Class-book of GeologyMacmillan and Company, 1890 - 516 páginas |
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Página 6
... living things if the history of the earth were merely one of dead inert matter - it would lose much of its interest for us . But happily that history includes the records of successive generations of plants and animals which , from ...
... living things if the history of the earth were merely one of dead inert matter - it would lose much of its interest for us . But happily that history includes the records of successive generations of plants and animals which , from ...
Página 25
... living animals . sulphate of lime , of which the Thames is computed. FIG . 7. - Erosion of limestone by the solvent action of a peaty stream , Durness , Sutherlandshire . FIG . 8. - Pot - holes worn out by. III 25 CHEMICAL ACTION.
... living animals . sulphate of lime , of which the Thames is computed. FIG . 7. - Erosion of limestone by the solvent action of a peaty stream , Durness , Sutherlandshire . FIG . 8. - Pot - holes worn out by. III 25 CHEMICAL ACTION.
Página 40
... living in the river itself may also be killed during the flood , and may be entombed with the other organisms in the sediment . Summary . — The material produced by the universal decay of the surface of the land is washed off by rain ...
... living in the river itself may also be killed during the flood , and may be entombed with the other organisms in the sediment . Summary . — The material produced by the universal decay of the surface of the land is washed off by rain ...
Página 41
... living on the land at the time . As a river deepens its channel , it leaves on either side alluvial terraces that mark successive flood - plains over which it has flowed . CHAPTER IV THE MEMORIALS LEFT BY LAKES Fresh - water III 41 SUMMARY.
... living on the land at the time . As a river deepens its channel , it leaves on either side alluvial terraces that mark successive flood - plains over which it has flowed . CHAPTER IV THE MEMORIALS LEFT BY LAKES Fresh - water III 41 SUMMARY.
Página 81
... living things upon the surface of the globe . This action is often of a destructive kind , both plants and animals taking their part in promoting the general disintegra- tion of rocks and soils . Thus , by their decay they furnish to ...
... living things upon the surface of the globe . This action is often of a destructive kind , both plants and animals taking their part in promoting the general disintegra- tion of rocks and soils . Thus , by their decay they furnish to ...
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Términos y frases comunes
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 mountains natural occur Old Red Sandstone organic remains original Palæozoic Paleozoic 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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