Earth Sculpture; Or, The Origin of Land-forms |
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Results 1-5 of 57
Page xi
... Ridge , Green River Plains ( Powell ) . Isoclinal Folds 27 . 28. Isoclinal Folds II • · 41 · 51 54 58 • 88 62 69 74 • 74 75 77 78 79 80 84 84 86 87 88 88 89 90 93 94 29 . Isoclinal Folds 94 30 . Overfold passing into Reversed Fault , or ...
... Ridge , Green River Plains ( Powell ) . Isoclinal Folds 27 . 28. Isoclinal Folds II • · 41 · 51 54 58 • 88 62 69 74 • 74 75 77 78 79 80 84 84 86 87 88 88 89 90 93 94 29 . Isoclinal Folds 94 30 . Overfold passing into Reversed Fault , or ...
Page xii
... Ridges of Pennsylvania ( H. D. Rogers ) 118 · 55. Unsymmetrical Folds , giving rise to Escarpments and Ridges 56. Structure of the Ardennes ( after Cornet and Briart ) . 57. Diagrammatic Section across a Plateau of Erosion · 120 126 129 ...
... Ridges of Pennsylvania ( H. D. Rogers ) 118 · 55. Unsymmetrical Folds , giving rise to Escarpments and Ridges 56. Structure of the Ardennes ( after Cornet and Briart ) . 57. Diagrammatic Section across a Plateau of Erosion · 120 126 129 ...
Page 14
James Geikie. ure and underground structure can be traced . The mountain ridges do not correspond to great swellings of the crust ; the valleys neither lie in trough - shaped strata , nor do they coincide with gaping fractures . Again ...
James Geikie. ure and underground structure can be traced . The mountain ridges do not correspond to great swellings of the crust ; the valleys neither lie in trough - shaped strata , nor do they coincide with gaping fractures . Again ...
Page 46
... ridges which they sometimes traverse ; or , to put it in another way , new mountains may come into existence without deflecting the rivers across whose valleys they may seem at one time to have extended - for the rivers have simply ...
... ridges which they sometimes traverse ; or , to put it in another way , new mountains may come into existence without deflecting the rivers across whose valleys they may seem at one time to have extended - for the rivers have simply ...
Page 65
... ridges gradu- ally crumble down , until at last all abrupt and pro- minent irregularities of surface disappear , and the once elevated plain returns to its former state , that of a gently undulating or approximately flat stretch of low ...
... ridges gradu- ally crumble down , until at last all abrupt and pro- minent irregularities of surface disappear , and the once elevated plain returns to its former state , that of a gently undulating or approximately flat stretch of low ...
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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