The Student's Handbook of Physical GeologyG. Bell and Sons, 1884 - 514 pages |
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Page x
... River - erosion . The base - level of Erosion . § 2. Action of moving Ice : -Glaciers , their formation and mode of ... rivers : -Transportation of de- tritus . Deposition of detritus . Gravel beds and Alluvial levels . Formation of ...
... River - erosion . The base - level of Erosion . § 2. Action of moving Ice : -Glaciers , their formation and mode of ... rivers : -Transportation of de- tritus . Deposition of detritus . Gravel beds and Alluvial levels . Formation of ...
Page 3
... river - bank , and the mountain - side , are his subjects , which he has to examine and dissect . " From the indications observed in all natural and artificial excava- tions , he must make out the internal structure or solid geometry of ...
... river - bank , and the mountain - side , are his subjects , which he has to examine and dissect . " From the indications observed in all natural and artificial excava- tions , he must make out the internal structure or solid geometry of ...
Page 26
... river , and flows far out from the base of the volcano ; but more usually it only preserves its fluidity for a short distance from the point of exit , a rough slaggy crust quickly form- ing over the surface of the coulée , though the ...
... river , and flows far out from the base of the volcano ; but more usually it only preserves its fluidity for a short distance from the point of exit , a rough slaggy crust quickly form- ing over the surface of the coulée , though the ...
Page 42
... rivers , and gave rise to new lakes . Thus enormous masses of land were detached from each side of the deep valley or ravine of Terranuova , and blocked up the course of the river , causing the formation of a large lake . It is stated ...
... rivers , and gave rise to new lakes . Thus enormous masses of land were detached from each side of the deep valley or ravine of Terranuova , and blocked up the course of the river , causing the formation of a large lake . It is stated ...
Page 47
... Rivers . - The masses of earth and rock thus detached from the sides of a valley often block up the stream at the bottom , and cause the formation of a lake . If the barrier remain , and the stream is diverted into a new course , the ...
... Rivers . - The masses of earth and rock thus detached from the sides of a valley often block up the stream at the bottom , and cause the formation of a lake . If the barrier remain , and the stream is diverted into a new course , the ...
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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 chalk chemical clay cleavage cliffs coal coast colour consist containing coral cracks crystalline crystals deposits depth described detrition distance district dolerite Dolomite dykes earth elevation erosion fault feet felspar fissures Foraminifera formation formed fragments frequently Geol glacier glauconite gradually granite greensand ground hills horizontal hornblende igneous rocks iron island joints Jukes lake land lava layers less Leucite limestone magnesia mass material matter metamorphic metamorphic rocks mica miles mineral mountain occur origin Orthoclase outcrops oxides particles pebbles planes porphyritic portion present pressure produced quartz rain reef river salt sand sandstone shale shells shore side silicate silicate of alumina slope solid solution sometimes stone strata stratified rocks stream structure substances sulphate surface thickness tide tion tuffs valley vertical volcanic waves