. Ontario Sessional Papers, 1914, r samples of fine-grained greenstone a basaltic texture can be observedshowing rods of plagioclase set in a groundmass of pyroxene or hornblende, which isgenerally altered to chlorite. What is believed to be the spherulitic structure in greenstone was observed on thenorth shore of Doig lake in the north part of Lebel township. This structure is indi-cated by small raised and rounded masses which are lighter in color than the surround-iny; rock. Some of these are over an inch in diameter. They differ quite distinctlyfrom the ordinary quartz and calcite
. Ontario Sessional Papers, 1914, r samples of fine-grained greenstone a basaltic texture can be observedshowing rods of plagioclase set in a groundmass of pyroxene or hornblende, which isgenerally altered to chlorite. What is believed to be the spherulitic structure in greenstone was observed on thenorth shore of Doig lake in the north part of Lebel township. This structure is indi-cated by small raised and rounded masses which are lighter in color than the surround-iny; rock. Some of these are over an inch in diameter. They differ quite distinctlyfrom the ordinary quartz and calcite amygdules so frequently observed. They aregrouped quite thickly along the ellipsoids of the greenstone. The broad areas of massive greenish basalt are not likely to be of much economicimportance, but where shear zones occur, and the rocks have been rendered schistose,mpregnated with secondary solutions and intruded by light-colored rocks, they areworthy of prospecting for gold-bearing veins. 1914 The Kirkland Lake and Swastika Qold Areas. Scene on Blanche river, McEIroy township, showing: rocky bluff on right, 150 feet high
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