The Student's Handbook of Physical GeologyG. Bell and Sons, 1884 - 514 pages |
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Page ix
... Islands and Submarine Volcanoes . CHAPTER III . - EARTHQUAKES • • Connection with Volcanoes . Nature and Origin . Pheno- mena and Effects . Instances of Earthquakes . Summary of Surface Effects . PAGE 1 9 . 20 37 CHAPTER IV ...
... Islands and Submarine Volcanoes . CHAPTER III . - EARTHQUAKES • • Connection with Volcanoes . Nature and Origin . Pheno- mena and Effects . Instances of Earthquakes . Summary of Surface Effects . PAGE 1 9 . 20 37 CHAPTER IV ...
Page 6
... Islands , and will necessarily be only a condensed account , but prominence will be given to those facts which enable us to realize the relative posi- tions of land and sea , and the general physical geography of each geological epoch ...
... Islands , and will necessarily be only a condensed account , but prominence will be given to those facts which enable us to realize the relative posi- tions of land and sea , and the general physical geography of each geological epoch ...
Page 20
... Islands , and the Malay Archipelago . These lines of volcanic vents sometimes seem to radiate from a special volcanic centre . If we could make a vertical cut or section through a vol- canic hill , so as to lay open its internal 20 ...
... Islands , and the Malay Archipelago . These lines of volcanic vents sometimes seem to radiate from a special volcanic centre . If we could make a vertical cut or section through a vol- canic hill , so as to lay open its internal 20 ...
Page 22
... Island , after Scrope . rises the new and active volcanic cone ( as indicated in fig . 3 ) . This formation of a new cone within an older truncated one is of frequent occurrence in the history of volcanoes . Vesuvius is known to have ...
... Island , after Scrope . rises the new and active volcanic cone ( as indicated in fig . 3 ) . This formation of a new cone within an older truncated one is of frequent occurrence in the history of volcanoes . Vesuvius is known to have ...
Page 30
... islands , Stromboli , has been in constant activity from the earliest historical period . It always contains melted lava in constant motion , and at uncertain intervals the molten mass suddenly rises , and large bubbles appear , which ...
... islands , Stromboli , has been in constant activity from the earliest historical period . It always contains melted lava in constant motion , and at uncertain intervals the molten mass suddenly rises , and large bubbles appear , which ...
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Common terms and phrases
accumulated acid action alumina amount angles anticlinal augite basalt beds blocks bottom calcareous called carbonate of lime chalk chemical clay cleavage cliffs coal coast colour consist containing coral cracks crystalline crystals deposits depth described detrition distance district dolerite Dolomite dykes earth elevation erosion fault feet felspar fissures Foraminifera formation formed fragments frequently Geol glacier glauconite gradually granite greensand ground hills horizontal hornblende igneous rocks iron island joints Jukes lake land lava layers less Leucite limestone magnesia mass material matter metamorphic metamorphic rocks mica miles mineral mountain occur origin Orthoclase outcrops oxides particles pebbles planes porphyritic portion present pressure produced quartz rain reef river salt sand sandstone shale shells shore side silicate silicate of alumina slope solid solution sometimes stone strata stratified rocks stream structure substances sulphate surface thickness tide tion tuffs valley vertical volcanic waves