. The Quarterly journal of the Geological Society of London. Fig. /. D. F., Photomicr. Bemrose Ltd., Collo. Contact-Metamorphosed Albite-Gneiss from Ardlui. Vol. 60.] METAMORPHISM IN THE LOCH-LOMOND DISTRICT. 29 the crystalline schists and less-altered sedimentary rocks. It was feltthat, until a much larger area of the Highlands had been mapped andsome more distinctive stratigraphical horizons had been traced, nodefinite conclusions on the subject could be drawn. The fresh in-formation required had been now supplied by the work of the the horizon of the Green Beds as the key t
. The Quarterly journal of the Geological Society of London. Fig. /. D. F., Photomicr. Bemrose Ltd., Collo. Contact-Metamorphosed Albite-Gneiss from Ardlui. Vol. 60.] METAMORPHISM IN THE LOCH-LOMOND DISTRICT. 29 the crystalline schists and less-altered sedimentary rocks. It was feltthat, until a much larger area of the Highlands had been mapped andsome more distinctive stratigraphical horizons had been traced, nodefinite conclusions on the subject could be drawn. The fresh in-formation required had been now supplied by the work of the the horizon of the Green Beds as the key to the structure ofthe ground, he had shown that the apparently-enormous thickness ofthe rocks could be satisfactorily reduced to much more reasonableproportions, and that folding on a great scale had affected the wholeregion. With the microscope as an adjunct to his field-work, theAuthor had been able to trace an interesting series of metamorphicchanges, from the coarse grits of the Highland Border into highly-crystalline albite-gneisses. He was about to proceed to
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845
