Class-book of GeologyMacmillan and Company, 1890 - 516 páginas |
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Página 76
... marls , and sands or sandstones , with occasional layers of gravel . In all this great thickness of sediment , no trace of marine organisms was found , but land - plants and bones of terrestrial and fluviatile animals occurred . Lower ...
... marls , and sands or sandstones , with occasional layers of gravel . In all this great thickness of sediment , no trace of marine organisms was found , but land - plants and bones of terrestrial and fluviatile animals occurred . Lower ...
Página 214
... marls , and on the sea - floor at the present time . Yet , if we were to judge of the extent of the whole existing animal kingdom solely from the fragmentary remains so preserved , what an utterly inadequate conception of it we should ...
... marls , and on the sea - floor at the present time . Yet , if we were to judge of the extent of the whole existing animal kingdom solely from the fragmentary remains so preserved , what an utterly inadequate conception of it we should ...
Página 218
... marl of lakes receive and pre- serve abundant relics of the vegetation and animal life of the surrounding ... marls of the Limagne d'Auvergne , and the vast depth of strata from which so rich an assemblage of plant and animal ...
... marl of lakes receive and pre- serve abundant relics of the vegetation and animal life of the surrounding ... marls of the Limagne d'Auvergne , and the vast depth of strata from which so rich an assemblage of plant and animal ...
Página 284
... are well developed . They consist of red sandstones , marls , conglomerates , and breccias , with limestones and dolomites . In Germany they are often called Dyas , because they are there easily grouped in two CHAPTER XXI PERMIAN.
... are well developed . They consist of red sandstones , marls , conglomerates , and breccias , with limestones and dolomites . In Germany they are often called Dyas , because they are there easily grouped in two CHAPTER XXI PERMIAN.
Página 292
... marls or clays , with beds of gypsum , anhydrite , rock - salt , dolomite , and limestone . These rocks , so closely re- sembling the Permian series below , had evidently a similar origin . They were in large part deposited in inland ...
... marls or clays , with beds of gypsum , anhydrite , rock - salt , dolomite , and limestone . These rocks , so closely re- sembling the Permian series below , had evidently a similar origin . They were in large part deposited in inland ...
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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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