Earth Sculpture; Or, The Origin of Land-forms |
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Page 43
... horizontal beds having been greatly denuded , trenched , and furrowed , so that at the bottom of deep valleys the underlying older series has been laid bare and eaten into by running water . Such is the kind of tale which one may read ...
... horizontal beds having been greatly denuded , trenched , and furrowed , so that at the bottom of deep valleys the underlying older series has been laid bare and eaten into by running water . Such is the kind of tale which one may read ...
Page 44
James Geikie. CHAPTER III LAND - FORMS IN REGIONS OF HORIZONTAL STRATA VARIOUS FACTORS DETERMINING EARTH SCULPTURE - INFLUENCE OF GEOLOGICAL STRUCTURE AND THE CHARACTER OF ROCKS IN DETERMINING THE CONFIGURATION ASSUMED BY HORIZONTAL ...
James Geikie. CHAPTER III LAND - FORMS IN REGIONS OF HORIZONTAL STRATA VARIOUS FACTORS DETERMINING EARTH SCULPTURE - INFLUENCE OF GEOLOGICAL STRUCTURE AND THE CHARACTER OF ROCKS IN DETERMINING THE CONFIGURATION ASSUMED BY HORIZONTAL ...
Page 45
... it presented when rains and rivers were just beginning the work of erosion . For it is obvious that the direction of the drainage must have been determined in the first place by the original LAND - FORMS IN HORIZONTAL STRATA 45.
... it presented when rains and rivers were just beginning the work of erosion . For it is obvious that the direction of the drainage must have been determined in the first place by the original LAND - FORMS IN HORIZONTAL STRATA 45.
Page 47
... This move- ment necessarily results in the fracturing and wrinkling of the crust , which as it sinks is compelled to occupy a smaller superficial area . The deformation brought about in LAND - FORMS IN HORIZONTAL STRATA 47.
... This move- ment necessarily results in the fracturing and wrinkling of the crust , which as it sinks is compelled to occupy a smaller superficial area . The deformation brought about in LAND - FORMS IN HORIZONTAL STRATA 47.
Page 48
... horizontal thrust , that masses of rock , thousands of feet in thickness , have sheared under the pressure and travelled forwards for miles , older rocks being pushed forward bodily over younger masses . But besides such horizontal ...
... horizontal thrust , that masses of rock , thousands of feet in thickness , have sheared under the pressure and travelled forwards for miles , older rocks being pushed forward bodily over younger masses . But besides such horizontal ...
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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