The Geological ObserverLongman, Brown, Green, and Longmans, 1853 - 740 стор. |
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Сторінка xvii
... given whenever it can be accomplished , and that the mere term granitic be accompanied by mineralogical detail , and by a state- ment of the chemical composition , so that correct data may be collected for a proper appreciation of the ...
... given whenever it can be accomplished , and that the mere term granitic be accompanied by mineralogical detail , and by a state- ment of the chemical composition , so that correct data may be collected for a proper appreciation of the ...
Сторінка xx
... given time upon the earth's surface , has to consider the relative amount and position of the land and waters of that time , with all their modifying influences , as also the various conditions under which the life of the period may ...
... given time upon the earth's surface , has to consider the relative amount and position of the land and waters of that time , with all their modifying influences , as also the various conditions under which the life of the period may ...
Сторінка xxi
... given and succeeding geological times . Without , in the least , doubting that very great modification may be found needed in classifications based upon the examinations of even considerable areas , when an effective classification ...
... given and succeeding geological times . Without , in the least , doubting that very great modification may be found needed in classifications based upon the examinations of even considerable areas , when an effective classification ...
Сторінка 19
... given depths beyond that temperature which , if the heated waters did not rise through them , they would possess , but the discharge of waters , as a whole constant , and other conditions the same , there would be a final adjustment of ...
... given depths beyond that temperature which , if the heated waters did not rise through them , they would possess , but the discharge of waters , as a whole constant , and other conditions the same , there would be a final adjustment of ...
Сторінка 26
... given magnitude , form , or specific gravity can be either pushed onwards by , or be mechanically suspended in , the rivers , at another the detrius , previously at rest , is readily borne onwards , and effects produced which , without ...
... given magnitude , form , or specific gravity can be either pushed onwards by , or be mechanically suspended in , the rivers , at another the detrius , previously at rest , is readily borne onwards , and effects produced which , without ...
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Загальні терміни та фрази
accumulations acid action alumina amid animals appear ashes beach beds beneath blocks bottom breakers British Islands calcareous carbonate carbonic acid cavities cinders clay cliffs coal coast considerable considered coral reefs Cornwall crater crystals deposits depth detritus district dry land earthquake Edition effected elevated eruption estuary evidence exposed fathoms feet felspar fissures formed fragments geological glaciers granite ground hornblende igneous rocks inferred kind lakes lava lime limestone magnesia manner marine mass mechanical suspension Mendip Hills miles mineral matter mode of occurrence modifications molluscs molten mountain noticed observer occur ocean old red sandstone oolitic organic remains pebbles portions present produced Professor quartz red sandstone regards regions respect rise river sand sea-bottom section fig seen shells shores side silicates Silurian Sir James Ross sometimes species specific gravity streams substances sufficient surface temperature thrown tidal tide tion trachytic traversed various vegetable veins volcanic
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