Anglický jazyk

Carrington, J: Science-Gossip, Vol. 5

Vydavateľstvo: Forgotten Books
Formát: Paperback
Jazyk: Anglický jazyk
ISBN: 9781334420702

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O knihe

Excerpt from Science-Gossip, Vol. 5: An Illustrated Monthly Record of Nature, Country-Lore and Applied Science; Dec. 1898

These accumulations of river drift mount up the sides of the valley by a succession of broad terraces, but sometimes they lie evenly on gentle slopes. Each terrace forms a more or less fiat tract, often cut through by the main valley, or by side valleys, sufficiently deep to lay bare the strata below the gravel. The drift of the Thames Valley is evidently the deposit Of a river which was considerably larger than its modern representative. This is shown by the far wider tract within which it ¿owed, whilst the comparative coarseness of its deposit would indicate that it must have been of a more torrential character. That condition of size and power would be due for the most part to_ greater height of the land, causing more abundant condensation of atmospheric moisture and heavier fall of rain or snow, There may, too, have been a steeper slope of the river-bed, which would give more power of transport. Such a raising of the land would make our island part of the main continent of Europe, as it undoubtedly was at that period.

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