The Geologist, 4. köideSamuel Joseph Mackie Reynolds, 1861 |
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abundant Ammonites animals appearance beds belong bones boulders Brachiopoda British calcareous carbonate Carboniferous cavern Cephalaspis chalk clay cliff coal coal-field coast colour containing Cornbrash crustacean deposits depth described Devonian discovery district drift earth elevation England evidence existence extinct fact fauna feet flint implements flint-implements formation fossils fragments Gayhurst genus Geol Geological Society geologists gneiss gravel grey Hill Hoxne hundred inches interesting iron island itacolumite land Lias limestone locality lower M'Coy miles mineral mountains nature nearly observed occur Old Red Sandstone Oolite organic Oxford clay paper period Permian pits portion present probably Prof Professor Pteraspis quarry quartz R. I. Murchison remains remarkable river rocks sand schist Scotland seam shale shells side Sigillaria Silurian species specimens stone strata supposed surface Tertiary theory thickness thousand tion Torbane upper valley
Popular passages
Page 232 - My heart is awed within me when I think Of the great miracle that still goes on, In silence, round me, — the perpetual work Of thy creation, finished, yet renewed Forever.
Page 305 - ... the first creation of the earth and that day in which it pleased God to place man upon it, who shall dare to define the interval? On this question, scripture is silent: but that silence destroys not the meaning of those physical monuments of his power which God has put before our eyes, giving us, at the same time, faculties whereby we may interpret them and comprehend their meaning.
Page 19 - The manner in which they lie would lead to the persuasion that it was a place of their manufacture and not of their accidental deposit; and the numbers of them were so great that the man who carried on the brick-work told me that, before he was aware of their being objects of curiosity, he had emptied baskets full of them into the ruts of the adjoining road.
Page 302 - Sanskrit — yet all indubitably of one family of languages! What years were required to create the existing divergence of members of this family! How many more for other families, separated by a wide gulf from this, yet retaining traces of a primeval...
Page 425 - Ross, is the oldest rock formation on the British Isles, it being unknown in England, Wales, or Ireland. It is well known that the temperature increases, as we descend through the earth's crust, from a certain point near the surface, at which the temperature is constant. In various mines, borings, and Artesian wells, the temperature has been found to increase about 1° Fahrenheit for every sixty or sixty-five feet of descent.
Page 361 - ... of the earth's crust must have on the ejection of molten rock, the author observed that, in his opinion, the action of shrinking is the only one that we know of that will afford any solution of the phenomena treated of in this paper, namely, long lines of depression accompanied by long lines of elevation, often, as in the case of the British Isles, Spain and Portugal, and elsewhere, belonging to parts of huge polygons broken up into small ones, as if the surface of the earth had once formed part...
Page 305 - Between the first creation of the earth and that day in which it pleased God to place man upon it, who shall dare to define the interval ? On this question Scripture is silent : but that silence destroys not the meaning of those physical monuments of his power that God has put before our eyes ; giving us at the same time faculties whereby we may interpret them and comprehend their meaning.
Page 520 - Palaeontology further teaches that not only the individual but the species perishes ; that as death is balanced by generation, so extinction has been concomitant with the creative power which has continued to provide a succession of species ; and furthermore, that as regards the various forms of life which this planet has supported, there has been an advance and progress in the main.
Page 506 - T"he stratified rocks of the highest antiquity, such as the oldest gneiss or quartz rocks, have seldom borne gold ; but the sedimentary accumulations which followed, or the Silurian, Devonian, and Carboniferous (particularly the first of these three), have been the deposits which, in the tracts where they have undergone a metamorphosis or change of structure, by the influence of igneous agency or other causes, have been the chief sources whence gold has been derived.
Page 426 - Britain, and associated as they are with much granitic and hornblendic matter, they are, for all purposes of the practical geologist, "azoic rocks." The Cambrian rocks, or second stage in the ascending order as seen reposing on the fundamental gneiss of the north-west of Scotland, are purple and red sandstones and conglomerates forming lofty mountains. These resemble to a great extent portions of the rocks of the same age which are so well known in the Longmynd range of Shropshire, and at Harlech...