Earth Sculpture: Or, The Origin of Land-forms |
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Page 5
The derivative rocks, with which in many regions igneous rocks are associated,
occupy by far the larger portion of the land-surface, entering abundantly into the
composition of low grounds and mountains alike. Most of these derivatives are ...
The derivative rocks, with which in many regions igneous rocks are associated,
occupy by far the larger portion of the land-surface, entering abundantly into the
composition of low grounds and mountains alike. Most of these derivatives are ...
Page 38
As a rule, denudation will take place most rapidly over the more steeply inclined
portions of the ground. On mountain declivities and hill slopes rock-disintegration
and the removal of waste products will proceed more actively than upon low ...
As a rule, denudation will take place most rapidly over the more steeply inclined
portions of the ground. On mountain declivities and hill slopes rock-disintegration
and the removal of waste products will proceed more actively than upon low ...
Page 45
The relatively hard and resisting rocks will determine the position of the high
grounds, while the low grounds will practically coincide with the areas occupied
by the more yielding rock-masses. This we shall find holds true to a large extent
of all ...
The relatively hard and resisting rocks will determine the position of the high
grounds, while the low grounds will practically coincide with the areas occupied
by the more yielding rock-masses. This we shall find holds true to a large extent
of all ...
Page 79
In a word, the region would eventually be traversed from left to right by
pronounced lines of escarpment rising to many hundreds of feet above the low
grounds at their base, and falling away in a long gentle slope in the direction of
the dip.
In a word, the region would eventually be traversed from left to right by
pronounced lines of escarpment rising to many hundreds of feet above the low
grounds at their base, and falling away in a long gentle slope in the direction of
the dip.
Page 83
direction, we first traverse low-lying plains of sandstone and argillaceous beds,
until on the other side of the Severn we reach the Cotswolds, a belt of high
ground over 1000 feet in height, and reaching in places a width of 30 miles. The
rocks ...
direction, we first traverse low-lying plains of sandstone and argillaceous beds,
until on the other side of the Severn we reach the Cotswolds, a belt of high
ground over 1000 feet in height, and reaching in places a width of 30 miles. The
rocks ...
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Common terms and phrases
accumulation Alps angles anticlines basalt base-level basins become beds broad Carboniferous character cliffs coast-lines cones configuration Cretaceous crust crustal movements crystalline ddbris denudation deposits depressions detritus direction dislocations drainage elevation epigene action epigene agents eroded eruption 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 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 Palaeozoic plain of erosion plateau regions relatively result ridges rock-basins rock-masses sand Sandstone schistose schists Section sediment shales slopes Southern Uplands strata streams and rivers superficial surface surface-features synclinal tectonic tend thickness tion tracts traversed underground undulating usually valleys vertical volcanic
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