Earth Sculpture; Or, The Origin of Land-forms |
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Page 1
... of vast volcanic eruptions in regions now practi- cally free from earth - throes of any kind . In one place ancient land - surfaces were seen intercalated at inter- vals among great successions of marine strata ; in other I.
... of vast volcanic eruptions in regions now practi- cally free from earth - throes of any kind . In one place ancient land - surfaces were seen intercalated at inter- vals among great successions of marine strata ; in other I.
Page 8
... times very high - not seldom indeed the beds are seen standing on end , like rows of books in a library . This last appearance of extreme disturbance is not confined to the strata of any system ; nevertheless , it 8 EARTH SCULPTURE.
... times very high - not seldom indeed the beds are seen standing on end , like rows of books in a library . This last appearance of extreme disturbance is not confined to the strata of any system ; nevertheless , it 8 EARTH SCULPTURE.
Page 15
... seen below ( see Fig . 5 ) . Obviously , how- ever , a considerable thickness of rock has vanished . Were the missing continuations of the strata to be replaced upon the high side of the fault , they would occupy the space contained ...
... seen below ( see Fig . 5 ) . Obviously , how- ever , a considerable thickness of rock has vanished . Were the missing continuations of the strata to be replaced upon the high side of the fault , they would occupy the space contained ...
Page 24
... seen in the deeply eroded rocks , enormous masses of which , it can be shown , have been thus gradually removed . The evidence of denudation is conspicuous , but its products have for the most part been carried away . In some places ...
... seen in the deeply eroded rocks , enormous masses of which , it can be shown , have been thus gradually removed . The evidence of denudation is conspicuous , but its products have for the most part been carried away . In some places ...
Page 29
... seen , are power- ful agents of chemical change . Without their aid rain - water would be a less effective worker . The living plants themselves , however , attack rocks , and by means of the acids in their roots dissolve out the ...
... seen , are power- ful agents of chemical change . Without their aid rain - water would be a less effective worker . The living plants themselves , however , attack rocks , and by means of the acids in their roots dissolve out the ...
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Common terms and phrases
accumulation Alpine Alps anticlines basalt base-level basins become beds boulder-clay Carboniferous character cirques cliffs coast-lines coasts configuration Cretaceous crust crustal movements crystalline débris denudation deposits depressions depth detritus direction dislocations drainage elevation epigene epigene action epigene agents eroded escarpments feet fiords flow fluvio-glacial fluvio-glacial deposits folds gently geological structure glacial action glacial erosion glaciers gradually ground-moraines hills hollows horizontal strata ice-flow ice-sheet igneous rocks inclined indented infrequently irregular islands joints kind laccoliths lakes land land-forms land-surface lava less limestone low grounds materials mer de glace modified moraines mountain-chain mountain-valleys mountains névé normal faults Old Red Sandstone outcrops owe their origin plain of erosion plateau regions relatively result ridges rock-basins rock-masses sand Sandstone schistose schists Section sediment slopes Southern Uplands strata streams and rivers superficial surface surface-features synclinal tectonic tend thickness tion tracts traversed underground undulating usually valleys vertical volcanic wind