The Student's Handbook of Physical Geology |
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Page 14
... Kind of Rock . 1. Greenstone ( Diorite ) 2. Basalt . 3. Granite 4. Marble 5. Slate 6. Sandstone 7. Chalk and Bath Oolite . Mean Density . 3.0 2.9 2.7 2.7 2.7 2.6 2.5 That the mean density of the earth should be greater than that of the ...
... Kind of Rock . 1. Greenstone ( Diorite ) 2. Basalt . 3. Granite 4. Marble 5. Slate 6. Sandstone 7. Chalk and Bath Oolite . Mean Density . 3.0 2.9 2.7 2.7 2.7 2.6 2.5 That the mean density of the earth should be greater than that of the ...
Page 26
... kind of mud , which sets into a firm , but light and porous stone , and is known by the name of tuff or tufa . A strong wind blowing at the time sometimes causes a greater accumulation on one side of the mountain than on the other . The ...
... kind of mud , which sets into a firm , but light and porous stone , and is known by the name of tuff or tufa . A strong wind blowing at the time sometimes causes a greater accumulation on one side of the mountain than on the other . The ...
Page 29
... kind has been the formation of a regularly conical mountain , with a gradually diminishing slope on all sides , from the central heights to the plain around , exhibiting in the ravines that furrow its sides , as well as in the abrupt ...
... kind has been the formation of a regularly conical mountain , with a gradually diminishing slope on all sides , from the central heights to the plain around , exhibiting in the ravines that furrow its sides , as well as in the abrupt ...
Page 34
... kind of volcanic island was formed in the Mediterranean about 30 miles off the south - west coast of Sicily during the summer of 1831 , at a spot where previous soundings had ascertained the depth of the sea to be 600 feet . Its ...
... kind of volcanic island was formed in the Mediterranean about 30 miles off the south - west coast of Sicily during the summer of 1831 , at a spot where previous soundings had ascertained the depth of the sea to be 600 feet . Its ...
Page 39
... kind of rock to another causes refractions , so that the actual form of the wave at the surface is com- plex and irregular . The earth - wave travels most rapidly through hard and compact rocks , less rapidly through soft and incoherent ...
... kind of rock to another causes refractions , so that the actual form of the wave at the surface is com- plex and irregular . The earth - wave travels most rapidly through hard and compact rocks , less rapidly through soft and incoherent ...
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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