The Journal of the Canadian Mining Institute, Volume 9Canadian Mining Institute., 1906 |
Contents
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Common terms and phrases
amalgam amount assays Atik-Okan bodies Canada Canadian carried chalcopyrite chlorite chrome coal contains copper cost crusher Department deposits depth diabase diamonds district Dominion drill dunite economic electric epidote feet feldspar felsite furnace gabbro gangue Geological Survey geologists gold Government grade grains granite greenstone hole hornblende igneous rocks inch Institute interest iron jigged laboratory Lake Leckie lode Logan machine magma magnetite mass matte matter McGill University ment metallurgical miles mill mineral Mines Branch mining engineer mining industry Montreal nickel norite occurs Ontario operation outcrop oxide paper peridotite plates portion practical present production pyrites pyroxene pyrrhotite quartz Quebec reports sample scale schist screen secondary sericite shaft shell vein silver slag slate smelting square miles steam steel Sudbury Sudbury District sulphides surface tion tons topographical map width zone
Popular passages
Page 264 - ... and on summary conviction to imprisonment for a term not exceeding four months, with or without hard labour...
Page 264 - ... blocked out"; these two factors should in all cases be kept distinct, as (<i) is governed by fixed rules, whilst (fol is dependent upon individual judgment and local experience. 3. That in making use of the term
Page 264 - Ore in Sight" is frequently used to indicate two separate factors in an estimate, namely: — (a) Ore Blocked Out — that is Ore exposed on at least three sides within reasonable distance of each other — and (6) Ore which may be reasonably assumed to exist though not actually
Page 264 - ... and shall be liable on conviction on indictment to imprisonment, with or without hard labour, for a term not exceeding two years, or to a fine not exceeding five hundred pounds, or to both...
Page 91 - The object of the Survey is to ascertain the mineral resources of the country, and this is kept steadily in view. Whatever new scientific facts have resulted from it, have come out in the course of what I conceive to be economic researches carried on in a scientific way .... thus economics leads to science, and science to economics.
Page 264 - Sight,' by Mr. JD Kendall (Transactions, vol. X), appointed a committee to consider what steps the Institution might usefully take in defining the term ' Ore in Sight.' " The views expressed by leading members of the profession showed a great divergence of opinion as to the definition of the term. " After due consideration and discussion, the Council came to the following decision: — " 1. That members of the Institution should not make use of the term
Page 264 - That Members of the Institution should not make use of the term "Ore in Sight" in their reports without indicating, in the most explicit manner, the data upon which the estimate is based ; and that it is most desirable that estimates should be illustrated by drawings. 2. That as the term "Ore in Sight...
Page 76 - Culture, or features constructed by man, as cities, roads, villages, and the names and boundaries, which are printed in black. This combination of colors renders these topographic maps readily legible. On the reverse of each sheet is a description of the mode of reading the map, and a legend, or series of conventional signs, indicating how the various facts shown on the map are represented. All these conventions are self-explanatory and are readily understood and interpreted by the layman, except,...
Page 76 - The features exhibited on the maps are : 1. Hydrography, or water features, as ponds, streams, lakes, swamps, etc., which are printed in blue. 2. Hypsography, or relief of surface, as hills, valleys, and plains, which are printed in brown. 3. Culture, or features constructed by man, as cities, roads, villages, and the names of boundaries, which are printed in black.
Page 77 - These contours are lines of equal elevation — lines along which the ground would be touched by the border of a water surface (of the ocean, for instance) if it were repeatedly raised by a given amount. Contour lines express three features of relief — (1) elevation, (2) horizontal form, and (3) grade or slope. To explain more clearly the manner in which the contours shown on the maps of the Geological Survey delineate height, form, and slope, the accompanying contour map (Fig.