Earth Sculpture; Or, The Origin of Land-forms |
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Page 7
... rocks . The origin of those ancient crystalline schists has been much discussed , but does not concern us here . Some geologists have maintained that the rocks in question represent the original cooled crust of the globe , while the ...
... rocks . The origin of those ancient crystalline schists has been much discussed , but does not concern us here . Some geologists have maintained that the rocks in question represent the original cooled crust of the globe , while the ...
Page 13
... rocks of all kinds are traversed , clearly demonstrate that movements of the solid crust have taken place . Such crustal dis- turbances are probably in chief measure due to the fact that the earth is a cooling body . As the solid crust ...
... rocks of all kinds are traversed , clearly demonstrate that movements of the solid crust have taken place . Such crustal dis- turbances are probably in chief measure due to the fact that the earth is a cooling body . As the solid crust ...
Page 15
... rocks which are geologically more than a thousand fathoms below or above those on which we rest our feet . Faults , then , afford clear evidence of the wholesale removal of rocks from the surface of the land . Such proofs of rock ...
... rocks which are geologically more than a thousand fathoms below or above those on which we rest our feet . Faults , then , afford clear evidence of the wholesale removal of rocks from the surface of the land . Such proofs of rock ...
Page 16
... rocks have been removed . The granite appears at the surface simply because the covering of rocks underneath which it cooled and solidified has been subsequently carried away . The occurrence at the surface of crystalline schists and ...
... rocks have been removed . The granite appears at the surface simply because the covering of rocks underneath which it cooled and solidified has been subsequently carried away . The occurrence at the surface of crystalline schists and ...
Page 17
... rocks at the surface , but such action could not have caused the broken material to disappear . Further , when we ... rocks all the world over ? And how shall we account for the presence at the sur- face of deep - seated plutonic rocks ...
... rocks at the surface , but such action could not have caused the broken material to disappear . Further , when we ... rocks all the world over ? And how shall we account for the presence at the sur- face of deep - seated plutonic rocks ...
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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