Report of Progress, Part 1Board of Commissioners for the Second Geological Survey, 1878 - Coal 35 vols. are atlases. |
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Common terms and phrases
appear Argillite Auroral Azoic bands beds belong calcareous Calciferous sandrock Cambrian Champlain division Chazy chloritic conglomerate crystalline limestones crystalline rocks described district dolomites east eastward Emmons epidote fauna feet feldspar formation fossiliferous fossils Geol geological survey geologists Geology of Canada gneiss gneissic granite granular graptolites gray Graywacke green greenish greenstones horizon hornblendic Hudson River Hudson River group Huronian included interstratified Lake Superior latter Laurentian lime limestone lithological Logan Loraine shales Lower Taconic magnesian masses Mather Mesozoic metamorphic mica mica-schists micaceous miles Montalban Mountain northern older organic remains overlying paleozoic Pennsylvania Point Levis portion Potsdam Primal Prof quartz quartzites Quebec Quebec group referred regarded region Rogers sandstones schists seen serpentine shales Sillery south-east southern species stones strata stratified supposed synclinal Taconic rocks Taconic slates Taconic system talcose thickness tion Trenton limestone unconformably Upper Taconic Utica valley Vermont writer York series
Popular passages
Page 244 - America, and of the pietri verdi of the Alps. To this horizon are also to be referred the similar crystalline rocks of the Coast range of California, as seen near San Francisco and San Jose. The auriferous veins which, in the Rocky Mountains, intersect the Laurentian gneisses, are found in the Sierras alike in the Huronian schists and in the eruptive granites, which probably penetrate the Huronian series.
Page 177 - Hocks, pp. 170-172, and p. 177. "fibres and granules of carbonaceous matter which do not conform to the crystalline structure, and present forms quite similar to those which, in more modern limestones, result from the decomposition of algae. Though retaining mere traces of organic structure, no doubt would be entertained as to their vegetable origin if they were found in fossiliferous limestones.
Page iv - JF CARLL — Geologist in charge of the Survey of the Oil Regions. HM CHANCE — Geologist in charge of the Survey of Clinton and Clarion counties.
Page 87 - The opinion was expressed in 1844, that these coastal rocks, or at least a portion of them, are " the equivalent of a part of the Hudson River group of the New York geologists