The Student's Handbook of Physical GeologyG. Bell, 1892 - 666 pages |
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Page xii
... Remains of Ancient Volcanoes : -Extinct Volcanoes ; Necks ; Bosses ; Large Areas of Granite . CHAPTER XI . - IGNEOUS ROCKS ( continued ) · B. Veins and Dykes : -Connection between Plutonic and Volcanic Rocks ; Granite Tongues and Veins ...
... Remains of Ancient Volcanoes : -Extinct Volcanoes ; Necks ; Bosses ; Large Areas of Granite . CHAPTER XI . - IGNEOUS ROCKS ( continued ) · B. Veins and Dykes : -Connection between Plutonic and Volcanic Rocks ; Granite Tongues and Veins ...
Page 4
... remains , as they occur in a fossil state , is even more necessary for a geologist than a knowledge of inorganic substances . The cause of this necessity may be briefly stated as follows . When portions of the earth's crust came to be ...
... remains , as they occur in a fossil state , is even more necessary for a geologist than a knowledge of inorganic substances . The cause of this necessity may be briefly stated as follows . When portions of the earth's crust came to be ...
Page 25
... of a certain amount of pure sulphur . This sulphur remains in the fissures and cavities where the com- • bination takes place , the water is evaporated , CHAP . II , ] 25 VOLCANOES . tion Products of Eruption Dykes Causes of Volcanic ...
... of a certain amount of pure sulphur . This sulphur remains in the fissures and cavities where the com- • bination takes place , the water is evaporated , CHAP . II , ] 25 VOLCANOES . tion Products of Eruption Dykes Causes of Volcanic ...
Page 30
... remains hot for a long period of time . The process of solidification is , therefore , a very gradual one ; and a great thickness of lava takes a proportionately long time to cool , and solidify into stone . Natural sections of lava ...
... remains hot for a long period of time . The process of solidification is , therefore , a very gradual one ; and a great thickness of lava takes a proportionately long time to cool , and solidify into stone . Natural sections of lava ...
Page 43
... and 1 U.S. Geol . Survey , 4th Ann . Report , p . 120 . after an eruption it is often 1,000 feet deep ;. Fig . 9. View of the crater of Kilauea . Fig . 15. Remains of the Temple of Jupiter Serapis. CHAP . III . ] 43 VOLCANOES .
... and 1 U.S. Geol . Survey , 4th Ann . Report , p . 120 . after an eruption it is often 1,000 feet deep ;. Fig . 9. View of the crater of Kilauea . Fig . 15. Remains of the Temple of Jupiter Serapis. CHAP . III . ] 43 VOLCANOES .
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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