Guide books of excursions in Canada1-10 . marble, where the bodies of therock are very thick, small remnants of the original bluelimestone can occasionally be found, as is indicated onthe map in the township of Monmouth. Enormous bodies of nearly pure limestone occurin many parts of the area; but elsewhere this limestoneis impure, owing to the presence of grains of varioussilicates distributed through it, or to the presence of littlebands of silicates representing impurities in the originallimestones, which, under the influence of metamorphism,develop into gneisses and amphibolites of various
Guide books of excursions in Canada1-10 . marble, where the bodies of therock are very thick, small remnants of the original bluelimestone can occasionally be found, as is indicated onthe map in the township of Monmouth. Enormous bodies of nearly pure limestone occurin many parts of the area; but elsewhere this limestoneis impure, owing to the presence of grains of varioussilicates distributed through it, or to the presence of littlebands of silicates representing impurities in the originallimestones, which, under the influence of metamorphism,develop into gneisses and amphibolites of various these little gneiss bands or amphibolite bandsbecome increasingly abundant, the limestone passesover into paragneiss or into some one of the varieties ofamphibolite. (b) Quartettes. Quartzite is not common in this area, the most ex-tensive development being that which occurs as a bandcrossing the township of Monmouth. It is found inter-stratified with crystalline limestones and rusty-weatheringgneisses of sedimentary
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1913
