[en] Five decades of mining and processing of uranium ore until the beginning of the nineties left abandoned mines, radioactive mining waste and mill tailings in Tajikistan. These remains are a radiological threat to humans and the environment which can hardly be quantified at present. First exploratory measurements indicate that the focus of a regular monitoring should be on the former mining sites Taboshar and Adrasman and the mill tailing in Degmay. An intended cooperation of Forschungszentrum Juelich and Tajik partners should produce the necessary radioecological data and further enhance the scientific capacity in Tajikistan. (orig.)

[en] This paper analyses San Juan Province - Argentina prevailing environmental legislation for mining activity and gravel mines. The study focuses the subject from a mining engineering point of view. (author)

[en] Mine layouts, new machines and techniques, research into problem areas of ground control and so on, are highlighted in this report on extending mine life. The main resources taken into account are coal mining, uranium mining, molybdenum and gold mining

[en] The French Society Miniere et Metallurgique de Panarroya mining railway, 241 km long, was the second largest private narrow gauge railway in Spain. Located in the inland. linked the coal and galena mines with foundries and also with the national railroads grid, to transport the minerals to national and foreign markets. (Author)

[en] The influence of two principally different complexes of uranium mining technologies - traditional mining (underground and open-pit) and underground leaching (from permeable and hard rocks) - on the environment was investigated. The degree of contamination of the ecosystems and its influence on human health were estimated in specific examples. (author)

No abstract available

[en] The requirements of the law which must be met in order to create title to an unpatented mining claim and the procedures which should be followed when an attempt is made to determine the title to the claim is acceptable are reviewed

[en] The 1978 issue of the Mining International Year Book marks the 91st year of publication and contains particulars of the principal and other international companies associated with the Mining Industry. The book is recognized as the foremost reference work of its kind with a coverage both wide and detailed. The many companies registered abroad are distinguished by an entry immediately beneath the title giving the date and place of incorporation; where the date of registration alone is mentioned, the company is registered in the United Kingdom. As in previous years each entry has been reviewed and, where necessary, revised in the light of additional information received since the previous volume. The information thus recorded is the latest available at the time of going to press. Special features of value and interest include cross-reference index to all principal, subsidiary and associated companies in this edition, geographical index, suppliers' directory and buyers' guide, world production table, mining areas of Australia, and professional services section

[en] As the competitive climate of the modern coal industry continues, it seems clear that only by the intervention of small, highly focused workgroups will new efficiency and economy result in the continuous improvement required to survive and prosper. Strategic Alliances, drawing from known and proven principles, can contribute to efficiency and economy. However, individual attitudes and corporate-cultures often must change to foster the growth of functional Strategic Alliances. Motivating personal change in individuals within prospective Strategic Alliance partners is perhaps the most difficult element about establishing a new Strategic Alliance or maintaining an existing Alliance. Ultimately, Strategic Alliances are not fundamentally about corporations, or executives as leaders, but about individuals throughout the endeavors of both partner-organizations and a shared-vision to achieve a common goal

[en] This paper provides an analysis of financial viability, planning and design for the new coal open pit exploitation for La Margarita mine, with coal-resources estimated on 440.139,7 ton. Dimension, design and economic evaluation were possible by three exploitation methods: (multiple bench, open cast contour, and terraces). Net present values (NVP) were calculated: $c 817,5; $c 518,5 and $c 645,2 respectively for each method (given in million current Colombian pesos $. $c 2380 are equivalent to $us 1) and rate of return (ROR) 78,33%; 34,0% and 38,62% respectively for each method. These indicators served as a parameter to choose the multiple bench method, which should be recalculated because it was necessary to work jointly with two pits and making feasible the project. in addition a general environmental evaluation was done, which is vital for the exploitation. Important impacts on the flower, animals, air, water were found, and measures of control, prevention and mitigation were stated. it is expected that this paper can be useful as a technical-economical support for the development of the open pit exploitation in the margarita mine