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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"Mineral deposits"”.
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An integrated risk evaluation model for mineral deposits.
The core asset of most mining companies is its mineral resources and reserves. The company produces ore from its reserves, which is a subset of its mineral resources associated with varying levels of geoscientific confidence and uncertainty. One of the key evaluation challenges is to distil …
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Characterisation and monitoring of mineral deposits in down-hole petroleum pipelines.
… of time. The composition and thickness of these deposits vary widely and cannot be reliably quantified at present. Consequently, remedial treatment such as chemical de-scaling etc. are largely based on guess work causing expensive chemical wastage and production shut-downs. This project deals …
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Geology and mineral deposits of the Ketza River mining district, Yukon Territory, Canada
Includes bibliographical references.
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A rubidium-strontium isotopic investigation of the possibility of dating hydrothermal mineral deposits.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1968.
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Development of techniques for detection and dissolution enhancement of mineral deposits in petroleum pipelines using ultrasound.
… The composition and thickness of the scale deposits vary widely, but with present technology they cannot be accurately quantified or monitored. Remedial treatments such as chemical de-scaling etc. are therefore largely based on guesswork, which can lead to expensive chemical wastage and …
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Development of the southern portion of the Platoro caldera complex and its related mineral deposits, southeast San Juan Mountains, Colorado, The
Includes bibliographical references (pages 184-186).
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The Aptian-Albian ironstone of the Rapid Creek formation, Little Fish Creek, NWT: implications for Cretaceous Ocean Anoxic Events and critical mineral deposits
… models tuned for discovering critical mineral (Fe, Mn, P) deposits in Canada.
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Quantifying spatial association between mineral deposits and geology across three African crustal segments of different age, with implication for secular change in mineralization during earth history
Variations in enrichment of mineralization, expressed in ore deposits, in the continental crust may be one way to test for secular changes in crustal genesis. This study collates and analyses fundamental information about mineral deposits with which to 'fingerprint' the metal endowment of African …
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The conflict between the land owner, mineral right holder and the mining title holder in South African mining law
South African law recognises that the right to minerals is one of the rights of ownership of land which can be subtracted from the full dominium It was thus inevitable that the exploitation of South Africa's mineral wealth, in precious stones, precious metals and base minerals, should lead to a …
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Geodynamic Evolution of the Aegean Back-arc and its Implication for Associated Precious and Base Metal Mineralization
… Greece host a range of base and precious metal deposits. Shallow crustal mineral deposits that formed since the late Miocene to active seafloor hydrothermal systems occur in the footwall and hanging wall of the major detachment systems and within all tectono-stratigraphic units. The …
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Physical, chemical and biological controls on the origin, crystallization and dissolution of human kidney stones
Kidney stones are mineral deposits in the renal system that afflict 1 in 11 people worldwide and the incidence and prevalence is increasing globally. Over 70% of stones are composed of calcium oxalate and other mineralogies include struvite, brushite, and apatite. Currently, stones are thought to …
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Taxation principles applicable to the mining industry in South Africa
Ample evidence exists that mining of base minerals and gold by the indigenous peoples of South Africa occurred since ancient times. Many of these mining sites are still preserved and may be visited by those interested in the origins of an industry which has dominated Southern Africa's more recent …
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Application of geographic information system technology to the recognition of prospecting targets in the eastern half of the Tucson Quadrangle, Arizona
… and individuals concerned with the search for mineral deposits use a great deal of information with high spatial content to generate prospecting targets. The information is commonly in the form of maps and may be subjected to a variety of qualitative and quantitative techniques of map analysis, …
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Some factors in the use of roof bolts for mine roof control
… this equilibrium condition was the coal and mineral deposits. As they stand, the stresses acting on coal and mineral deposits are in equilibrium,—any underground mining operation upsets this equilibrium. Shocks due to the unbalancing of stresses often time cause catastrophic roof-falls which …
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The role of financial sector development in economic growth : case study of Botswana
… growth. This has been mainly attributed to mineral deposits which may not be sustainable in the long run. As is Government policy to diversify the economy away from mining, this paper analyses the contribution of financial sector development to economic growth in Botswana using econometric …
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Winning Silver
The search for mineral deposits is a time consuming, risky and very expensive process. Applying new models and methods provides a competitive advantage in the search for mineral deposits because an explorationist can quickly evaluate potential targets and eliminate areas without good potential for …
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Quantification of Permeability-Porosity Relationships in Seafloor Vent Deposits: Dependence on Pore Evolution Processes
Hydrothermal mineral deposits formed along seafloor spreading centers help regulate the transfer of heat and mass from Earth's interior to the oceans. Aqueous fluids circulate within the seafloor and are emitted through vent deposits, formed from interaction between vent fluids and seawater. These …
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Geography, history, and economic performance : the emergence and evolution of agrarian institutions in Ecuador.
… is that certain natural resources like mineral deposits or cash crops can create a "resource curse." In Ecuador, cash crops production did not create this effect. Instead, the agrarian institutions in provinces with cash crops production allowed more wealth accumulation than the …
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The timing, composition, and source of subsurface diagenetic waters responsible for sulfide and carbonate mineralization in solution cavities of the ordovician galena group limestone, North Aurora, Illinois, USA
… the deposition of Mississippi Valley-Type (MVT) minerals in sedimentary basins. Tens-of-centimeter scale calcite crystals concentrically zoned with sulfide minerals and growing within meter-scale solution cavities were recently discovered on the flank of the Michigan Basin in the North Aurora …
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Sediments on the continental margin off South West Africa between latitudes 17⁰ and 25⁰ S
… particular emphasis was placed on the authigenic mineral deposits. On sedimentological grounds, the continental margin is divided by a latitudinal boundary at 18°40' S. This boundary coincides with the northern flank of the Walvis Ridge Abutment, and separates the morphologically distinct Kunene …
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