 | | Journal (issue) | | Rocks and Minerals of Ontario -- H f ONTARIO DEPARTMENT OF MINES AND NORTHERN AFFAIRS Honourable...and Minerals of Ontario By D. F. HEWITT Chief, Industrial Mineral Section Ontario Department of Mines...Early Precambrian pillow lavas; Munekun Lake, District of Kenora. (Courtesy L. D. Ayres). Lower right: Cleavage... (Courtesy The International Nickel Company of Canada, Limited). Centre left: Eurypterus lacustris, an...about 400 m.y. ago; Welland County. (Courtesy Shell Canada Ltd.). right: left: — — — Centre right: Archaeocrinus |  | | Report (issue) | | Energy, Mines and Resources Canada E:nergie, Mines et Ressourees Canada Canada THE ENERGY OF OUR RESOURCES...OUR IDEAS COVER Left: Amethyst - Thunder Bay, Ontario. Specimen measures 4.5 cm across the base. National...no. 17206. GSC 204971-1 Geological Survey of Canada Miscellaneous Report 49 ROCKS AND MINERALS FOR... © Minister of Supply and Services Canada 1991 Available in Canada through authorized bookstore agents...bookstores or by mail from Canada Communication Group - Publishing Ottawa, Canada KIA OS9 and from. Geological |  | | Journal (article/letter/editorial) | | Democratic Republic of the Congo (DRC). The Zambian district comprises deposits that are folded but intact...breccias of probable evaporitic origin. The Congolese district comprises deposit fragments that occur within...geometallurgy is not new, but its modern holistic mine value chain application can be considered a critical...provide the practitioner with a means to optimise the mine schedule and metallurgical processes. The geometallurgical...modern trend towards efficient project evaluation, mine optimisation and risk management. With more complex |  | | Report (issue) | | GEOLOGICAL ASSOCIATION PRECAMBRIAN ee OF CANADA SULPHIDE SPECIAL PAPER 25 DEPOSITS H.S. Robinson...Department of Geology, University of Western Ontario, Losdon, Ontario N6A 5B7 C.D. Spence, Rio-Canex Inc.,...Franklin, Geological Survey of Canada, 601 Booth Street, KIA 0E8 Ontario International Standard Book...the Geological Association of Canada. Geological Association of Canada Department of Earth Sciences University...Waterloo Waterloo, Ontario Canada N2L 3G1 Printed by: Johanns Graphics, Waterloo, Ontario AnNnnnnualtceea |  | | Journal (issue) | | Cornwall mines and those of French Creek, the Grace Mine and the Kibblehouse Quarry. Articles on several...Add $3.00 for subscriptions outside the U.S. and Canada. Foreign subscriptions must be paid in U.S. dollars...in their heyday. These fields still form the wall mine was only recently flooded after 200 source of the...magnetite-chalcopyrite mines and the Phoenixville lead-zinc district have yielded many of Pennsylvania's rarest species...the Kittanning cannel coal at the I. F. Mansfield mine near Darlington, Beaver County, Pa., the Upper Kittanning |  | | Report (edition) | | with cubic and octahedral cleavages, Pequea silver mine; middle left: azurite crystals on calcite, “old”...from the owners of the land, from the quarry or mine operators before entering to collect. (Land ownership...tested copper by Benjamin Franklin. In 1732 Gap mine land was owned by the honorable Proprietors Thomas...County mines of the 69 Phoenixville lead-zinc district Coatesville pegmatite and pyrrhotite localities...magnetite-chalcopyrite mines Graphite locality State line district feldspar quarries Clinton County Salona calcite-dolomite |  | | Report (volume) | | modeling. Our colleagues in the Geological Survey of Canada have preceded this effort by publishing a superb...compilation of models of deposits important in Canada (Eckstrand, 1984). Not surprisingly, our models...volcanogenic massive sulfide deposits in eastern Canada and for carbonate-hosted zinc in east Tennessee...rock types 133 Cross section through the Kalavos district Cyprus showing relationship of massive sulfide...and J. M. Franklin of the Geological Survey of Canada, and by Ryoichi Kouda, Takeo Sato, and Yukio Togashi |  | | Book (edition) | | as white ash. It grows along the west coast of Canada. Blue ash, F. quadrangular, grows in the central...of earthy matter. It is obtained at Athabasca, Canada, in tar sands which are strip-mined. In general...balsan1ea of the northeastern United States and Canada. It is bro\vnish white and soft and has a fine...formerly used as a transparent adhesive. Canada balsam, or Canada turpentine, is a yellowish, viscous oleoresin...pubescens, all native to the United States and Canada. The European limewood, from the tree T cordata |
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