Earth Sculpture; Or, The Origin of Land-forms |
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Page 27
... North America have been scraped bare by ice - sheets , resembling those of Greenland and the Antarctic Circle . In more southern latitudes , the rotted rocks have escaped such abrasion and denudation , and hence it is not strange that ...
... North America have been scraped bare by ice - sheets , resembling those of Greenland and the Antarctic Circle . In more southern latitudes , the rotted rocks have escaped such abrasion and denudation , and hence it is not strange that ...
Page 30
... north as in the sunny lands of the south , at lofty ele- vations as in low - lying plains , the work of rock - waste never ceases . Here it is insolation that is the most potent agent of destruction ; there it is rain aided by humus and ...
... north as in the sunny lands of the south , at lofty ele- vations as in low - lying plains , the work of rock - waste never ceases . Here it is insolation that is the most potent agent of destruction ; there it is rain aided by humus and ...
Page 53
... north and 600022000 north - east , while the slope of the LAND - FORMS IN HORIZONTAL STRATA 53.
... north and 600022000 north - east , while the slope of the LAND - FORMS IN HORIZONTAL STRATA 53.
Page 54
... north and north - east , until , in a distance of 120 miles or thereabouts , they lie bur- ied at a depth of several thousand feet . It is not quite true , therefore , that in the Grand Cañon dis- trict the form of the ground is an ...
... north and north - east , until , in a distance of 120 miles or thereabouts , they lie bur- ied at a depth of several thousand feet . It is not quite true , therefore , that in the Grand Cañon dis- trict the form of the ground is an ...
Page 56
... north - east to west - south - west , and thus de- termined the direction of the primeval Colorado River and its larger tributaries , which headed then as now in the high lands overlooking the basin . 56 URE EARTH SCULPTURE.
... north - east to west - south - west , and thus de- termined the direction of the primeval Colorado River and its larger tributaries , which headed then as now in the high lands overlooking the basin . 56 URE EARTH SCULPTURE.
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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