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 v
... All the conclusions are based either on known facts or admitted physical principles . In short , the aim of the work , as will be shown in the introductory chapter , is to prove that secular changes of climate follow , as a.
... All the conclusions are based either on known facts or admitted physical principles . In short , the aim of the work , as will be shown in the introductory chapter , is to prove that secular changes of climate follow , as a.
Página vii
... . -An important Consideration overlooked . - Without Ocean - currents the Globe would not be habitable . - Conclusions not affected by Imper- fection of Data 45 CHAPTER IV . OUTLINE OF THE PHYSICAL AGENCIES WHICH LEAD.
... . -An important Consideration overlooked . - Without Ocean - currents the Globe would not be habitable . - Conclusions not affected by Imper- fection of Data 45 CHAPTER IV . OUTLINE OF THE PHYSICAL AGENCIES WHICH LEAD.
Página xi
... the Tertiary Period was supposed to be warmer than the present . - Mr . James Geikie on the Defects of Palæontological Evidence . - Conclusion • 266 CHAPTER XVIII . ' FORMER GLACIAL EPOCHS ; GEOLOGICAL EVIDENCE CONTENTS . xi.
... the Tertiary Period was supposed to be warmer than the present . - Mr . James Geikie on the Defects of Palæontological Evidence . - Conclusion • 266 CHAPTER XVIII . ' FORMER GLACIAL EPOCHS ; GEOLOGICAL EVIDENCE CONTENTS . xi.
Página xiii
... Conclusion as to Date of Glacial Epoch . - False Analogy . - Probable Date of Eocene and Miocene Periods PAGE 346 CHAPTER XXII . A METHOD OF DETERMINING THE MEAN THICKNESS OF THE SEDIMENTARY ROCKS OF THE GLOBE . Prevailing Methods ...
... Conclusion as to Date of Glacial Epoch . - False Analogy . - Probable Date of Eocene and Miocene Periods PAGE 346 CHAPTER XXII . A METHOD OF DETERMINING THE MEAN THICKNESS OF THE SEDIMENTARY ROCKS OF THE GLOBE . Prevailing Methods ...
Página 11
... conclusions arrived at by Lagrange regarding the superior limit of the eccentricity of the earth's orbit ; but he came to the conclusion that possibly the climate of our globe may have been affected by variations in the eccentricity of ...
... conclusions arrived at by Lagrange regarding the superior limit of the eccentricity of the earth's orbit ; but he came to the conclusion that possibly the climate of our globe may have been affected by variations in the eccentricity of ...
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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...