Global ETD Search
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Showing 1 to 4 of 4 for “"diamond drilling"”.
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Acoustic analysis of rock cutting process for impregnated diamond drilling
… important changes with the introduction of diamond-based drilling tools in the last few decades. Impregnated diamond (ID) bits are part of that introduction and their main use is to drill hard and abrasive rock formations. ID core drilling has emerged as the most commonly used technology …
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A preconcentration-spectographic method for the determination of trace elements in plant materials and the application of the biogeochemical method at the Silver Mine lead deposit Cape Breton, Nova Scotia
… the method. The mineralized zone, outlined by diamond drilling, is covered by approximately 50 feet of glacial till. The Ag, Be, Co, Cr, Mo, Ni, Pb and Zn contents of mineral soil (B1), organic soil (A1) (humus), lower bark, upper bark, twigs and needles of balsam fir and black spruce, were …
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An Environmental History Of The 19th Century Marquette Iron Range
… The large amounts of capital involved in diamond drilling exploration, and the operations underground forced industrial consolidation of the many small operations into a few large companies commanding large resources. As mines went underground, the need for timber also increased as …