Earth Sculpture; Or, The Origin of Land-forms |
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Page ix
... Superficial and Subterranean Erosion - Temporary Lakes - Caves in Limestone -Caves in and underneath Lava- " Crystal Cellars " -Rock - shelters -Sea - caves . 250 266 CHAPTER XIV BASINS . Basins due to Crustal Deformation - Crater ...
... Superficial and Subterranean Erosion - Temporary Lakes - Caves in Limestone -Caves in and underneath Lava- " Crystal Cellars " -Rock - shelters -Sea - caves . 250 266 CHAPTER XIV BASINS . Basins due to Crustal Deformation - Crater ...
Page 8
... superficial rock - masses of which are horizontally arranged . The upper line of the section ( A - B ) represents , of course , the surface of the ground , while the lower we shall take to be the level of the sea . The section thus ...
... superficial rock - masses of which are horizontally arranged . The upper line of the section ( A - B ) represents , of course , the surface of the ground , while the lower we shall take to be the level of the sea . The section thus ...
Page 13
... superficial space . Hence its rocky framework becomes subjected to enormous tan- gential squeezing and compression to which it yields . by bending and folding , by fracture and displacement . Obviously , then , the mysterious ...
... superficial space . Hence its rocky framework becomes subjected to enormous tan- gential squeezing and compression to which it yields . by bending and folding , by fracture and displacement . Obviously , then , the mysterious ...
Page 19
... superficial agents of change . As these agents are often associated in their work , it is sometimes hard , or even impossible , to say which has played the most effective part in the demolition of rocks . Nevertheless , it will conduce ...
... superficial agents of change . As these agents are often associated in their work , it is sometimes hard , or even impossible , to say which has played the most effective part in the demolition of rocks . Nevertheless , it will conduce ...
Page 23
... superficial or epigene agents attack and reduce rocks . And first , we may note that rocks at the surface are everywhere subject to changes of temperature - warmed by day and during summer , cooled at night and during win- ter . Thus ...
... superficial or epigene agents attack and reduce rocks . And first , we may note that rocks at the surface are everywhere subject to changes of temperature - warmed by day and during summer , cooled at night and during win- ter . Thus ...
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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