Earth Sculpture; Or, The Origin of Land-forms |
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Page 213
... glacial erosion , we may consider the evidence in some little detail . For this purpose we may approach the subject much in the same way as a geologist would do were he en- deavouring to prove for the first time that ... GLACIAL ACTION 213.
... glacial erosion , we may consider the evidence in some little detail . For this purpose we may approach the subject much in the same way as a geologist would do were he en- deavouring to prove for the first time that ... GLACIAL ACTION 213.
Page 215
... action . Everyone , in short , admits that some degree of ero- sion is the result of glacial action . Were that action entirely confined to mere abrasion and smoothing of rock - surfaces , it yet could hardly be considered insig ...
... action . Everyone , in short , admits that some degree of ero- sion is the result of glacial action . Were that action entirely confined to mere abrasion and smoothing of rock - surfaces , it yet could hardly be considered insig ...
Page 217
... glaciers of the Alps , it must be the same in a more marked degree with those of high northern and Arctic lands . Reference has already been made to the fact that even in the Alps certain summit - glaciers are so ... GLACIAL ACTION 217.
... glaciers of the Alps , it must be the same in a more marked degree with those of high northern and Arctic lands . Reference has already been made to the fact that even in the Alps certain summit - glaciers are so ... GLACIAL ACTION 217.
Page 219
... glacial detritus , which the ice builds up into low mounds and ridges . But if superficial moraines are sparingly devel- oped , the same is not the case with ground - moraines . These are seen not ... infraglacial ori- GLACIAL ACTION 219.
... glacial detritus , which the ice builds up into low mounds and ridges . But if superficial moraines are sparingly devel- oped , the same is not the case with ground - moraines . These are seen not ... infraglacial ori- GLACIAL ACTION 219.
Page 221
... - tering , and in the production of a rubble of angular fragments . Similar phenomena have been observed by MM . Penck , Brückner , and Baltzer at the Uebergossenen Alm . During the past thirty years this glacier has GLACIAL ACTION 221.
... - tering , and in the production of a rubble of angular fragments . Similar phenomena have been observed by MM . Penck , Brückner , and Baltzer at the Uebergossenen Alm . During the past thirty years this glacier has GLACIAL ACTION 221.
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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