Climate and Time in Their Geological Relations: A Theory of Secular Changes of the Earth's ClimateD. Appleton, 1875 - 577 páginas |
Dentro del libro
Resultados 1-5 de 88
Página 4
... seen to be necessarily connected with anything known to us ; we could not connect them with any rational principle from which they could be deduced à priori . The same remarks hold , of course , equally true of all sciences , in which ...
... seen to be necessarily connected with anything known to us ; we could not connect them with any rational principle from which they could be deduced à priori . The same remarks hold , of course , equally true of all sciences , in which ...
Página 6
... seen that . the geological agents are chiefly the ordinary climatic agents . 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 ...
... seen that . the geological agents are chiefly the ordinary climatic agents . 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 ...
Página 15
... seen that to such an extent is the temperature of the equatorial regions lowered , and that of high temperate , and polar regions raised , by means of ocean currents , that were they to cease , and each latitude to depend solely on the ...
... seen that to such an extent is the temperature of the equatorial regions lowered , and that of high temperate , and polar regions raised , by means of ocean currents , that were they to cease , and each latitude to depend solely on the ...
Página 22
... seen from Chapter XXII . that the mean thickness is far less than is generally supposed . The physical cause of the submergence of the land during the glacial epoch , and the influence of change in the obliquity of the ecliptic on ...
... seen from Chapter XXII . that the mean thickness is far less than is generally supposed . The physical cause of the submergence of the land during the glacial epoch , and the influence of change in the obliquity of the ecliptic on ...
Página 30
... seen , are ill- adapted for conveying heat . The surface of the ground at the equator becomes intensely heated by the sun's rays . This causes it to radiate its heat more rapidly into space than a surface of water heated under the same ...
... seen , are ill- adapted for conveying heat . The surface of the ground at the equator becomes intensely heated by the sun's rays . This causes it to radiate its heat more rapidly into space than a surface of water heated under the same ...
Otras ediciones - Ver todas
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...