Global ETD Search
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 7 of 7 for “"Diamond Drill"”.
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Petrography of Precambrian iron formation, Pembina County, North Dakota
… bodies producing the magnetic anomalies were drilled and examination of diamond drill core showed them to consist of oxide and silicate facies iron formation interlayered with quartz-biotite schist of Precambrian age. The core recovered from the Akra site contained mineral assemblages of the …
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The geology, petrography, geochemistry and uranium ore mineralogy of the Namibplaas sheeted leucogranites, Damaran orogen, Namibia
… review of historical data, ground mapping, diamond drill core logging and sample preparation, thin section preparation, geochemical analyses and uranium ore mineralogical investigation. At Namibplaas, the Damaran sequence is most complete; the B-types are least abundant and are localised to …
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Petrography, chemical composition, and stratigraphic setting of the coals of North-Central Missouri
… the Missouri Geological Survey undertook a core drilling program to learn more about the coals in north-central Missouri. The stratigraphic setting and chemical and petrographic characteristics of 43 complete samples of coal recovered from 13 diamond drill holes in the exploration program in …
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Hydrogeochemical exploration at Tsumeb
… waters. This proved to be impossible. (b) drilling four diamond drill holes near selected anomalies and studying the cores in detail. These revealed that the Kalahari beds were very thick (46 to >103m). In all cases the base of the overburden was far below the present water table and in …
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The geological and grade continuity of the Pajingo epithermal gold system
… to be created through the ordinary kriging of diamond drill sample data. Directional variography produced plots that adequately described the spatial continuity between the samples, and block models with 10m x 10m cell dimensions produced mean kriged grade estimates that closely resembled the …
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Patterns of Lithology, Structure, Alteration, Trace Elements, Carbonate Mineralogy, and Stable Isotopes around High-Grade Carlin-type Gold Deposits: Turquoise Ridge Deposit, Getchell District, Nevada
… and trace element anomalies. Closely-spaced diamond drill holes along two cross-sections across the High Grade Bullion (HGB) ore zone at the north end of Turquoise Ridge were logged in detail. The logging information, gold assays, multi-element analyses, and spectral reflectance analyses were …