their potentials for industrial applications / Anthony Azubuike Elueze and S.O. Ogunniyi 4. The search for ore deposits in the third world - Chances of success / Artur. G. Poschl 5. Water wheels for rural developing areas / Jurgen Herb 6. The situation of tin mining in South-East Asia with particular reference to small-scale mining / Dieter Gartner 7. A floating pumping plant for developing countries / Rudolf Wieser 8. Production and storage technologies / Hans- Georg Graf, Hans-Gunter Haddenhorst, Wilhelm Rischmuller and Wolfgang de la Sauce 9. Conceptions for processing the pyrite-bearing phosphorite of Abu Tartur / Eberhard Gock and Karl-Heinz Jacob 10. The world's food and energy requirements - A global conflict for resources / Waither Manshard.