Reconnaissance-Level Geochemical and Radiometric Exploration Data from the Vicinity of the Rabbit Lake Uranium Deposit

Abstract Reconnaissance radiometric and geochemical data have been obtained for an area on the western shore of Wollaston Lake that includes the Rabbit Lake uranium deposit. The study area is extensively drift covered. The geochemical data were obtained by analysis of center-lake sediments and surface waters for a variety of elements and other constituents. The airborne radiometric data comprise measurements of eU, eTh and K obtained with a 50,000-cc Nal (Tl) detector at a mean terrain clearance of ISO m and 5-km flight-line spacing.
Uranium in lake sediments and uranium in waters are the -most effective geochemical indicators of uranium mineralization; the other elements measured are not notably anomalous. A sample site density of one per 13 km2 is more than adequate for identification of the mineralized area. Because many water samples contain close to or below the current analytical detection limit of 0.05 ppb U, the use of sediments is generally favoured for broad-scale reconnaissance in the region. Uranium in these lake sediments appears to be little influenced by variations in the organic or iron and manganese content.
The most effective radiometric indicator of the mineralization is the eU/eTh ratio. This parameter is less influenced by environmental variation on the ground beneath the flight line than eU alone. The eTh/K ratio is anomalous under the Athabasca Formation unconformity where, in places, the uranium mineralization is localized.
Keywords: Mineral exploration, Exploration techniques, Reconnaissance exploration, Geochemical exploration, Radiometric exploration, Rabbit Lake deposit, Uranium, Factor analysis, Statistical data.
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Publication: CIM Bulletin
Author(s): D. B. Haas, W. H. W. Husband, C. A. Shook
Keywords: Slurry pipelining, Coal slurries, Pipeline, Hydraulic transport, Sheerness coal.
Issue: 781
Volume: 70
Year: 1977
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Publication: CIM Bulletin
Author(s): G. S. Barry, G. E. Wood
Issue: 781
Volume: 70
Year: 1977
Text
Summary: The major factors limiting the establishing of vegetation on the shale and sandstone wastes at Minto are high exchange acidity and low pH (shale pH 4-5, sandstone pH <4). In the first revegetation program (1967-7It), 3.8 million trees were planted without grading on 4,000 acres (red, jack and scots pine and black lociist). White dutch and sweet clover, birds-foot trefoil and red top were established in selected areas, and ponds were stocked with brook trout.
In the second phase of reclamation...
Publication: CIM Bulletin
Author(s): D. Abbott, G. B. Bacon
Keywords: Environmental control, Reclamation, Coal mining, Mine wastes, New Brunswick, Shale, Sandstone, Revegetation, Minto deposit.
Issue: 781
Volume: 70
Year: 1977
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Summary: Mineral discoveries and subsequent extraction have led to the establishment of many small communities, some major towns and a few cities. In Canada, such developments have essentially occurred without benefit of long-range regional or local planning. In the past, this was not a cause for concern. Now, however, rising expectations and reorientation of social values have placed increasing responsibility on government and industry to ensure the long-term viability of communities and regions....
Publication: CIM Bulletin
Author(s): D. M. Watson
Keywords: Mineral resources, Resource development, Regional planning, Ore reserves, Town planning, Lead, Zinc.
Issue: 781
Volume: 70
Year: 1977
Text
Summary: In the stretch-bend or bending-under-tension test, a strip is rigidly clamped and restrained at each end and bent by central transverse loading using a radiused punch. The strip deflection at failure has been used as a measure of formability for high-strength low-alloy (HSLA) steels by other investigators. In this work, a detailed study is made of strains developing during stretch bending of an 80,000 Ibf/in2 (552 MPa) yield stress steel using different punch radii. It is shown that toward...
Publication: CIM Bulletin
Author(s): D. K. Uko, R. Sowerby, J. L. Duncan
Keywords: Metallurgy, Materials engineering, Strain distribution, Bending-under-tension test, HSLA steels, Tensile tests, Stretch-bend test.
Issue: 781
Volume: 70
Year: 1977
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Summary: Under the auspices of the Federal-Provincial Uranium Reconnaissance Program, a geochemical orientation survey was undertaken in an area of uraniferous Lower Proterozoic (Aphebian) rocks near Cape Dorset in southwest Baffin Island. The main objective of this study was to establish a methodology for a future reconnaissance geochemical program using lake samples over a 300-mile Lower Proterozoic rock belt that occurs along the southern coast of Baffin Island.
Mineralogical and chemical studies...
Publication: CIM Bulletin
Author(s): Yvon T. Maurice
Keywords: Mineral exploration, Exploration techniques, Geochemical exploration, Uranium exploration, Lead, Baffin Island, Lake waters, Lake sediments.
Issue: 781
Volume: 70
Year: 1977
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Summary: This paper is an attempt to place Canadian Precambrian volcanogenic deposits in perspective, by examining and compiling data regarding certain neglected fundamentals of size, grade, value, frequency distribution and spatial density. The discovery roles played by various exploration methods are compared and contrasted, and, using empirical methods, the probabilities of discovery are discussed, combined with the use of an effective 'cost-per-target' program. From these basic observations,...
Publication: CIM Bulletin
Author(s): J. Boldy
Keywords: Mineral exploration, Exploration techniques, Precambrian deposits, Volcanogenic deposits, Discovery rates, Frequency distribution, Electromagnetic exploration, Copper, Zinc, Data analysis.
Issue: 781
Volume: 70
Year: 1977
Text
Summary: In his March SI, 1977 budget, Finance Minister Macdonald has attempted the delicate balancing act of stimulating the economy without reinforcing the inflationary pressures which Canada is continuing to experience. Several tax changes of benefit to the mining industry, as well as measures designed to encourage oil exploration in frontier areas, are among the budget proposals.
Additional earned depletion of 66-2/3%, which may be offset against income from any source, will be available on...
Publication: CIM Bulletin
Author(s): R. D. Brown
Issue: 781
Volume: 70
Year: 1977
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Summary: A helicopter-mounted lake-sediment and lake-water survey was carried out over Grenville rocks in the Renfrew area (parts of Renfrew and Lanark counties) during four days of October, 1975. In the course of this survey. 1150 square kilometers were covered, with 24.6 lake-sediment and 276 lake-water samples collected from every body of water on which the helicopter could land. Sample sites, which averaged one per 4.6 square kilometers, included lakes, ponds, beaver ponds, swamps and marshes....
Publication: CIM Bulletin
Author(s): W. B. Coker, I. R. Jonasson
Keywords: Mineral exploration, Exploration techniques, Geochemical exploration, Uranium, Grenville Province, Lake sediments, Lake waters, Renfrew area, Molybdenum, Copper.
Issue: 781
Volume: 70
Year: 1977
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