Geology of the Doyon Mine, Bousquet Township, Abitibi, Quebec
Published:January 01, 1991
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A. Savoie, L. Chenard, N. Bedard, 1991. "Geology of the Doyon Mine, Bousquet Township, Abitibi, Quebec", Control on Base Metal and Gold Mineralizations, Bousquet—Rouyn-Noranda Area, G. Tourigny, P. Verpaelst
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The Doyon Mine, located 35 kilometres east of Rouyn-Noranda, is a joint property held by Cambior Inc. and LAC Minerals Ltd., the latter being the operator.
Gold mineralization was discovered in 1973 as a result of a joint venture exploration between SOQUEM and Silverstack Ltd. Production started at the end of 1979 with the first load of ore shipped to the East Malartic mill on February 1980.
Production statistics, as of January 1st 1990, are 1 0.3Mt ore milled, grading 5.9 g/t Au. Current mining rate is 1,1 Million tonnes (Mt) per year which represents a daily production of 3 000 tonnes (mT). Recovery todate has been 93.0% with 57 016 kg (1 833 000 oz) Au produced.
Figures & Tables
Control on Base Metal and Gold Mineralizations, Bousquet—Rouyn-Noranda Area*
The Archean Abitibi belt is one of the largest and most studied greenstone terranes in the world. This is due not only to its precious and base meta 1 production, but also to its excellent bedrock exposure which permits observation of many Archean geological features in the south part of the belt lying between Rouyn-Noranda and Val d'Or.
The main objective of the regional field trips and the mine visits is to present the rna in stratigraphic, st ructura 1 and ore characteristics of the southern part of the Abitibi Belt. This regional field trip is scheduled to cover the Rouyn-Noranda and Cadi 11 ac-Bousquet mining camps. Operating mines will also be visited: Francoeur, Pierre-Beauchemin, Ansil, Mobrun, Doyon and Bousquet. The delegates will be able to examine the main volcanic, plutonic and sedimentary rocks as well as the various structural features in this part of the Abitibi. Ore deposits will include both massive sulphide and gold deposits. The various geological and structural environments of these deposits will also be examined.
The southern part of the Abitibi Belt in Quebec is dominated by a prominent deformation corridor, the Cadillac-Larder Lake Fault Zone. This zone is oriented E-W and separates a volcanic domain in the north from an essentially sedimentary domain in the south. This sedimentary domain, comprising clastic rocks and various granitic complexes, belongs to the Pontiac Subprovince. The volcanic domain is composed of various “blocks” of volcanic assemblages intruded by granitic masses, separated from one another by fault zones, discordances and inear sedimentary units. On the regional scale, the imbricated volcanic “blocks” are lozenge-shaped, with E-W orientd long axes. In most cases, the relationships between these volcanic and sedimentary “blocks” remain ambiguous.