Annual Report of the Quebec Bureau of Mines for the Calender Year ..., Part 3 |
Contents
LACHUTE MAPAREA | 5 |
Honourable ONÉSIME GAGNON Minister L A RICHARD DeputyMinister | 6 |
GENERAL GEOLOGY | 11 |
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amount anorthosite appears associated bands Beauharnois beds body boulders Canadian carbonate Champlain Chatham township clay colour common Company crystalline deposits diopside dolomite dykes east economic elevation extending fault feet feldspar formation formed front Geol geological gneiss grains granite gravel Grenville Grenville series hills igneous important intrusive kaolin known Lachute lake later Laurentian less limestone Limited localities lower magnesite masses material McGill University mentioned mica miles minerals Mines Morin series Mountain Nord river observed occur opened ore-zone origin Ottawa Palaeozoic places PLATE Pleistocene possible Potsdam Precambrian present probably pyroxenite quarry quartz quartzite Quebec range Recent relationship relatively Rept result rocks Sample sand sandstone separated serpentine sheet shown side silica similar structure suggest surface Surv TABLE terrace thick township valley veins wide Wilson writer zone