Earth Sculpture; Or, The Origin of Land-forms |
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Page 28
... condition to be swept away by wind or melting snow . By this means the solid rock again comes within reach of the action of frost , and so the work of disruption and disintegration continues . The great heaps or " 28 EARTH SCULPTURE.
... condition to be swept away by wind or melting snow . By this means the solid rock again comes within reach of the action of frost , and so the work of disruption and disintegration continues . The great heaps or " 28 EARTH SCULPTURE.
Page 31
... reach the sea , help us to appreciate the amount of rock - material which underground water is capable of removing . When we add to this all the mineral matter leached out at the surface and carried away by streams and rivers , it is ...
... reach the sea , help us to appreciate the amount of rock - material which underground water is capable of removing . When we add to this all the mineral matter leached out at the surface and carried away by streams and rivers , it is ...
Page 55
... reach a united thickness of over 15,000 feet it may at first sight appear impossible that so thick a mass of materials could accumulate in a shallow sea . The explanation , however , is simple enough - sub- sidence kept pace with ...
... reach a united thickness of over 15,000 feet it may at first sight appear impossible that so thick a mass of materials could accumulate in a shallow sea . The explanation , however , is simple enough - sub- sidence kept pace with ...
Page 83
... reach the Cotswolds , a belt of high ground over 1000 feet in height , and reaching in places a width of 30 miles . The rocks of which these hills are composed consist principally of limestones , which , as they dip gently eastwards ...
... reach the Cotswolds , a belt of high ground over 1000 feet in height , and reaching in places a width of 30 miles . The rocks of which these hills are composed consist principally of limestones , which , as they dip gently eastwards ...
Page 138
... reach the broad Nithsdale , whence the drainage is directed south - east , so that Nithsdale may be said to cut right across the Uplands from north - west to south - east . This is probably a case of capture , the Nith , working back ...
... reach the broad Nithsdale , whence the drainage is directed south - east , so that Nithsdale may be said to cut right across the Uplands from north - west to south - east . This is probably a case of capture , the Nith , working back ...
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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