The Student's Handbook of Physical GeologyG. Bell, 1892 - 666 pages |
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Page 9
... surface of this sphere would lie at the depth of 70,000 feet below the actual surface at the equator . Now the deepest soundings in the ocean are less than 28,000 feet , and the highest mountain in the world , viz . , Mount Everest in ...
... surface of this sphere would lie at the depth of 70,000 feet below the actual surface at the equator . Now the deepest soundings in the ocean are less than 28,000 feet , and the highest mountain in the world , viz . , Mount Everest in ...
Page 15
... surface , and this heat must have been dissipated into space . Consequently we are led back to the conclusion ... surface of the crust in contact with the fluid was not perfectly spherical . If this surface was only slightly irregular ...
... surface , and this heat must have been dissipated into space . Consequently we are led back to the conclusion ... surface of the crust in contact with the fluid was not perfectly spherical . If this surface was only slightly irregular ...
Page 34
... surface ex- plosive ebullition might take place . That the escape of such occluded gas can produce vol- canic action ... surface crust is agitated and fissured , miniature cones and lava - streams being formed upon it which have a ...
... surface ex- plosive ebullition might take place . That the escape of such occluded gas can produce vol- canic action ... surface crust is agitated and fissured , miniature cones and lava - streams being formed upon it which have a ...
Page 51
... surface directly over the centre of impulse ( a b ) , Mr. Mallet calls the seismic vertical , b being called the epicentrum or point directly over the centre of impulse , and the concentric lines along which the shock reaches the surface ...
... surface directly over the centre of impulse ( a b ) , Mr. Mallet calls the seismic vertical , b being called the epicentrum or point directly over the centre of impulse , and the concentric lines along which the shock reaches the surface ...
Page 53
... surface rocks cannot be com- pared with that through dense , compact , and deeply buried rocks ; and that the wave ... surface depending on the energy developed at the focus , and on the distance of that focus from the surface . An ...
... surface rocks cannot be com- pared with that through dense , compact , and deeply buried rocks ; and that the wave ... surface depending on the energy developed at the focus , and on the distance of that focus from the surface . An ...
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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