Earth Sculpture; Or, The Origin of Land-forms |
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Page ix
... Ground - moraine : its independence of Surface - moraines -Infraglacial smoothing and polishing , crushing , shattering and plucking - Geological action of Prehistoric Glaciers - General evi- dence supplied by Ancient Glaciers of the ...
... Ground - moraine : its independence of Surface - moraines -Infraglacial smoothing and polishing , crushing , shattering and plucking - Geological action of Prehistoric Glaciers - General evi- dence supplied by Ancient Glaciers of the ...
Page xii
... Ground on Downthrow Side 62. Normal Fault , with High Ground on Upcast Side . 63. Faults in Queantoweep Valley , Grand Cañon District ( Dutton ) 64. Ranges of the Great Basin ( Hinman , after Gilbert : length of section , 120 miles ) ...
... Ground on Downthrow Side 62. Normal Fault , with High Ground on Upcast Side . 63. Faults in Queantoweep Valley , Grand Cañon District ( Dutton ) 64. Ranges of the Great Basin ( Hinman , after Gilbert : length of section , 120 miles ) ...
Page 4
... ground . The former , therefore , are spoken of as volcanic , the latter as plutonic or hypogene rocks . As it is useful to have some general name for the rocks which owe their origin to the action of epigene agents ( i . e . , the ...
... ground . The former , therefore , are spoken of as volcanic , the latter as plutonic or hypogene rocks . As it is useful to have some general name for the rocks which owe their origin to the action of epigene agents ( i . e . , the ...
Page 7
... ground ; the lower continuous line , C - D , level ; 7 , limestone ; s , sandstones and shales . = sea- The great bulk of the derivative rocks being of sedimentary origin , it is obvious that they must have been at the time of their ...
... ground ; the lower continuous line , C - D , level ; 7 , limestone ; s , sandstones and shales . = sea- The great bulk of the derivative rocks being of sedimentary origin , it is obvious that they must have been at the time of their ...
Page 8
... ground , while the lower we shall take to be the level of the sea . The section thus shows the geological structure or arrangement of the rocks from the surface down to the level of the The strata represented consist of a great series ...
... ground , while the lower we shall take to be the level of the sea . The section thus shows the geological structure or arrangement of the rocks from the surface down to the level of the The strata represented consist of a great series ...
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Common terms and phrases
accumulation Alps anticlines basalt base-level basins become beds Carboniferous character cliffs coast-lines cones configuration Cretaceous crust crustal movements crystalline débris denudation deposits depressions depth detritus direction dislocations drainage elevation epigene action epigene agents eroded escarpments eventually feet fiords flexures flow fluvio-glacial deposits folds fracture gently geological structure glacial action glaciers gradually granite ground-moraines Highlands hills hollows horizontal strata ice-sheet igneous rocks inclined indented infrequently irregular islands joints Jura Mountains laccoliths lakes land land-forms land-surface lava less limestone low grounds masses materials Mesozoic modified moraines mountain-chain mountain-valleys mountains normal faults North Old Red Sandstone outcrops owe their origin Permian plain of erosion plateau regions relatively result ridges rock-basins rock-masses sand sandstones schistose schists Section sediment shales Silurian slopes Southern Uplands strata streams and rivers superficial surface surface-features synclinal tectonic tend thickness tion tracts traversed underground undulating usually valleys vertical volcanic