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 ix
... Facts to be Explained . - The Explanation of the Facts.- The Explanation hypothetical . - The Cause assigned for the hypo- thetical Mode of Circulation . - Under Currents account for all the Facts better than the Gravitation Hypothesis ...
... Facts to be Explained . - The Explanation of the Facts.- The Explanation hypothetical . - The Cause assigned for the hypo- thetical Mode of Circulation . - Under Currents account for all the Facts better than the Gravitation Hypothesis ...
Página 2
... fact , it is these agencies which constitute climate . The various peculiarities or modifications of climate result from a preponderance of one or more of these agencies over the rest . When heat , for example , predominates , we have a ...
... fact , it is these agencies which constitute climate . The various peculiarities or modifications of climate result from a preponderance of one or more of these agencies over the rest . When heat , for example , predominates , we have a ...
Página 3
... fact more clearly brought out than another by the recent deep - sea explorations , it is this , that nothing exercises so much influence on organic life in the ocean as the temperature of the water . In fact , so much is this the case ...
... fact more clearly brought out than another by the recent deep - sea explorations , it is this , that nothing exercises so much influence on organic life in the ocean as the temperature of the water . In fact , so much is this the case ...
Página 5
... facts . But here confusion and misconception will arise unless there be distinct and definite ideas as to what ought to constitute a geological principle . It is not every statement or rule that may apply to a great many facts , which ...
... facts . But here confusion and misconception will arise unless there be distinct and definite ideas as to what ought to constitute a geological principle . It is not every statement or rule that may apply to a great many facts , which ...
Página 6
... facts which have been accumulating during the past century . The facts of geology are as essential to the establish- ment of the principles , as the facts of heat , light , and electricity are essential to the establishment of the ...
... facts which have been accumulating during the past century . The facts of geology are as essential to the establish- ment of the principles , as the facts of heat , light , and electricity are essential to the establishment of 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...