Earth Sculpture; Or, The Origin of Land-forms |
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Page 51
... deposits , such as gravel , sand , clay , silt , loam , and so forth . And it is worthy of note that the nature of the deposits has to some ex- FIG . 7. SECTION ACROSS A SERIES OF ALLUVIAL TERRACES . , solid rocks ; 1 , oldest terrace ...
... deposits , such as gravel , sand , clay , silt , loam , and so forth . And it is worthy of note that the nature of the deposits has to some ex- FIG . 7. SECTION ACROSS A SERIES OF ALLUVIAL TERRACES . , solid rocks ; 1 , oldest terrace ...
Page 52
... deposits of which they are built up have been laid down in approximately horizontal or gently inclined layers , and the even or level surface is thus simply an expression of the arrangement of the bedding . In a word , the geological ...
... deposits of which they are built up have been laid down in approximately horizontal or gently inclined layers , and the even or level surface is thus simply an expression of the arrangement of the bedding . In a word , the geological ...
Page 56
... deposits appear likewise to have been laid down chiefly in shallow water , it may be inferred that the slow subsid- ence of the area which accompanied the accumula- tion of the underlying marine strata was repeated during the lacustrine ...
... deposits appear likewise to have been laid down chiefly in shallow water , it may be inferred that the slow subsid- ence of the area which accompanied the accumula- tion of the underlying marine strata was repeated during the lacustrine ...
Page 129
... deposit . The characteristic feature of the latter , it will be remem- bered , is the general coincidence of the surface with the underground structure , while the former shows no such correspondence . The structure of a table- land of ...
... deposit . The characteristic feature of the latter , it will be remem- bered , is the general coincidence of the surface with the underground structure , while the former shows no such correspondence . The structure of a table- land of ...
Page 159
... deposits ; xx , granite , schists , and bedded rocks of various age ; ff , faults . Each mountain is a " uniclinal orographic block , " tilted in the direction indicated by the close lines ; the latter , therefore , do not represent ...
... deposits ; xx , granite , schists , and bedded rocks of various age ; ff , faults . Each mountain is a " uniclinal orographic block , " tilted in the direction indicated by the close lines ; the latter , therefore , do not represent ...
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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