Transactions of the Edinburgh Geological Society, Band 5The Society, 1888 |
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Albertite animals appear basin beds bones Boulder clay Carboniferous Carnallite columella Conglomerate corallites corallum deposits district east Edinburgh evidence existence exposed fact feet felspar flowed formation fossil Geikie genus Geological Society Geological Survey geologists glacial glacier Glen gneiss granite Granton gravel Grun height hills Hutton hyæna ice-sheet Igneous Rocks Kent's Cavern Lake land limestone Lithostrotion Loch lower marine mass melting miles mineral moraine mountains Museum nature north-west northern observed occur Ohio Old Red Old Red Sandstone paper portion present Professor quarry quartz Ralph Richardson Red Sandstone region remains river road Royal salt sand says Scorpion Scotland Scottish secondary septa seen septa shales shells shore side Silurian slope soil species specimens Stassfurt stones strata streams submergence surface tabulæ terraces theory thickness tion upper valley Wardie shales Water of Leith
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Seite 65 - The changes which have taken place in the courses of rivers, are also to be traced, in many instances, by successive platforms, of flat alluvial land, rising one above another, and marking the different levels on which the river has run at different periods of time.
Seite 264 - For the moving of large masses of rock, the most powerful engines without doubt which nature employs are the glaciers, those lakes or rivers of ice which are formed in the highest valleys of the Alps, and other mountains of the first order. These great masses are in perpetual motion, undermined by the influx of heat from the earth, and impelled down the declivities on which they rest by their own enormous weight, together with that of the innumerable fragments of rock with which they are loaded.
Seite 248 - Oh! I would walk A weary journey, to the furthest verge Of the big world, to kiss that good man's hand, Who, in the blaze of wisdom and of art, Preserves a lowly mind; and to his God, Feeling the sense of his own littleness, Is as a child in meek simplicity!
Seite 209 - We hare our answer in the fertile soil which spreads over the temperate regions of the globe. The glacier was God's great plough ; and when the ice vanished from the face of the land, it left it prepared for the hand of the husbandman. The hard surface of the rocks was ground to powder, the elements of the soil were mingled in fair proportions, granite was carried into the lime regions, lime was mingled with the more arid and unproductive granite districts, and a soil was prepared fit for the agricultural...
Seite 546 - For the reasons before given I think it possible that the Glacial epoch — that is to say, the epoch of extreme cold — may not have lasted longer than from 15,000 to 25,000 years, and I would for the same reasons limit the time of the melting away of the ice-sheet to from 8,000 to 10,000 years...
Seite 261 - ... pavement of the globe. Revolutions still more remote appeared in the distance of this extraordinary perspective. The mind seemed to grow giddy by looking so far into the abyss of time...
Seite 260 - We felt ourselves necessarily carried back to the time when the schistus on which we stood was yet at the bottom of the sea, and when the sandstone before us was only beginning to be deposited, in the shape of sand or mud, from the waters of a superincumbent ocean. An...
Seite 260 - We often said to ourselves, What clearer evidence could we have had of the different formation of these rocks, and of the long interval which separated their formation...
Seite 208 - Jersey, and which figure on the geological maps as the edge of the continental glacier, — an explanation obviously inapplicable in those western regions where they attain their greatest development. It is plain that in the north it marks the western limit of the deep water of a glacial sea, which at some periods extended much farther west, perhaps with a greater proportionate depression in going westward, and on which heavy ice from the Laurentian districts on the east was wafted southwestward...
Seite 259 - Treat! fe here offered to the Public, was drawn up with a view of explaining Dr Hutton's Theory of the Earth in a manner more popular and perfpicuous than is done in his own writings.