Earth Sculpture; Or, The Origin of Land-forms |
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Page 7
... accumulation of similar sediments in our own day . The wide flats of our river- valleys , the broad plains that occupy the sites of silted- up lakes , the extensive deltas of such rivers as the Nile , the Po , the Amazon , the ...
... accumulation of similar sediments in our own day . The wide flats of our river- valleys , the broad plains that occupy the sites of silted- up lakes , the extensive deltas of such rivers as the Nile , the Po , the Amazon , the ...
Page 8
... accumulated one above the other in . the same order as we see them . sea . Although such horizontal arrangements are of com- mon enough occurrence , and now and again charac- terise the sedimentary systems over wide areas , yet , as a ...
... accumulated one above the other in . the same order as we see them . sea . Although such horizontal arrangements are of com- mon enough occurrence , and now and again charac- terise the sedimentary systems over wide areas , yet , as a ...
Page 28
... accumulations of angular débris . To such an extent has this action taken place , that in some countries the rocks are more or less completely buried in their own ruins . By - and - by so great do these accumulations become that frost ...
... accumulations of angular débris . To such an extent has this action taken place , that in some countries the rocks are more or less completely buried in their own ruins . By - and - by so great do these accumulations become that frost ...
Page 33
... accumulations of disintegrated materials become more or less saturated by melting snow . Το such a degree is this soaking sometimes carried , that the whole surface of sloping fields may be set in mo- tion . The soils creep , slide ...
... accumulations of disintegrated materials become more or less saturated by melting snow . Το such a degree is this soaking sometimes carried , that the whole surface of sloping fields may be set in mo- tion . The soils creep , slide ...
Page 41
... accumulated upon the sea - bottom have subsequently , owing to crustal movements , entered FIG . 6. SECTION ACROSS UNCONFORMABLE STRATA . a a , beds of sandstone , shale , etc .; bb , conglomerates and sandstone resting discordantly or ...
... accumulated upon the sea - bottom have subsequently , owing to crustal movements , entered FIG . 6. SECTION ACROSS UNCONFORMABLE STRATA . a a , beds of sandstone , shale , etc .; bb , conglomerates and sandstone resting discordantly or ...
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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