Class-book of GeologyMacmillan and Company, 1890 - 516 σελίδες |
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Σελίδα vi
... chiefly from my own note - books . I have to thank Messrs . J. D. Cooper and M. Lacour for the skill with which they have given in wood - engraving the expression of the originals . In preparing the Second Edition , I have thoroughly ...
... chiefly from my own note - books . I have to thank Messrs . J. D. Cooper and M. Lacour for the skill with which they have given in wood - engraving the expression of the originals . In preparing the Second Edition , I have thoroughly ...
Σελίδα 16
... chiefly on flat or gently inclined ground . Where the slope is steep , the decomposed layer will tend to travel down - hill by mere gravitation , and to be further impelled downward by descending rain - water . If there is so intimate a ...
... chiefly on flat or gently inclined ground . Where the slope is steep , the decomposed layer will tend to travel down - hill by mere gravitation , and to be further impelled downward by descending rain - water . If there is so intimate a ...
Σελίδα 34
... chiefly by the angle of slope ; the greater the declivity , the higher the velocity and the larger the capacity of the stream to carry down debris . Any cause , therefore , which lessens the velocity of a current diminishes its carrying ...
... chiefly by the angle of slope ; the greater the declivity , the higher the velocity and the larger the capacity of the stream to carry down debris . Any cause , therefore , which lessens the velocity of a current diminishes its carrying ...
Σελίδα 46
... chiefly formed , it sometimes yields the bones of deer , oxen , and other animals , whose carcases must originally have sunk to the bottom of the lake and been there gradually covered up in the growing mass of marl . Many FIG . 17 ...
... chiefly formed , it sometimes yields the bones of deer , oxen , and other animals , whose carcases must originally have sunk to the bottom of the lake and been there gradually covered up in the growing mass of marl . Many FIG . 17 ...
Σελίδα 75
... chiefly because they are demolished by the sea , they ought to be most eroded at the bottom , and should therefore be usually overhanging precipices . That this is not the case shows that some other agency is concerned which causes the ...
... chiefly because they are demolished by the sea , they ought to be most eroded at the bottom , and should therefore be usually overhanging precipices . That this is not the case shows that some other agency is concerned which causes the ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
abundant accumulated acid Ammonites ancient Assistant Master beds BOOK bottom Brachiopods calcareous calcite Cambrian Cambridge carbonate of lime Carboniferous Chapter chiefly clay College containing corals Cretaceous crinoids crystalline crystals decay deposits detritus Devonian earth earth's crust Edited ELEMENTARY Eocene eruptive Europe evidence example extinct fauna Fcap feet fissures fossils genera GEOGRAPHY geological history glacier globe gradually granite gravel GREEK ground Illustrated Jurassic kinds known lakes land lava layers limestone living lower marine marls mass materials Mesozoic mineral Miocene molten mountains natural occur Old Red Sandstone organic remains original Palæozoic period Permian plants and animals Pliocene present preserved Prof Professor quartz Red Sandstone regions revised rivers rocks sand schists sediment sedimentary sedimentary rocks shales sheets shells siliceous Silurian soil solid sometimes species stone strata structure substance surface terrestrial Tertiary thick trace Triassic upper various vegetation volcanic
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