Practical methods for correlating diamonddrill core intersections: Applications to complex vein-type orebodies

Abstract Two practical methods for correlating two or more diamond-drill core intersections, using a stereographic projection software are presented. The first may be used to establish if two or more
vein intersections are correlative, based on their core angles and diamond-drillhole attitudes. The
second method allows prediction of main vein attitudes from numerous intersections, based on a spherical density contouring projection. The methods are suitable for: (1) correlating veins in complex orebodies; (2) ascertaining lateral continuity of ore for reserve estimations; (3) demonstrating the hidden complexity of an orebody; and (4) correlating and interpreting various planar elements.
Keywords: Geology, Diamond-drill core intersections, Complex vein-type orebodies.
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Summary: In this study, the vapour phase reduction of titanium tetrachloride conforms to the traditional
Kroll chemistry, but employs argon as an inert carrier gas and requires a higher reaction temperature of 1150°C to 1250°C. A vapour phase reaction is advantageous because titanium is the only condensed phase present, and the metal can be collected free of magnesium or magnesium chloride, in marked contrast to the titanium sponge produced by the conventional Kroll process. The yield of metallic...
Publication: CIM Bulletin
Author(s): D.G. Tisdale
Keywords: Metallurgy, Titanium.
Issue: 1008
Volume: 90
Year: 1997
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Summary: This two-part paper summarizes the design and implementation of a distributed PIbased control strategy installed at the B grinding circuit, at the Kidd Creek Division of Falconbridge Ltd. Part I details the design of the control strategy using a grinding circuit dynamic simulator (DYNAFRAG). The first step consisted of sampling campaigns and data processing to calibrate DYNAFRAG. Then, several control alternatives were designed and tested with the simulator. The main feature of these...
Publication: CIM Bulletin
Author(s): F. Flament, A. Desbiens, R. del Villar
Keywords: Mineral Processing, Grinding plants, DYNAFRAG.
Issue: 1008
Volume: 90
Year: 1997
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Summary: The Highland Valley Copper partnership was formed in July 1986 as a logical result of a mine with a large ore reserve but a small mill, and a mine with a large, modern mill but dwindling ore reserves. The original partnership of Cominco and Rio Algom was expanded in January 1988 to include Highmont Mining Company. During 1988/89 the Highmont mill was moved 7.5 km to adjoin the Lornex mill, becoming the Highland mill in the process, with a nominal capacity of 130 000 tonnes per day.
The mine...
Publication: CIM Bulletin
Author(s): D. M. Richards
Keywords: Coal mining, Computer applications, Global Position Systems (GPS), Geographical Information Systems (GIS), Highland Valley Copper, Technology.
Issue: 1008
Volume: 90
Year: 1997
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Summary: During the summer of 1994, a new PIDbased control strategy was installed on line B of the grinding circuit at the Kidd Creek Division of Falconbridge Ltd. Part I of this paper described the methodology used to select the appropriate control strategy using a phenomenological dynamic simulator. Part II presents the implementation of the control strategy. Prior to the controller installation, it was necessary to solve various problems related to the process, such as a cyclic behaviour of the rod...
Publication: CIM Bulletin
Author(s): A. Desbiens, F. Flament, A. Pomerleau
Keywords: Mineral processing, Grinding circuits.
Issue: 1008
Volume: 90
Year: 1997
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