Principles of Geology: Being an Inquiry how Far the Former Changes of the Earth's Surface are Referable to Causes Now in Operation, Том 1J. Murray, 1837 - 546 страници |
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ages alluvial ancient animals Apennines appear arctic Auvergne basin beds bones calcareous carbonate carbonic acid carboniferous causes century changes channel chap clay cliffs climate coast continued currents delta deluge deposits depth distance doctrine earth earthquakes elevation Eocene Etym Europe existing extinct feet flood flows formation formed former fossil fossil shells geographical geological geologist globe gneiss gradually granite gulf heat height hemisphere hundred igneous inhabitants islands lakes land latitudes lava lime limestone marine mass matter Mediterranean Melville Island miles mineral modern mountains nature northern northern hemisphere observations ocean oolitic opinions Orcia organic remains origin period petrifactions phenomena plants present probably quadrupeds quantity regions Rhone rise rivers rocks sand secondary sediment shores Siberia species springs stone Strabo strata stratum stream subterranean supposed surface temperature tertiary testacea theory tides tion tracts travertin tropical tufa valleys vegetable volcanic
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Страница 233 - A thousand men, that fishes gnaw'd upon; Wedges of gold, great anchors, heaps of pearl, Inestimable stones, unvalued jewels, All scatter'd in the bottom of the sea...
Страница 95 - ... given laws to the universe, which, like the institutions of men, carry in themselves the elements of their own destruction. He has not permitted in His works any symptom of infancy or of old age, or any sign by which we may estimate either their future or their past duration. He may put an end, as he no doubt gave a beginning, to the present system at some determinate period...
Страница 95 - ... in the planetary motions, where geometry has carried the eye so far both into the future and the past, we discover no mark either of the commencement or the termination of the present order.
Страница 48 - And tho' it must be granted, that it is very difficult to read them, and to raise a Chronology out of them, and to state the intervalls of the times wherein such, or such catastrophies and mutations have happened ; yet 'tis not impossible...
Страница 56 - Although by woful proof we find They always leave a scar behind. He knew the seat of paradise, Could tell in what degree it lies: And, as he was disposed, could prove it, Below the moon, or else above it.
Страница 1 - GEOLOGY is the science which investigates the successive changes that have taken place in the organic and inorganic kingdoms of nature : it inquires into the causes of these changes, and the influence which they have exerted in modifying the surface and external structure of our planet.
Страница 43 - ... fossils were mere sports of nature. An additional period of a century and a half was now destined to be consumed in exploding the hypothesis, that organised fossils had all been buried in the solid strata by Noah's flood. Never did a theoretical fallacy, in any branch of science, interfere more seriously with accurate observation and the systematic classification of facts. In recent times, we may attribute our rapid progress chiefly to the careful determination of the order of succession in mineral...
Страница 444 - ... logos, a discourse). GLACIER. Vast accumulations of ice and hardened snow in the Alps and other lofty mountains. Etym., glace, French for ice. GLACIS. A term borrowed from the language of fortification, where it means an easy insensible slope or declivity, less steep than a talus, which see. GNEISS. A stratified primary rock, composed of the same materials as granite, but having usually a larger proportion of mica and a laminated texture.
Страница 110 - IF we reflect on the history of the progress of geology, as explained in the preceding chapters, we perceive that there have been great fluctuations of opinion respecting .the nature of the causes to which all former changes of the earth's surface are referable. The first observers conceived the monuments which the geologist endeavors to decipher to relate to an original state of the earth, or to a period when there were causes in activity, distinct, in kind and degree, from those now constituting...
Страница 440 - DELTA. When a great river, before it enters the sea, divides into separate streams, they often diverge and form two sides of a triangle, the sea being the base. The land included by the three lines, and which is invariably alluvial, was first called, in the case of the Nile, a delta, from its resemblance to the letter of the Greek alphabet which goes by that name A.