Earth Sculpture; Or, The Origin of Land-forms |
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Page xiii
... basins on a true scale 87. Sea - cliff cut in Strata dipping Inland 88. Sea - cliff cut in Strata dipping Seaward 89. Sea - cliff cut in Beds dipping Seaward 256 259 · 259 293 319 320 320 323 FULL - PAGE PLATES Plate I. Joints in ...
... basins on a true scale 87. Sea - cliff cut in Strata dipping Inland 88. Sea - cliff cut in Strata dipping Seaward 89. Sea - cliff cut in Beds dipping Seaward 256 259 · 259 293 319 320 320 323 FULL - PAGE PLATES Plate I. Joints in ...
Page 38
... basin in 6000 years ; and the Mississippi is not so active a worker as many other rivers . An aver- age of many estimates of the similar work performed by rivers in all quarters of the globe shows that the rate at which drainage - areas ...
... basin in 6000 years ; and the Mississippi is not so active a worker as many other rivers . An aver- age of many estimates of the similar work performed by rivers in all quarters of the globe shows that the rate at which drainage - areas ...
Page 50
... basin alluvial terraces and plains usually occur at various heights , marking successive levels at which the river and its tributaries have flowed while deepening their courses . The lowest terraces and flood - plains are , of course ...
... basin alluvial terraces and plains usually occur at various heights , marking successive levels at which the river and its tributaries have flowed while deepening their courses . The lowest terraces and flood - plains are , of course ...
Page 56
... 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 alluvial plain . At this stage the nearly level surface of the drained ...
... 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 alluvial plain . At this stage the nearly level surface of the drained ...
Page 57
... basin . Here they were for a long period exposed to the erosive action of epigene agents , and must have suffered much loss . But all such denudation sinks into insig- nificance when we consider the magnitude of the erosion which has ...
... basin . Here they were for a long period exposed to the erosive action of epigene agents , and must have suffered much loss . But all such denudation sinks into insig- nificance when we consider the magnitude of the erosion which has ...
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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