Earth Sculpture; Or, The Origin of Land-forms |
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Page iv
... usually indicate the more notable sources of information . The following works will also be found very helpful as guides and instruct- ors : - Sir A. C. Ramsay's Physical Geology and Geography of Great Britain . Prof. A. H. Green's ...
... usually indicate the more notable sources of information . The following works will also be found very helpful as guides and instruct- ors : - Sir A. C. Ramsay's Physical Geology and Geography of Great Britain . Prof. A. H. Green's ...
Page 20
... lenticular layers . Igneous rocks and schists are traversed by cracks . and fissures which usually ramify irregularly in all directions . In many bedded igneous rocks ( lavas ) , however , these cracks , or “ joints , " 20 EARTH SCULPTURE.
... lenticular layers . Igneous rocks and schists are traversed by cracks . and fissures which usually ramify irregularly in all directions . In many bedded igneous rocks ( lavas ) , however , these cracks , or “ joints , " 20 EARTH SCULPTURE.
Page 21
... usually pre- sent . Some are soft , such as ordinary brick - clay ; others are of firmer consistency , and frequently show a fine fissile structure , as in common argillaceous shale ; yet others are hard , tough rocks , some of which ...
... usually pre- sent . Some are soft , such as ordinary brick - clay ; others are of firmer consistency , and frequently show a fine fissile structure , as in common argillaceous shale ; yet others are hard , tough rocks , some of which ...
Page 22
... usually are the joints which intersect hard slates and quartz- rock , these being divided generally much in the same way as schists and amorphous masses of crystalline igneous rock . There are not a few kinds of rock other than 22 EARTH ...
... usually are the joints which intersect hard slates and quartz- rock , these being divided generally much in the same way as schists and amorphous masses of crystalline igneous rock . There are not a few kinds of rock other than 22 EARTH ...
Page 26
... usually show a weathered crust , which , according to the nature of the rock and the length of time its surface has been exposed , may vary from less than an inch up to many feet , or even yards , in thickness . Some granites , for ...
... usually show a weathered crust , which , according to the nature of the rock and the length of time its surface has been exposed , may vary from less than an inch up to many feet , or even yards , in thickness . Some granites , for ...
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Common terms and phrases
accumulation Alpine Alps anticlines basalt base-level basins become beds boulder-clay Carboniferous character cirques cliffs coast-lines coasts configuration Cretaceous crust crustal movements crystalline débris denudation deposits depressions depth detritus direction dislocations drainage elevation epigene epigene action epigene agents eroded escarpments feet fiords flow fluvio-glacial fluvio-glacial deposits folds gently geological structure glacial action glacial erosion glaciers gradually ground-moraines hills hollows horizontal strata ice-flow ice-sheet igneous rocks inclined indented infrequently irregular islands joints kind laccoliths lakes land land-forms land-surface lava less limestone low grounds materials mer de glace modified moraines mountain-chain mountain-valleys mountains névé normal faults Old Red Sandstone outcrops owe their origin plain of erosion plateau regions relatively result ridges rock-basins rock-masses sand sandstone schistose schists SECTION sediment slopes Southern Uplands strata streams and rivers superficial surface surface-features synclinal tectonic tend thickness tion tracts traversed underground undulating usually valleys vertical volcanic wind