Class-book of GeologyMacmillan and Company, 1890 - 516 σελίδες |
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Σελίδα xv
... containing shells of Limnæa peregra 18. View of Axmouth landslip as it appeared in April 1885 . 19. Section of cavern with stalactites and stalagmite . 20. Section showing successive layers of growth in a stalactite 21. Travertine with ...
... containing shells of Limnæa peregra 18. View of Axmouth landslip as it appeared in April 1885 . 19. Section of cavern with stalactites and stalagmite . 20. Section showing successive layers of growth in a stalactite 21. Travertine with ...
Σελίδα xvii
... containing liquids ( magnified ) 69. Various forms of crystallites ( highly magnified ) 70. Porphyritic structure · 71. Spherulites and fluxion - structure 72. Schistose structure · 73. Brecciated structure - volcanic breccia , a rock ...
... containing liquids ( magnified ) 69. Various forms of crystallites ( highly magnified ) 70. Porphyritic structure · 71. Spherulites and fluxion - structure 72. Schistose structure · 73. Brecciated structure - volcanic breccia , a rock ...
Σελίδα 20
... contain the bones of animals that have long since passed away . 6543 2 sand . Dust . By the action of wind , above referred to , a vast amount of fine dust and sand is carried up into the air and strewn far and wide over the land . In ...
... contain the bones of animals that have long since passed away . 6543 2 sand . Dust . By the action of wind , above referred to , a vast amount of fine dust and sand is carried up into the air and strewn far and wide over the land . In ...
Σελίδα 27
... contain more or less mineral matter suspended in their water or travelling with the current on the bottom . The amount of material thus transported varies greatly in different rivers , and at successive seasons even in the same river ...
... contain more or less mineral matter suspended in their water or travelling with the current on the bottom . The amount of material thus transported varies greatly in different rivers , and at successive seasons even in the same river ...
Σελίδα 46
... lake and been there gradually covered up in the growing mass of marl . Many FIG . 17. - Piece of shell - marl containing shells of Limnæa peregra . ་ examples of these marl - deposits are to be found. 46 CHAP . RECORDS OF LAKES.
... lake and been there gradually covered up in the growing mass of marl . Many FIG . 17. - Piece of shell - marl containing shells of Limnæa peregra . ་ examples of these marl - deposits are to be found. 46 CHAP . RECORDS OF LAKES.
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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 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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