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 viii
... Result of an Increase of Eccentricity . - An important Consideration overlooked . - Change of Eccentricity affects ... resulting from Dif- ference of Temperature . - Difference of Specific Gravity resulting from Difference of Saltness ...
... Result of an Increase of Eccentricity . - An important Consideration overlooked . - Change of Eccentricity affects ... resulting from Dif- ference of Temperature . - Difference of Specific Gravity resulting from Difference of Saltness ...
Página 2
... result from a preponderance of one or more of these agencies over the rest . When heat , for example , predominates , we have a hot or tropical climate . When cold and frost pre- dominate , we have a rigorous or arctic climate . With ...
... result from a preponderance of one or more of these agencies over the rest . When heat , for example , predominates , we have a hot or tropical climate . When cold and frost pre- dominate , we have a rigorous or arctic climate . With ...
Página 10
... result . It was shown , however , by Laplace that the change of obliquity was confined within so narrow limits that it has scarcely ever been appealed to as a cause seriously affecting climate . The only remaining cause to which appeal ...
... result . It was shown , however , by Laplace that the change of obliquity was confined within so narrow limits that it has scarcely ever been appealed to as a cause seriously affecting climate . The only remaining cause to which appeal ...
Página 13
... result directly from an increase of eccentricity , it might never- theless do so indirectly . Although an increase of eccentricity could have no direct tendency to lower the temperature and cover our country with ice , yet it might ...
... result directly from an increase of eccentricity , it might never- theless do so indirectly . Although an increase of eccentricity could have no direct tendency to lower the temperature and cover our country with ice , yet it might ...
Página 14
... result from an increase of eccen- tricity , we shall find that a host of physical agencies are brought into ... results from this deflec- tion constitute not only the most important part of the subject , but the one beset with the ...
... result from an increase of eccen- tricity , we shall find that a host of physical agencies are brought into ... results from this deflec- tion constitute not only the most important part of the subject , but the one beset with the ...
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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...