Earth Sculpture; Or, The Origin of Land-forms |
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Page 1
... ROCKS AND ROCK - STRUCTURES - ARCHITECTURE OF THE EARTH'S CRUST -GENERAL EVIDENCE OF ROCK - REMOVAL . HEN geologists ... masses ; there , again , they encountered the relics of vast volcanic eruptions in regions now practi- cally free ...
... ROCKS AND ROCK - STRUCTURES - ARCHITECTURE OF THE EARTH'S CRUST -GENERAL EVIDENCE OF ROCK - REMOVAL . HEN geologists ... masses ; there , again , they encountered the relics of vast volcanic eruptions in regions now practi- cally free ...
Page 4
... rock of aqueous origin is limestone , of which there are count- less ... rocks of terrestrial origin , such , for example , as many beds and seams of peat , lignite ... masses which have cooled and consolidated below ground . The former ...
... rock of aqueous origin is limestone , of which there are count- less ... rocks of terrestrial origin , such , for example , as many beds and seams of peat , lignite ... masses which have cooled and consolidated below ground . The former ...
Page 8
... rocks show the same horizontal arrangement , a struct- ure which is obviously original . And this is frequently the ... rock - masses of which are horizontally arranged . The upper line of the section ( A - B ) represents , of course ...
... rocks show the same horizontal arrangement , a struct- ure which is obviously original . And this is frequently the ... rock - masses of which are horizontally arranged . The upper line of the section ( A - B ) represents , of course ...
Page 15
... masses of strata have disappeared ; the tops or backs of the anticlinal arches have been more or less deeply incised , and the material carried away . In subsequent pages it will be shown that the thickness of rocks thus re- moved can ...
... masses of strata have disappeared ; the tops or backs of the anticlinal arches have been more or less deeply incised , and the material carried away . In subsequent pages it will be shown that the thickness of rocks thus re- moved can ...
Page 16
... rock believed to be of deep - seated origin . Its plutonic character is evinced not less by its composition and structure than by its relation to the rock - masses that surround it . Every mass of granite , then , has cooled and ...
... rock believed to be of deep - seated origin . Its plutonic character is evinced not less by its composition and structure than by its relation to the rock - masses that surround it . Every mass of granite , then , has cooled and ...
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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