The Quarterly Journal of the Geological Society of London, Volume 31The Society, 1875 - Electronic journals Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Page 2
... bands . At this place , Ras Sheik el Ballan , the red bands were felsites , whilst those of a dark colour , which varied from a black to olive - green , were felspathic porphyries . The two might easily be distinguished by blows of the ...
... bands . At this place , Ras Sheik el Ballan , the red bands were felsites , whilst those of a dark colour , which varied from a black to olive - green , were felspathic porphyries . The two might easily be distinguished by blows of the ...
Page 4
... band about 6 inches wide , of rounded and angular pieces of flint , quartz , and granite . Masses of limestone , having ... bands of a black colour , forming a cap to these banks of sand 4 J. MILNE ON THE SINAITIC PENINSULA AND N.W. ARABIA .
... band about 6 inches wide , of rounded and angular pieces of flint , quartz , and granite . Masses of limestone , having ... bands of a black colour , forming a cap to these banks of sand 4 J. MILNE ON THE SINAITIC PENINSULA AND N.W. ARABIA .
Page 6
... bands of sand and rounded stones about six feet in thickness . On its southern side , beneath this cap there is a face of decomposing felspathic granite , traversed by greenish - coloured dykes , which include within them- selves small ...
... bands of sand and rounded stones about six feet in thickness . On its southern side , beneath this cap there is a face of decomposing felspathic granite , traversed by greenish - coloured dykes , which include within them- selves small ...
Page 7
... bands of a light yellow , fine - grained , quartzose material . Interstratified with these bands are one or two layers of an argilla- ceous shelly material , one of which contains several narrow veins of gypsum , each about half an inch ...
... bands of a light yellow , fine - grained , quartzose material . Interstratified with these bands are one or two layers of an argilla- ceous shelly material , one of which contains several narrow veins of gypsum , each about half an inch ...
Page 13
... bands . The granite is of a pinkish colour , and consists chiefly of felspar and a little quartz , whilst the mica is barely visible . It contains numerous dykes , which vary from dark green to olive - green in colour . At the junction ...
... bands . The granite is of a pinkish colour , and consists chiefly of felspar and a little quartz , whilst the mica is barely visible . It contains numerous dykes , which vary from dark green to olive - green in colour . At the junction ...
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Common terms and phrases
Ammonites angle angular appear Arenig augite bands base beds bones boulders Cambridge Camerton Carboniferous Chalk Chalk-marl character chlorite clay cliff colour containing coprolites Crocodilia crystals D'Orb débris denudation deposits district Ditto drift dykes evidence fauna feet felsitic felspar felstone formation fossils fragments Gault genus Geol Geological Society Geological Survey glacial granite gravel Greensand Harry Govier Seeley hills inch Journ Kimmeridge Kimmeridge Clay lavas leucite Lias lime limestone Lincolnshire Llandeilo lower mass microscopic miles mineral Munger Museum nearly nodules occur Oolite orthoclase Ostrea paper phosphate phosphoric acid Pict plate Porphyry portion posterior present probably Prof Professor Prorastomus Quarry quartz Ramsey Island remarked sand sandstone Seeley seen shales shell side Silurian slates species specimens stones strata striæ structure surface Tertiary thickness tion trace Upper valley whorls
Popular passages
Page 114 - 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.
Page 316 - 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.
Page 256 - Both bodies of deer extended further than the eye could reach, and formed a compact mass, narrowing towards the front. They moved slowly and majestically along, their broad antlers resembling a moving wood of leafless trees. Each body was led by a deer of unusual size, which my guides assured me was always a female. One of the herds was stealthily followed by a wolf, who was apparently watching for an opportunity of seizing any one of the younger and weaker deer which might fall behind the rest,...
Page lxxv - Geikie has held that for the most part they belong to an interglacial episode towards the close of the Glacial period, and regards it as certain that no Palaeolithic bed can be shown to belong to a more recent date than the mild era that preceded the last great submergence. His follower, Mr.
Page 510 - VON COTTA. An English Edition, by PH LAWRENCE (with English, German, and French Synonymes), revised by the Author. Post 8vo. lit. Sound : a Course of Eight Lectures delivered at the Royal Institution of Great Britain. By Professor JOHN TYNDALL, LL.DFRS Crown 8vo. with Portrait and Woodcuts, 9» Heat Considered as a Mode of Motion.
Page 316 - 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. £2 2 0 *200 Specimens, larger, in cabinet, with five trays...
Page 475 - The heat from which terrestrial volcanic energy is at present derived is produced locally within the solid shell of our globe by transformation of the mechanical work of compression or of crushing of portions of that shell, which compressions and crushings are themselves produced by the more rapid contraction, by cooling, of the hotter material of the nucleus beneath that shell, and the consequent more or less free descent of the shell by gravitation, the vertical work of which is resolved into tangential...
Page 316 - Trays £2 2 0 200 Specimens, larger, in Cabinet with Five Trays 6 6 0 300 Specimens, larger, in Cabinet with Nine Drawers 10 10 0 400 Specimens, larger, in Cabinet with Thirteen Drawers 21 0 0 More extensive Collections...
Page x - FREDERICK M°CoY, FGS One vol., Royal 410. Plates, /i. is. A CATALOGUE OF THE COLLECTION OF CAMBRIAN AND SILURIAN FOSSILS contained in the Geological Museum of the University of Cambridge, by JW SALTER, FGS With a Portrait of PROFESSOR SEDGWICK.