Annual report . are younger than the later granite (Algoman) which intrudes the earlier sedi-ments. This failure to recognize the stratigraphic position of the later sediments hasled to great confusion, not to say amusing controversies. It so happens that the con- 1 Geology or Canada, !^>;:: 130 Bureau of Mines No. 4 glomerate and other rocks of the later group of sediments (Animikean) are in themore conspicuous outcrops, or in localities that have been examined by most investi-gators, and these rocks have, in almost all cases, been classed as Lower Huronian,indicating that they are at the
Annual report . are younger than the later granite (Algoman) which intrudes the earlier sedi-ments. This failure to recognize the stratigraphic position of the later sediments hasled to great confusion, not to say amusing controversies. It so happens that the con- 1 Geology or Canada, !^>;:: 130 Bureau of Mines No. 4 glomerate and other rocks of the later group of sediments (Animikean) are in themore conspicuous outcrops, or in localities that have been examined by most investi-gators, and these rocks have, in almost all cases, been classed as Lower Huronian,indicating that they are at the base of the pre-Cambrian sedimentary series of theregion. The younger granite or gneiss (Algoman), on the eroded surface of whichthis later conglomerate has been found to rest, has been mistaken for the Laurentian(See Van Hise and Leith, Bull. 360, , pp. 414-415, 425-426, 435 et seq., andA. C. Lawson, A Standard Scale for the pre-Cambrian Rocks of North America, Congress, 1913, pp. 12 and 21)..
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectminesandmineralresou
