Class-book of GeologyMacmillan and Company, 1890 - 516 páginas |
Dentro del libro
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Página xviii
... covered Old Red Sandstone fishes 261 134. Plate - covered Old Red Sandstone fishes 261 FIG . PAGE 135. Devonian Eurypterid Crustacean 262 136. Devonian xviii LIST OF ILLUSTRATIONS.
... covered Old Red Sandstone fishes 261 134. Plate - covered Old Red Sandstone fishes 261 FIG . PAGE 135. Devonian Eurypterid Crustacean 262 136. Devonian xviii LIST OF ILLUSTRATIONS.
Página 1
... spreading over fields and meadows , will bury many acres of fertile land under a covering of barren sand and shingle . A long - continued , heavy rain , by loosening masses A of earth or rock on steep slopes , causes 20 B.
... spreading over fields and meadows , will bury many acres of fertile land under a covering of barren sand and shingle . A long - continued , heavy rain , by loosening masses A of earth or rock on steep slopes , causes 20 B.
Página 5
... covered a key to the language in which they are written , so the geologist would find himself baffled in his efforts to trace backward the history of the earth if he were not provided with a clue to the interpretation of the records in ...
... covered a key to the language in which they are written , so the geologist would find himself baffled in his efforts to trace backward the history of the earth if he were not provided with a clue to the interpretation of the records in ...
Página 17
... covering of soil and subsoil has been formed over a level piece of ground , especially where there is also an overlying carpet of verdure , the process of decay should cease — the very layer of rotted material coming eventually to ...
... covering of soil and subsoil has been formed over a level piece of ground , especially where there is also an overlying carpet of verdure , the process of decay should cease — the very layer of rotted material coming eventually to ...
Página 18
... covering has been removed . Rabbits , moles , and other animals throw out soil from their burrows . Mice sometimes lay it bare by eating the pasture down to the roots . The common Earthworms bring up to day- light in the course of a ...
... covering has been removed . Rabbits , moles , and other animals throw out soil from their burrows . Mice sometimes lay it bare by eating the pasture down to the roots . The common Earthworms bring up to day- light in the course of a ...
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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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