Climate and Time in Their Geological Relations: A Theory of Secular Changes of the Earth's ClimateD. Appleton, 1875 - 577 páginas |
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Página 6
... Consequently , the main principles of geology must be the laws of the climatic agents , or some logical deductions from them . It therefore follows that , in order to a purely scientific geology , the grand problem must be one of ...
... Consequently , the main principles of geology must be the laws of the climatic agents , or some logical deductions from them . It therefore follows that , in order to a purely scientific geology , the grand problem must be one of ...
Página 8
... Consequently , if our solar system had ever , during any former period of its history , really come into the vicinity of such a mass , the orbits of the planets ought at the present day to afford some evidence of it . But again , in ...
... Consequently , if our solar system had ever , during any former period of its history , really come into the vicinity of such a mass , the orbits of the planets ought at the present day to afford some evidence of it . But again , in ...
Página 17
... consequently blow across the equator to some distance on the southern hemisphere . This state of things will tend to deflect equatorial currents southwards , impelling the warm water of the equatorial regions more into the southern or ...
... consequently blow across the equator to some distance on the southern hemisphere . This state of things will tend to deflect equatorial currents southwards , impelling the warm water of the equatorial regions more into the southern or ...
Página 25
... consequently it loses 25 ° of heat . Each cubic foot of water , therefore , in this case carries from the tropics for distribution upwards of 1,158,000 foot - pounds of heat . According to the above estimate of the size and velocity of ...
... consequently it loses 25 ° of heat . Each cubic foot of water , therefore , in this case carries from the tropics for distribution upwards of 1,158,000 foot - pounds of heat . According to the above estimate of the size and velocity of ...
Página 26
... consequently the quantity of heat conveyed by the Gulf - stream in one year is * Trans . of Roy . Soc . of Edin . , vol . xxi . , p . 57. Phil . Mag . , § 4 , vol . ix . , p . 36 . " Smithsonian Contributions to Knowledge , " vol . ix ...
... consequently the quantity of heat conveyed by the Gulf - stream in one year is * Trans . of Roy . Soc . of Edin . , vol . xxi . , p . 57. Phil . Mag . , § 4 , vol . ix . , p . 36 . " Smithsonian Contributions to Knowledge , " vol . ix ...
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Términos y frases comunes
amount of heat antarctic aphelion arctic regions Atlantic beds bottom boulder clay Caithness Carboniferous cause centre of gravity channel coal cold periods condition of climate consequently considerable denudation deposits depth descend earth's orbit eccentricity ecliptic effect Eocene equator evidence existence extent fact feet flow foot-pounds force Geikie Geol geological geologists glacial epoch glacier globe Grangemouth gravel greater Greenland Gulf-stream heat received ice-cap icebergs inter-glacial periods island James Geikie Kilsyth land land-ice latitude lower mass mean melting miles Miocene molecules motion North North Sea northern obliquity ocean ocean-currents perihelion polar column polar regions poles present probably produce Professor quantity of heat radiation regarding result river rocks sand says Scotland sea-bottom sea-level shear Sir Charles Lyell slope snow southern hemisphere specific gravity stones stratified stream striated submergence summer sun's supposed surface theory thickness tion valley warm periods winter
Pasajes populares
Página 331 - ... been removed from the general surface in one year ; and there seems no danger of our overrating the mean rate of waste by selecting the Mississippi as our example, for that river drains a country equal to more than half the continent of Europe, extends through twenty degrees of latitude, and therefore through regions enjoying a great variety of climate, and some of its tributaries descend from mountains of great height. The Mississippi is also more likely to afford us a fair test of ordinary...
Página 535 - Now, the perihelion of the orbit is situated nearly at the place of the northern winter solstice ; so that, were it not for the compensation we have just described, the effect would be to exaggerate the difference of summer and winter in the southern hemisphere, and to moderate it in the northern ; thus producing a more violent alternation of climate in the one hemisphere, and an approach to perpetual spring in the other. As it is, however, no such inequality subsists, but an equal and impartial...