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  • A contribution to the petrology of the Great Dyke of Nova Scotia 

    Lawrence, Dennis Edward (1966)
    A large steeply dipping, quartz-diabase dyke, over 170 miles long and up to 600 feet wide, cuts Paleozoic rocks in southwestern Nova Scotia. The main minerals are labradorite, pyroxene, quartz: alkali-feldspar and accessory ...