Earth Sculpture; Or, The Origin of Land-forms |
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Page 150
... dislocations or fractures by which rocks are frequently traversed . These , as we saw , are of two kinds - normal faults and reversed faults or over- thrusts . The latter have been sufficiently referred to in connection with the ...
... dislocations or fractures by which rocks are frequently traversed . These , as we saw , are of two kinds - normal faults and reversed faults or over- thrusts . The latter have been sufficiently referred to in connection with the ...
Page 151
... dislocations , we may find a series of more or less closely set parallel minor faults . When the down- throw of all ... dislocation with a large downthrow . Another fact may be noted : faults , especially large ones , often split up , as ...
... dislocations , we may find a series of more or less closely set parallel minor faults . When the down- throw of all ... dislocation with a large downthrow . Another fact may be noted : faults , especially large ones , often split up , as ...
Page 152
... dislocations very often trend in the same direction as the strike of the strata . Now and again , indeed , when a large fault can be followed to the end , it is found gradually to die out in a fold or flexure . In other words , what is ...
... dislocations very often trend in the same direction as the strike of the strata . Now and again , indeed , when a large fault can be followed to the end , it is found gradually to die out in a fold or flexure . In other words , what is ...
Page 154
... dislocation of the crust of large extent would show directly at the surface . But somewhat similar results would follow ... dislocations exist . Bearing in mind the activity of the denuding agents , we might expect that normal faults of ...
... dislocation of the crust of large extent would show directly at the surface . But somewhat similar results would follow ... dislocations exist . Bearing in mind the activity of the denuding agents , we might expect that normal faults of ...
Page 155
... dislocation , we find , have been planed down to d FIG . 61. NORMAL FAULT , WITH HIGH GROUND ON DOWNTHROW Side . the same ... dislocations which have been detected underground . Downthrows of hundreds of feet give rise to no superficial ...
... dislocation , we find , have been planed down to d FIG . 61. NORMAL FAULT , WITH HIGH GROUND ON DOWNTHROW Side . the same ... dislocations which have been detected underground . Downthrows of hundreds of feet give rise to no superficial ...
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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