Earth Sculpture; Or, The Origin of Land-forms |
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Page 11
... beds are doubled un- der older beds of the same series of strata ; in other words , the order of succession appears to be inverted . From the fact that strata are generally inclined from the horizontal , and frequently curved and folded ...
... beds are doubled un- der older beds of the same series of strata ; in other words , the order of succession appears to be inverted . From the fact that strata are generally inclined from the horizontal , and frequently curved and folded ...
Page 12
... beds on the other side of the fault . From the facts now briefly set forth we may draw certain conclusions . In the ... bed of the sea has sunk from time to time to greater and greater depths , and has thus 12 EARTH SCULPTURE.
... beds on the other side of the fault . From the facts now briefly set forth we may draw certain conclusions . In the ... bed of the sea has sunk from time to time to greater and greater depths , and has thus 12 EARTH SCULPTURE.
Page 14
... beds . More than this , many plateaux and even lowlands are composed of as highly flexed and con- torted strata as are to be met with in any mountainous country . Evidently , therefore , crustal movement is not the only factor in the ...
... beds . More than this , many plateaux and even lowlands are composed of as highly flexed and con- torted strata as are to be met with in any mountainous country . Evidently , therefore , crustal movement is not the only factor in the ...
Page 17
... beds which is so common a feature of derivative rocks all the world over ? And how shall we account for the presence at the sur- face of deep - seated plutonic rocks and metamorphic masses ? When we have satisfactorily answered such ...
... beds which is so common a feature of derivative rocks all the world over ? And how shall we account for the presence at the sur- face of deep - seated plutonic rocks and metamorphic masses ? When we have satisfactorily answered such ...
Page 20
... beds ( lavas ) , interstrati- fied with derivative rocks , or they penetrate these in the form of irregular veins , dykes , sheets , or large amorphous masses . The lava - form rocks are often associated with beds of volcanic débris ...
... beds ( lavas ) , interstrati- fied with derivative rocks , or they penetrate these in the form of irregular veins , dykes , sheets , or large amorphous masses . The lava - form rocks are often associated with beds of volcanic débris ...
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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