Class-book of GeologyMacmillan and Company, 1890 - 516 páginas |
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Página vi
... 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 revised vi PREFACE.
... 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 revised vi PREFACE.
Página xi
... ORIGINAL STRUCTURES PAGE 171 CHAPTER XIII SEDIMENTARY ROCKS . - -STRUCTURES SUPERINDUCED IN THEM AFTER THEIR FORMATION 185 CHAPTER XIV ERUPTIVE ROCKS AND MINERAL VEINS IN THE ARCHI- TECTURE OF THE EARTH'S CRUST . CHAPTER XV HOW FOSSILS ...
... ORIGINAL STRUCTURES PAGE 171 CHAPTER XIII SEDIMENTARY ROCKS . - -STRUCTURES SUPERINDUCED IN THEM AFTER THEIR FORMATION 185 CHAPTER XIV ERUPTIVE ROCKS AND MINERAL VEINS IN THE ARCHI- TECTURE OF THE EARTH'S CRUST . CHAPTER XV HOW FOSSILS ...
Página xv
... original structures of the stone are revealed by weathering ) . 2. Passage of sandstone upwards into soil 3. Passage of granite upwards into soil 4. Talus - slopes at the foot of a line of cliffs 5. Section of rain - wash or brick ...
... original structures of the stone are revealed by weathering ) . 2. Passage of sandstone upwards into soil 3. Passage of granite upwards into soil 4. Talus - slopes at the foot of a line of cliffs 5. Section of rain - wash or brick ...
Página 12
... original polish that may here and there have escaped , serve as a measure of how much has actually been removed from the rest of the surface . Now , if in the lapse of time , stone which has been artificially dressed is wasted away , we ...
... original polish that may here and there have escaped , serve as a measure of how much has actually been removed from the rest of the surface . Now , if in the lapse of time , stone which has been artificially dressed is wasted away , we ...
Página 15
... original position . As these fragments are attacked by percolating moisture , their surfaces decay , leaving the still unweathered parts as rounded blocks ( 6 ) , which might at first be mistaken for transported boulders . They are ...
... original position . As these fragments are attacked by percolating moisture , their surfaces decay , leaving the still unweathered parts as rounded blocks ( 6 ) , which might at first be mistaken for transported boulders . They are ...
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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 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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