Earth Sculpture; Or, The Origin of Land-forms |
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Page 50
... rise to higher levels , the terraces and plains become more and more denuded . The highest - lying river - accumulations , in- deed , may be so much eaten into and washed down . that only scattered patches may remain , and few or 50 ...
... rise to higher levels , the terraces and plains become more and more denuded . The highest - lying river - accumulations , in- deed , may be so much eaten into and washed down . that only scattered patches may remain , and few or 50 ...
Page 56
... rise having been experienced by the uplands surrounding the la- custrine basin . Eventually the river , escaping over the lower lip of that basin , deepened the outlet and succeeded in draining the lake , which was then re- placed by an ...
... rise having been experienced by the uplands surrounding the la- custrine basin . Eventually the river , escaping over the lower lip of that basin , deepened the outlet and succeeded in draining the lake , which was then re- placed by an ...
Page 58
... conspicuous table - shaped and pyr- amidal hills , rising more or less abruptly above the great Carbon- iferous platform . The accompany- ing diagram shows the general relations of those isolated " buttes " and " mesas 58 EARTH SCULPTURE.
... conspicuous table - shaped and pyr- amidal hills , rising more or less abruptly above the great Carbon- iferous platform . The accompany- ing diagram shows the general relations of those isolated " buttes " and " mesas 58 EARTH SCULPTURE.
Page 63
... rise higher and higher . The ex- posed strata above , however , having no such protec- tion , weather as before , each rock - tier retreating , but at a gradually diminishing rate . What form the ground LAND - FORMS IN HORIZONTAL STRATA 63.
... rise higher and higher . The ex- posed strata above , however , having no such protec- tion , weather as before , each rock - tier retreating , but at a gradually diminishing rate . What form the ground LAND - FORMS IN HORIZONTAL STRATA 63.
Page 69
... rise in gentle acclivities , but more generally they show steep and abrupt slopes , which in several instances have inclinations of 25 ° to Position of Coal FIG . II . Howe Cirque - valley Position of coal Tuanahelgafield Coal SECTION ...
... rise in gentle acclivities , but more generally they show steep and abrupt slopes , which in several instances have inclinations of 25 ° to Position of Coal FIG . II . Howe Cirque - valley Position of coal Tuanahelgafield Coal SECTION ...
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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