Earth Sculpture; Or, The Origin of Land-forms |
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Page 9
... of equal length . Here we have a succession of anticlines , or saddle - backs , separated one from another by troughs , or synclines , as they are termed . In other words , the strata are undulating . From these sections INTRODUCTORY 9.
... of equal length . Here we have a succession of anticlines , or saddle - backs , separated one from another by troughs , or synclines , as they are termed . In other words , the strata are undulating . From these sections INTRODUCTORY 9.
Page 10
James Geikie. words , the strata are undulating . From these sections we learn that folds or undulations vary considerably in width . In the region represented by Fig . 2 we have an area six miles in breadth , consisting of a thick ...
James Geikie. words , the strata are undulating . From these sections we learn that folds or undulations vary considerably in width . In the region represented by Fig . 2 we have an area six miles in breadth , consisting of a thick ...
Page 15
... undulating tracts , and be quite unconscious of the fact that geologically we have several times leaped up or jumped down hundreds of feet in a single step . Nay , some rivers flow across dislocations by which the strata have been ...
... undulating tracts , and be quite unconscious of the fact that geologically we have several times leaped up or jumped down hundreds of feet in a single step . Nay , some rivers flow across dislocations by which the strata have been ...
Page 33
... undulating tracts rain washes the finer particles down the slopes and spreads them over the hollows . After exceptionally heavy or long- continued rain this process becomes intensified — fine mud , silt , sand , and grit are swept into ...
... undulating tracts rain washes the finer particles down the slopes and spreads them over the hollows . After exceptionally heavy or long- continued rain this process becomes intensified — fine mud , silt , sand , and grit are swept into ...
Page 50
... undulating , furrowed , and irregular surface . Some alluvial tracts , indeed , have been so cut up by rain and running water that , in the rough , rolling ground over which he toils , the traveller may find it hard to recognise the ...
... undulating , furrowed , and irregular surface . Some alluvial tracts , indeed , have been so cut up by rain and running water that , in the rough , rolling ground over which he toils , the traveller may find it hard to recognise the ...
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Common terms and phrases
accumulation Alpine Alps anticlines basalt base-level basins become beds boulder-clay Carboniferous character cirques cliffs coast-lines coasts configuration Cretaceous crust crustal movements crystalline débris denudation deposits depressions depth detritus direction dislocations drainage elevation epigene epigene action epigene agents eroded escarpments feet fiords flow fluvio-glacial fluvio-glacial deposits folds gently geological structure glacial action glacial erosion glaciers gradually ground-moraines hills hollows horizontal strata ice-flow ice-sheet igneous rocks inclined indented infrequently irregular islands joints kind laccoliths lakes land land-forms land-surface lava less limestone low grounds materials mer de glace modified moraines mountain-chain mountain-valleys mountains névé normal faults Old Red Sandstone outcrops owe their origin plain of erosion plateau regions relatively result ridges rock-basins rock-masses sand Sandstone schistose schists Section sediment slopes Southern Uplands strata streams and rivers superficial surface surface-features synclinal tectonic tend thickness tion tracts traversed underground undulating usually valleys vertical volcanic wind