The Student's Handbook of Physical GeologyG. Bell, 1892 - 666 pages |
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Page v
... instances or illustrations of them , but its value for educational purposes must greatly depend upon its plan or system of arrangement , and upon the manner in which its contents are presented to the reader . The general arrangement in ...
... instances or illustrations of them , but its value for educational purposes must greatly depend upon its plan or system of arrangement , and upon the manner in which its contents are presented to the reader . The general arrangement in ...
Page xii
... Instances ; Basaltic Pla- teaux . CHAPTER XII . - METAMORPHIC ROCKS Phases of Metamorphism . Cleavage ; Foliation . A. Rocks without Foliation :-( 1 ) Altered Sedimen- taries ; ( 2 ) Altered Igneous Rocks . B. The Foliated Rocks ...
... Instances ; Basaltic Pla- teaux . CHAPTER XII . - METAMORPHIC ROCKS Phases of Metamorphism . Cleavage ; Foliation . A. Rocks without Foliation :-( 1 ) Altered Sedimen- taries ; ( 2 ) Altered Igneous Rocks . B. The Foliated Rocks ...
Page xiii
... Instances of Unconformity . Instances of Overlap . Practical Im- portance . PART III . — PHYSIOGRAPHICAL GEOLOGY . CHAPTER I. - EARTH SCULPTURE , OR THE EVOLUTION OF SURFACE FEATURES BY THE PROCESS OF EROSION • Share taken by different ...
... Instances of Unconformity . Instances of Overlap . Practical Im- portance . PART III . — PHYSIOGRAPHICAL GEOLOGY . CHAPTER I. - EARTH SCULPTURE , OR THE EVOLUTION OF SURFACE FEATURES BY THE PROCESS OF EROSION • Share taken by different ...
Page 12
... instance to be 50 ° F. , these observations show an average increment of 1 ° for every 55 feet of depth . While , then , there is some variation in the rate of this increase at different places , it is an undoubted fact that the ...
... instance to be 50 ° F. , these observations show an average increment of 1 ° for every 55 feet of depth . While , then , there is some variation in the rate of this increase at different places , it is an undoubted fact that the ...
Page 13
... instances . There is little doubt that the waters of these springs travel upwards through cracks and fissures , which originate at great depths , and that they are hot in consequence of the depth from which they come . 1 For a full ...
... instances . There is little doubt that the waters of these springs travel upwards through cracks and fissures , which originate at great depths , and that they are hot in consequence of the depth from which they come . 1 For a full ...
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Common terms and phrases
acid action agencies altered alumina amount anticlinal augite basalt beds blocks bottom calcareous calcite called carbonate of lime carbonic acid chalk channel chemical clay cleavage cliffs coast colour consists coral cracks crystalline crystals currents débris denudation deposits depth described detrition distance district dolerite dykes earth earth's crust Edited elevation erosion eruptions fault feet felspar fissures formation formed fragments Geol Geology glacier glauconite gneiss gradually granite greensand ground hills horizontal hornblende igneous rocks iron island Jukes lakes land lava layers limestone magnesia mass material metamorphic mica miles mineral mountain occur original Orthoclase outcrop oxide particles pebbles planes porphyritic portion pressure produced quartz rain reefs ridge rise river sand sandstone schist shale shells shore side siliceous slope soil solution sometimes stones strata stratified rocks stream structure surface thickness tion tract Translated unconformity valley vertical volcanic