Annual report . the preceding paragraph, invadesthe Keewatin greenstone and the Grenville sediments. Dikes of Moira granite intrude the Grenville schist or gneiss at the east end ofMoira lake, about 75 yards west of the point where the Madoc-Tweed road crosses theMoira river. Near the northwest corner of Hungerford township, at the contact of thegranite and Grenville schist, the rocks have been crushed to an autoclastic conglomerate. Coarse-grained pegmatites occur between Actinolite and Flinton. They intersect inevery direction, not only the Laurentian gneissoid granite, but also the Hastings
Annual report . the preceding paragraph, invadesthe Keewatin greenstone and the Grenville sediments. Dikes of Moira granite intrude the Grenville schist or gneiss at the east end ofMoira lake, about 75 yards west of the point where the Madoc-Tweed road crosses theMoira river. Near the northwest corner of Hungerford township, at the contact of thegranite and Grenville schist, the rocks have been crushed to an autoclastic conglomerate. Coarse-grained pegmatites occur between Actinolite and Flinton. They intersect inevery direction, not only the Laurentian gneissoid granite, but also the Hastings con-glomerate. Generally speaking, it may be stated that the basic post-Hastings intrusives areyounger than the acid post-Hastings intrusives. /.< / ?lion of Paleozoic to the pre-CarnVrian.—Horizontal beds of Black River lime-stone with basal sandstone and conglomerate rest witli strong unconformity upon thepre-Cambrian rocks. Areas of these Paleozoic rocks are shown on the map. 58 Bureau of Mines No. 4. x a - - - it n X 3 So x — 16 2=5 z < : $ o ^ • o o i ?^ 5zVj\ S*
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectminesandmineralresou
