Earth Sculpture; Or, The Origin of Land-forms |
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Page 4
... consist partly of lavas and frag- mental materials which have been ejected at the sur- face , as in modern volcanoes , and partly of formerly molten masses which have cooled and consolidated below ground . The former , therefore , are ...
... consist partly of lavas and frag- mental materials which have been ejected at the sur- face , as in modern volcanoes , and partly of formerly molten masses which have cooled and consolidated below ground . The former , therefore , are ...
Page 5
... consisting of a series of larger and smaller lenticular sheets , irregularly distributed over ' See Appendix for Table of Geological Systems . the earth's surface . The various systems thus fre quently INTRODUCTORY 5.
... consisting of a series of larger and smaller lenticular sheets , irregularly distributed over ' See Appendix for Table of Geological Systems . the earth's surface . The various systems thus fre quently INTRODUCTORY 5.
Page 8
... consist of a great series of sandstones and shales with one prominent bed of limestone ( ) at the top . at the top . In this case we cannot doubt that the horizontal bedding is original - that the strata were accumulated one above the ...
... consist of a great series of sandstones and shales with one prominent bed of limestone ( ) at the top . at the top . In this case we cannot doubt that the horizontal bedding is original - that the strata were accumulated one above the ...
Page 10
... consisting of a thick series of strata disposed in the form of one sin- gle arch or anticline ; while in Fig . 3 , representing B FIG . 3 . SECTION ACROSS SYMMETRICAL ANTICLINES AND SYNCLINES . Upper continuous line , A - B , = surface ...
... consisting of a thick series of strata disposed in the form of one sin- gle arch or anticline ; while in Fig . 3 , representing B FIG . 3 . SECTION ACROSS SYMMETRICAL ANTICLINES AND SYNCLINES . Upper continuous line , A - B , = surface ...
Page 20
... consist partly of glass and partly of crystalline in- gredients , and vary in texture from compact to coarse- grained ; yet others are built up wholly of crystalline substances , and may be fine - grained or very coarsely granular , as ...
... consist partly of glass and partly of crystalline in- gredients , and vary in texture from compact to coarse- grained ; yet others are built up wholly of crystalline substances , and may be fine - grained or very coarsely granular , as ...
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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