The plant audit

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Mots clés : Mineral Processing
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Texte
Sommaire: Responding to market developments, interest in locating deposits of wollastonite has grown significantly. The many occurrences in the Grenville marbles of Quebec can be grouped into disseminated-type and discordant vein-type deposits. Disseminated-type wollastonite occurrences have the disadvantages of lower grade, the need for more elaborate mineral separation, and failure to meet "long grain" technical specifications. Vein-type deposits have better grades and technical characteris...
Publication: CIM Bulletin
Auteur(s): Antoine Fournier, Karen St. Seymour
Mots clés: Exploration, Geology, Wollastonite, Grenville marbles, Marbles, Industrial minerals.
Numéro: 957
Volume: 85
Année: 1992
Texte
Sommaire: This paper describes the use of Geographic Information Systems (CIS) as a tool for mineral exploration by using the Eskay Creek area of northern British Columbia as an example. Data entry, analysis and output are discussed. Examples of some of the capabilities of the technology are presented.
The main benefit of the technology is being able to perform complex and sophisticated searches of large and diverse data sets to highlight exploration targets. A GIS is a powerful data management tool...
Publication: CIM Bulletin
Auteur(s): Robert W. Plummer
Mots clés: Computer applications, Geographic Information Systems, Exploration.
Numéro: 957
Volume: 85
Année: 1992
Texte
Sommaire: The Lindsley project was a program of deep drilling to test the contact down-dip from two nickel-copper deposits, one uneconomical and the other mined out. The role of Borehole Pulse EM (PEM) was to detect the higher grade, more massive sulphide zones if they were missed by a drillhole, and to help determine geometry if the zones were intersected. Two problems appeared as the PEM survey progressed: (1) conductivity-thickness as measured by the PEM did not always relate to economic sulphides...
Publication: CIM Bulletin
Auteur(s): D. Crone, T. Watts
Mots clés: Exploration, Pulse EM surveys, Lindsley discovery, Falconbridge Ltd.
Numéro: 957
Volume: 85
Année: 1992
Texte
Sommaire: The Guide to the Evaluation of Gold Deposits reviews the successive evaluation steps in the domains of geology, engineering, and economics. The Guide analyzes, in a systemic perspective, the sequence of exploration, development, and evaluation work required to bring a mineral deposit to production. The aim is to identify the metal/mineralization losses and ore dilution that each work step contributes to the evaluation and mining process. The procedure allows one to maximize the income and...
Publication: CIM Bulletin
Auteur(s): Marcel Vallee, Denis Cote
Mots clés: Exploration, Gold deposits.
Numéro: 957
Volume: 85
Année: 1992
Texte
Sommaire: The Arthur W. White Mine (formerly Dickenson Mine) is a structurally controlled, hydrothermal gold deposit. A gold producer since 1948, it has, to December 31, 1990, processed 6.9 million (m) tons (T) of ore grading 0.45 ounces per ton gold (oz/T Au). As of December 31, 1991, Proven and Probable Ore Reserves were 3.2 m. T. at 0.32 oz/T Au. The mine is located just east of Placer Dome Inc. 's Campbell Mine, within the Cochenour-Gullrock Lake deformation zone. It is situated on the hanging-wall...
Publication: CIM Bulletin
Auteur(s): J.A. Rogers
Mots clés: Exploration, Arthur W. White mine, Red Lake, Dickenson Mines Ltd.
Numéro: 957
Volume: 85
Année: 1992
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