The Student's Handbook of Physical GeologyG. Bell and Sons, 1884 - 514 pages |
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Page 4
... learn of mineralogy , the number of animals and plants , with the forms and names of which he will have to make himself familiar , must be reckoned by hundreds . From the foregoing remarks it will be seen that before 4 INTRODUCTION .
... learn of mineralogy , the number of animals and plants , with the forms and names of which he will have to make himself familiar , must be reckoned by hundreds . From the foregoing remarks it will be seen that before 4 INTRODUCTION .
Page 5
... seen at work in various parts of the world , and to show the student how these operations will explain the facts observable in the crust of the earth , and how they will account for the diversified features which its surface presents ...
... seen at work in various parts of the world , and to show the student how these operations will explain the facts observable in the crust of the earth , and how they will account for the diversified features which its surface presents ...
Page 9
... seen that this equatorial bulge of 70,000 feet , though only about part of an equatorial radius , repre- sents the bulk or weight of an enormous mass of -THE MASS AND GENERAL STRUCTURE OF EARTH The shape of the Earth and its ...
... seen that this equatorial bulge of 70,000 feet , though only about part of an equatorial radius , repre- sents the bulk or weight of an enormous mass of -THE MASS AND GENERAL STRUCTURE OF EARTH The shape of the Earth and its ...
Page 15
... seen that the interior of the earth may still have a very high temperature of its own , and if this be the case , the expanding force of heat would partially counteract the compressing force of gravity , so as to pre- vent the materials ...
... seen that the interior of the earth may still have a very high temperature of its own , and if this be the case , the expanding force of heat would partially counteract the compressing force of gravity , so as to pre- vent the materials ...
Page 21
... seen minor cones com- posed entirely of dust , cinders , and stones which have been thrown up from these lateral vents . Lastly , the lava which has risen from below is represented by the thick black lines which intersect the mountain ...
... seen minor cones com- posed entirely of dust , cinders , and stones which have been thrown up from these lateral vents . Lastly , the lava which has risen from below is represented by the thick black lines which intersect the mountain ...
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Common terms and phrases
accumulated acid action alumina amount angles anticlinal augite basalt beds blocks bottom calcareous called carbonate of lime carbonic acid chalk chemical clay cleavage cliffs coal coast colour consist containing coral cracks crystalline crystals denudation deposits depth described detrition distance district dolerite dykes earth earth's crust elevation erosion excavated fault feet felspar fissures Foraminifera formation formed fragments Geol glacier glauconite gradually granite greensand ground hills horizontal hornblende igneous rocks island joints Jukes lake land lava layers less limestone magnesia mass material matter metamorphic metamorphic rocks mica miles mineral mountain observed occur origin Orthoclase outcrops particles pebbles planes porphyritic portion present pressure produced quartz rain reef river salt sand sandstone shales shells shore side siliceous Silurian slope solid solution sometimes stones strata stratified rocks stream structure sulphate surface synclinal thickness tide tion Trans valley vertical volcanic waves