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 4
... things to be considered stand in the relationship of cause and effect . Geology is no exception . It is not like systematic botany , a mere science of classification . It has to explain and account for effects produced ; and these ...
... things to be considered stand in the relationship of cause and effect . Geology is no exception . It is not like systematic botany , a mere science of classification . It has to explain and account for effects produced ; and these ...
Página 6
... things to be explained are effects ; and the relationship between cause and effect affords the subjective connection between the principle and the explanation . The explanation follows from the principle simply as the effect results ...
... things to be explained are effects ; and the relationship between cause and effect affords the subjective connection between the principle and the explanation . The explanation follows from the principle simply as the effect results ...
Página 14
... things , have been known previously to recent discoveries in the science of heat . The consideration and discussion of those various physical agencies are the chief aim of the following pages . Abstract of the Line of Argument pursued ...
... things , have been known previously to recent discoveries in the science of heat . The consideration and discussion of those various physical agencies are the chief aim of the following pages . Abstract of the Line of Argument pursued ...
Página 17
... things will tend to deflect equatorial currents southwards , impelling the warm water of the equatorial regions more into the southern or warm hemisphere than into the northern or cold hemisphere . The tendency of all this will be to ...
... things will tend to deflect equatorial currents southwards , impelling the warm water of the equatorial regions more into the southern or warm hemisphere than into the northern or cold hemisphere . The tendency of all this will be to ...
Página 18
... thing , but regard ocean currents as of secondary importance . It may be stated that the existence of this general ocean circulation has never been detected by actual observation . It is simply assumed in order to account for certain ...
... thing , but regard ocean currents as of secondary importance . It may be stated that the existence of this general ocean circulation has never been detected by actual observation . It is simply assumed in order to account for certain ...
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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
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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...