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Quaternary Geology and Geomorphology
6 Singhampton Moraine crosscutting Guelph drumlin field east of Orangeville
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amphibole argillite arkose basalts Beaverhead Island beds Blanchard Lake Burwash Lake Caledon chlorite clastic clay conglomerate Cotton Township deposits diabase dikes Division of Mines drill east esker feet feldspar felsic foliation Frechette Township gabbro Garafraxa Geol Geology glacial Glass Bay gold Gowganda Gowganda Formation grains granitic rocks gravel Hockley Valley Hudson Township Huronian interbedded iron formation Karrow Lake basalts Lake Timiskaming Lakes area Liskeard located Lorrain Formation mafic mafic flow mafic metavolcanics magnetite Manitou Island Manitou Straits Fault matrix McNamara Township Merrill Lake metamorphic metasediments miles minerals Moraine Nipissing Diabase Nipissing gabbro northeast northwest occur Ontario Dept Ontario Division Orangeville Orangeville area Orangeville Moraine outcrop outwash percent Photo plagioclase Pleistocene porphyry Precambrian pyrite pyroclastic rocks quartz veins River sample sand sandstone scale 1 inch Scattergood Lake Stock schist sediments sequence shear zone shore silt siltstone southeast southwest Stadial sulphide Tavistock texture thick Thomson volcanic