The Student's Handbook of Physical GeologyG. Bell and Sons, 1884 - 514 pages |
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Page ix
... Volcanic action . Volcanic Islands and Submarine Volcanoes . CHAPTER III . - EARTHQUAKES Connection with Volcanoes . Nature and Origin . Pheno- mena and Effects . Instances of Earthquakes . Summary of Surface Effects . CHAPTER IV ...
... Volcanic action . Volcanic Islands and Submarine Volcanoes . CHAPTER III . - EARTHQUAKES Connection with Volcanoes . Nature and Origin . Pheno- mena and Effects . Instances of Earthquakes . Summary of Surface Effects . CHAPTER IV ...
Page xii
... Volcanic division : -Dykes and Veins ; Intrusive sheets ; Laccolites ; Bosses . B. Plutonic division : -Position of Granite . Granites of Leinster , Cornwall and Devon . Connection of Plutonic and Volcanic rocks . Granite veins and ...
... Volcanic division : -Dykes and Veins ; Intrusive sheets ; Laccolites ; Bosses . B. Plutonic division : -Position of Granite . Granites of Leinster , Cornwall and Devon . Connection of Plutonic and Volcanic rocks . Granite veins and ...
Page 11
... volcanic orifices , which occur here and there all over the earth , and from which streams of lava or molten rock are so often poured forth , prove that some parts of the interior at any rate are so heated that solid rocks are rendered ...
... volcanic orifices , which occur here and there all over the earth , and from which streams of lava or molten rock are so often poured forth , prove that some parts of the interior at any rate are so heated that solid rocks are rendered ...
Page 13
... a mean rate of increase from the surface of 1 ° F. for every 54 feet . 5. Hot Springs . - The Geysers and other hot springs which are found in volcanic districts , must be regarded CHAP . I. ] GENERAL STRUCTURE OF THE EARTH . 13.
... a mean rate of increase from the surface of 1 ° F. for every 54 feet . 5. Hot Springs . - The Geysers and other hot springs which are found in volcanic districts , must be regarded CHAP . I. ] GENERAL STRUCTURE OF THE EARTH . 13.
Page 14
Alfred John Jukes-Browne. which are found in volcanic districts , must be regarded as deriving their heat from the volcanic focus , and cannot be taken as affording independent evidence of the internal temperature of the earth . Warm ...
Alfred John Jukes-Browne. which are found in volcanic districts , must be regarded as deriving their heat from the volcanic focus , and cannot be taken as affording independent evidence of the internal temperature of the earth . Warm ...
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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 carbonic acid chalk chemical clay cleavage cliffs coal coast colour consist containing coral cracks crystalline crystals denudation deposits depth described detrition distance district dolerite dykes earth earth's crust elevation erosion excavated fault feet felspar fissures Foraminifera formation formed fragments Geol glacier glauconite gradually granite greensand ground hills horizontal hornblende igneous rocks island joints Jukes lake land lava layers less limestone magnesia mass material matter metamorphic metamorphic rocks mica miles mineral mountain observed occur origin Orthoclase outcrops particles pebbles planes porphyritic portion present pressure produced quartz rain reef river salt sand sandstone shales shells shore side siliceous Silurian slope solid solution sometimes stones strata stratified rocks stream structure sulphate surface synclinal thickness tide tion Trans valley vertical volcanic waves