The Quarterly Journal of the Geological Society of London, Volume 21The Society, 1865 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
No interior do livro
Resultados 1-5 de 99
Página xlix
... surface as much rounded and as visibly water - worn as the boulders or colossal pebbles that lie around their bases . He clearly perceived the Paleozoic character of the fossil remains in the limestone of the Valdai Hills , and compares ...
... surface as much rounded and as visibly water - worn as the boulders or colossal pebbles that lie around their bases . He clearly perceived the Paleozoic character of the fossil remains in the limestone of the Valdai Hills , and compares ...
Página liii
... surface of our globe , together with animals which , having run their allotted time , are now extinct . The history of these two extreme periods has recently been remarkably developed , and although many gaps still remain to be filled ...
... surface of our globe , together with animals which , having run their allotted time , are now extinct . The history of these two extreme periods has recently been remarkably developed , and although many gaps still remain to be filled ...
Página lviii
... surface of our globe . The existence of these rocks in the British Islands was first pointed out by Sir R. Murchison in Sutherlandshire and Ross - shire as far back as 1858 , when he applied to them the term of Funda- mental Gneiss ...
... surface of our globe . The existence of these rocks in the British Islands was first pointed out by Sir R. Murchison in Sutherlandshire and Ross - shire as far back as 1858 , when he applied to them the term of Funda- mental Gneiss ...
Página lxviii
... surface ; for wherever the contact was observed between the Oxford clay and the Great Oolite , the existence of numerous holes , caused by rock - boring mollusks , was noticed , as well as Oysters and Serpulæ adhering to the surface ...
... surface ; for wherever the contact was observed between the Oxford clay and the Great Oolite , the existence of numerous holes , caused by rock - boring mollusks , was noticed , as well as Oysters and Serpulæ adhering to the surface ...
Página lxxiii
... the hills by a subterranean channel to the most distant and principal opening by which the water returns to the surface . Cretaceous Formations . - Prof . Pictet of Geneva has ANNIVERSARY ADDRESS OF THE PRESIDENT . lxxiii.
... the hills by a subterranean channel to the most distant and principal opening by which the water returns to the surface . Cretaceous Formations . - Prof . Pictet of Geneva has ANNIVERSARY ADDRESS OF THE PRESIDENT . lxxiii.
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
appear beds Boulder-clay British calcareous Carboniferous character Chloritic clay coast collection containing Corals Crag Cretaceous crown crystalline d'Orb denudation deposits described Devonian diorite disks distinct district Elephant Eocene Eozoon fauna feet felspar flints Foraminifera formation fossils fragments Geol Geological Society Geological Survey geologists glacial glaciers Glauconitic gneiss gneissic granite gravel Hill hornblende Horner inches Inoceramus island Journ Lake Laurentian Lias lime limestone lower Malvern marine marls masses Mastodon metamorphic metamorphic rocks milk-molar mineral Miocene molar Murchison Museum noticed observed occur paper penultimate period Permian plates Pliocene portion posterior present probably Prof Professor pyroxene quartz R. I. Murchison Red Sandstone remains remarkable river rocks sand schists serpentine shales shells side siliceous Silurian species specimens Stegodon stone strata structure surface talon Tertiary thick tion tooth true molar tusks Upper Chalk valley White Limestone width zone
Passagens conhecidas
Página 515 - Guineas each, with every requisite to assist those commencing the study of this interesting science, a knowledge of which affords so much pleasure to the traveller in all parts of the world. * A collection for Five Guineas which will illustrate the recent works on Geology by Ansted, Buckland.
Página 348 - WC, gives practical instruction In Mineralogy and Geology. He can also supply Elementary Collections of Minerals, Rocks, and Fossils, on the following terms :— 100 Small Specimens, In cabinet, with three trays £220...
Página 122 - Ludlow, Devonian, and Carboniferous Rocks. SECONDARY FOSSILS, from the Trias, Lias, Oolite, Wealden, and Cretaceous Groups. TERTIARY FOSSILS, from the Woolwich, Barton, and Bracklesham Beds, London Clay, Crag, &c. In the more expensive Collections some of the Specimens are rare, and all more select.
Página 515 - Specimens, in cabinet, with three trays £2 2 0 *200 Specimens, larger, in cabinet, with five trays 550 300 Specimens, larger, in cabinet, with eight drawers 10 10 0 400 Specimens, larger, in cabinet, with twelve drawers .... 21 О О More extensive Collections, to illustrate Geology, at 50 to 100 Guineas each, with every...
Página 57 - Though the abundance and wide distribution of Eozoon, and the important part it seems to have acted in the accumulation of limestone, indicate that it was one of the most prevalent forms of animal existence in the seas of the Laurentian period, the non-existence of other organic beings is not implied. On the contrary, independently of the indications afforded by the lime-stones themselves, it is evident that in order to the existence and growth of these large Rhizopods, the waters must have swarmed...
Página 50 - ... rock ; and less frequently there are met with lenticular patches of sandstone or granular quartzite, of a foot in thickness and several yards in diameter, holding in abundance small disseminated leaves of graphite.
Página xx - 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.
Página 348 - SOPWITH'S GEOLOGICAL MODELS IN WOOD, To illustrate the nature of Stratification; of Valleys of Denudation; Succession of Coalseams in the Newcastle Coal-field ; Strata of adjacent Lead-mine Districts; the effects produced by Faults or Dislocations ; Intersections of Mineral Veins, &c. ; accompanied with a letterpress description, which can be had separately, price Is.
Página 47 - But as we do not as yet know with certainty either the base or the summit of this series, these three may be conformably followed by many more. Although the Lower and Upper Laurentian rocks spread over more than 200,000 square miles in Canada, only about 1500 square miles have yet been fully and connectedly examined in any one district, and it is still impossible to say whether the numerous exposures of Laurentian limestone met with in other parts of the province are equivalent to any of the three...
Página 158 - MINERALS : these are found in masses, in beds, or in veins, and occasionally in the beds of rivers. Specimens of the following are contained in the Cabinet :— Iron, Manganese, Lead, Tin, Zinc, Copper, Antimony, Silver, Gold, Platina, &c.