The Quarterly Journal of the Geological Society of London, Volume 22The Society, 1866 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Página xlii
... The ascertained existence of the true Coal - measures within the limits of the province is very important . 4. The view formerly entertained respecting the granite belt passing xlii PROCEEDINGS OF THE GEOLOGICAL SOCIETY .
... The ascertained existence of the true Coal - measures within the limits of the province is very important . 4. The view formerly entertained respecting the granite belt passing xlii PROCEEDINGS OF THE GEOLOGICAL SOCIETY .
Página xliii
Geological Society of London. 4. The view formerly entertained respecting the granite belt passing through the province must be greatly modified . Instead of one broad belt it consists of a series of very narrow belts , with in ...
Geological Society of London. 4. The view formerly entertained respecting the granite belt passing through the province must be greatly modified . Instead of one broad belt it consists of a series of very narrow belts , with in ...
Página xlvi
... passes . A large proportion of the Silurian fossils are from Guneejunga in the Chorhoti Pass , at an elevation of 17,000 to 17,500 feet above the sea . The existence of these fossils was first made public by Col. Strachey in a paper ...
... passes . A large proportion of the Silurian fossils are from Guneejunga in the Chorhoti Pass , at an elevation of 17,000 to 17,500 feet above the sea . The existence of these fossils was first made public by Col. Strachey in a paper ...
Página lv
... passing , by a gradual increase of the calcareous ele- ment , into the overlying bed g 3 , consisting of limestone resembling altogether the bed g 1 , the whole forming such a complete system of superposition and gradual passing of one ...
... passing , by a gradual increase of the calcareous ele- ment , into the overlying bed g 3 , consisting of limestone resembling altogether the bed g 1 , the whole forming such a complete system of superposition and gradual passing of one ...
Página lxxx
... passing into kaoline , syen- ite , pegmatite , micaceous porphyry , and many others ; also the ex- ternal forms and structure of these masses , many of which are very remarkable , caused chiefly by the unequal decomposition of the rock ...
... passing into kaoline , syen- ite , pegmatite , micaceous porphyry , and many others ; also the ex- ternal forms and structure of these masses , many of which are very remarkable , caused chiefly by the unequal decomposition of the rock ...
Outras edições - Ver tudo
The Quarterly Journal of the Geological Society of London, Volume 2 Geological Society of London Visualização integral - 1846 |
The Quarterly Journal of the Geological Society of London, Volume 28 Geological Society of London Visualização integral - 1872 |
Palavras e frases frequentes
abundant Alethopteris amygdaloidal appear areoles Argillaceous underclay Argillo-arenaceous underclay beds belong Brachiopoda Brongn Brown Calamites calcareous Carboniferous Limestone Chalk character Chillesford coal Coal-formation Coal-group Coal-measures coaly shale conglomerate contains Cordaites deposits described Devonian district drift Eocene Eozoon fauna feet ferns formation fossiliferous fossils fragments genera genus Geol Geological glacial gravel Grey shale Guppy Hill inches ironstone Joggins Journ layer Lepidodendron Lepidophloios Lias London Clay Lower marine marls masses metamorphic miles mineral Miocene noticed numerous occur Old Red Sandstone Ophite Ostrea pebbles plate portion posterior present Prof Quart R. I. Murchison resemblance Rhætic ribs River rocks sand seen serpentine shale shells Sigillaria siliceous Silurian Sir R. I. Murchison slates Society Southerndown spec species specimens Stigmaria stone strata structure surface Sutton series Sydney Tertiary thick tissue underclay upper valley valve
Passagens conhecidas
Página 66 - Results of Meteorological Observations made under the direction of the United States Patent Office and the Smithsonian Institution, from the year 1854 to 1859, inclusive, being a Report of the Commissioner of Patents made at the first session of the 36th Congress.
Página 47 - Ibid., pp 347-350. 27. On Graptolites, their Duration in Geological Periods, and their Value in the Identification of Strata. Ibid., pp.
Página 389 - PENROSE'S (FC) Principles of Athenian Architecture, and the Optical Refinements exhibited in the Construction of the Ancient Buildings at Athens, from a Survey. With 40 Plates. Folio.
Página lii - Bohemia, in a specimen of gneiss from near Moldau, and in a specimen of serpentinous limestone sent to Sir Charles Lyell by Dr.
Página xv - The following communications were read : — 1 . " Additional Observations on the Raised Beach of Sangatte, with reference to the date of the English Channel, and the presence of Loess in the Cliff-section.
Página 103 - In a passage, which is the continuation of that already cited, he writes : — " (3) The microscopical structure and chemical composition of the beds of cannel coal and earthy bitumen, and of the more highly bituminous and carbonaceous shale, show them to have been of the nature of the fine vegetable mud which accumulates in the ponds and shallow lakes of modern swamps.
Página 103 - ... (4) A few of the underclays, which support beds of coal, are of the nature of the vegetable mud above referred to ; but the greater part are argilloarenaceous in composition, with little vegetable matter, and bleached by the drainage from them of water containing the products of vegetable decay. They are. in short, loamy or clay soils, and must have been sufficiently above water to admit of drainage.
Página xxxv - In 1848 he was made first-class Assistant in the department of Geology and Mineralogy in the British Museum. He published but one independent work, a ' Manual of Recent and Fossil Shells,' of which the first part appeared in 1851, and the two folio win
Página 321 - Devon," p. 5. 1865. t Quar. Journ. Geol. Soc., vol. xxiL, pages 344-5. 1866. than their conclusions. I fully admit that the rocks near Lynton appear to be the lowest, and that there appears to be a regular ascending succession of rocks from Lynton to the latitude of Barnstaple. I am, however, compelled to dispute the reality of this apparent order of succession, and to suppose that there is either a concealed anticlinal, with an inversion to the north, or, what I believe to be much more probable,...
Página xxxi - On the Determination of the Distance of a Comet from the Earth, and the Elements of its Orbit; 3. Account of the ' ' Traité sur le flux et reflux de la Mer," of Daniel Bernoulli ; and a Treatise on the Attractions of Ellipsoids.