Earth Sculpture; Or, The Origin of Land-forms |
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Page iv
... materials used in the preparation of this book are for the most part from the common stock of geo- logical knowledge , and it has not been thought neces- sary , therefore , to burden the pages with references . Those who would pursue ...
... materials used in the preparation of this book are for the most part from the common stock of geo- logical knowledge , and it has not been thought neces- sary , therefore , to burden the pages with references . Those who would pursue ...
Page ix
... materials - Glaciation of North America - Modifications of Surface produced by Glacial Action . CHAPTER XII LAND - FORMS MODIFIED BY OLIAN ACTION Insolation and Deflation in the Sahara - Forms assumed by Gran- itoid Rocks and Horizontal ...
... materials - Glaciation of North America - Modifications of Surface produced by Glacial Action . CHAPTER XII LAND - FORMS MODIFIED BY OLIAN ACTION Insolation and Deflation in the Sahara - Forms assumed by Gran- itoid Rocks and Horizontal ...
Page 4
... materials which have been ejected at the sur- face , as in modern volcanoes , and partly of formerly molten masses which have cooled and consolidated below ground . The former , therefore , are spoken of as volcanic , the latter as ...
... materials which have been ejected at the sur- face , as in modern volcanoes , and partly of formerly molten masses which have cooled and consolidated below ground . The former , therefore , are spoken of as volcanic , the latter as ...
Page 15
... material carried away . In subsequent pages it will be shown that the thickness of rocks thus re- moved can be proved to amount in many cases to thousands of feet . Not less striking is the evidence of rock - removal furnished by the ...
... material carried away . In subsequent pages it will be shown that the thickness of rocks thus re- moved can be proved to amount in many cases to thousands of feet . Not less striking is the evidence of rock - removal furnished by the ...
Page 17
... material to disappear . Further , when we bear in mind that the thickness of rock removed from the surface of the land is sometimes to be measured by many thousands of feet , or even yards , we see at once that subterranean action ...
... material to disappear . Further , when we bear in mind that the thickness of rock removed from the surface of the land is sometimes to be measured by many thousands of feet , or even yards , we see at once that subterranean action ...
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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