The Quarterly Journal of the Geological Society of London, Volume 20The Society, 1864 - Electronic journals Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Page xliv
... denudation and unconformity , why it should be accompanied by the wonderful generic changes and total change of species that mark the sudden lapse from palæozoic to mesozoic time . St. Cassian and Kössen beds . - But in our country we ...
... denudation and unconformity , why it should be accompanied by the wonderful generic changes and total change of species that mark the sudden lapse from palæozoic to mesozoic time . St. Cassian and Kössen beds . - But in our country we ...
Page xlvi
... denudation , were it not that the order of superposition has been so strongly asserted by men of mark , one would be tempted to suppose that inversion and confusion of the strata has something to do with the presumed order of ...
... denudation , were it not that the order of superposition has been so strongly asserted by men of mark , one would be tempted to suppose that inversion and confusion of the strata has something to do with the presumed order of ...
Page lvi
... denudation of the Oolite strata previous to the Cretaceous epoch , no very obvious hint of the enor- mous lapse of time that lay between the two great marine periods . It is needless for my argument specially to analyze the contents of ...
... denudation of the Oolite strata previous to the Cretaceous epoch , no very obvious hint of the enor- mous lapse of time that lay between the two great marine periods . It is needless for my argument specially to analyze the contents of ...
Page lviii
... denudation has been with us unrepresented by any stratified formation . I must refer to Table V. for the proportions of species common to the Gault , Upper Greensand , Chalk Marl , Lower Chalk , and Upper Chalk ; and an attentive ...
... denudation has been with us unrepresented by any stratified formation . I must refer to Table V. for the proportions of species common to the Gault , Upper Greensand , Chalk Marl , Lower Chalk , and Upper Chalk ; and an attentive ...
Page 7
... denudation , and what a tremendous scouring the country has undergone at one time or other . Although a great portion of the Nile - deposit is evidently the result of denudation going on towards its origin , the vast degradation taking ...
... denudation , and what a tremendous scouring the country has undergone at one time or other . Although a great portion of the Nile - deposit is evidently the result of denudation going on towards its origin , the vast degradation taking ...
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Common terms and phrases
Ammonites appear Avicula contorta Basin beds breccias calice Carboniferous Chalk clay Coal-measures colour columella containing convex corallites corallum Corals costæ Cretaceous D'Archiac deposits described Devonian dissepiments district dorsal drift Edwards & Haime England Eocene epitheca exotheca fauna feet formation fossils fragments France genera genus Geol Geological Society geologists granite gravel Greensand grey Grit Hill inch Inferior Oolite Journ Jurassic Keuper Lias limestone locality Lower Silurian Magnesian margin marl miles mineral Miocene nearly Nivajè shale noticed Nummulitic occur Old Red Sandstone Oligocene paleozoic Permian Permian rocks plate portion posterior present Prof Professor Pteraspis Quart R. I. Murchison Red Sandstone ridges river San Domingo sand sclerenchyma seen septa série shale Shells side silica Silurian Sir R. I. Murchison spec species specimens spines stone strata stratigraphical surface Tertiary thickness tion Trias Upper valley Yoredale Ziphius zone
Popular passages
Page lix - ... the centre outwards, the pith enclosed in a longitudinal canal, and possessed of medullary rays. The fauna is rich, varied, and beautifully preserved. Nearly all the types of life are strictly and peculiarly Mesozoic.
Page 317 - Extension of the Triangulation of the Ordnance Survey into France and Belgium with the Measurement of an Arc of Parallel in Latitude 52° N. from Valentia in Ireland to Mount Kemmel in Belgium By Colonel Sir Henry James, RE, FRS, etc., Director of the Ordnance Survey. 4to vol. London. 1863. Tyneside Naturalists
Page 99 - Annual Report of the Trustees of the Museum of Comparative Zoology. Together with the Report of the Director, 1865.
Page 397 - ... cavirostris, it is not certain that the latter is truly fossil ; nor, if it be so, have we any knowledge of its stratigraphical position. 3. Of the certainly fossil Ziphii, the stratigraphical position of Belemnoziphius longirostris is unknown ; but all the other species of that genus, and Choneziphius planirostris, are derived from the English or Antwerp Crag, and are not known to occur out of it. 4. So that at present we are justified in regarding Belemnoziphius and Choneziphius as true Crag...
Page 108 - It is very gratifying to me to be able to report the gain of two new Corps during the year.
Page lx - ... the interval of time shorter or longer that elapsed between the close of the lower and the commencement of the upper formation; and so it often happens that strata a few yards in thickness, or, more notably still, the absence of these strata, may serve to indicate a period of time as great as the vast accumulations of the whole Silurian series
Page 130 - I concluded the description of this remarkable Arrangement with the following hint at their origin : — " May not the plastic and irresistable agent which picked up the materials composing the Blue Clay, and then melting, left them in their present position, have been largely instrumental in excavating the basins of the great Canadian lakes."* And, in 1860, in a "Narrative of the Canadian Expeditions...
Page xxiv - To promote researches concerning the mineral structure of the earth, and to enable the Council of the Geological Society to reward those individuals of any country by whom such researches may hereafter be made,' — ( such individual not being a Member of the Council.
Page 27 - Paternoster Row. BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE. The next ANNUAL MEETING of the Association will be held under the Presidency of Sir C.
Page 227 - ... has been ground down and washed away by running water. How vast then must be the spaces which this abstraction of matter has left vacant ! how far exceeding in dimensions all the valleys, however numerous, and the hollows, however vast, which we can prove to have been cleared out by aqueous erosion ! The evidences of the work of denudation are defective, because it is the nature of every destroying cause to obliterate the signs of its own agency...