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 xiii
... Motion in Space . -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 ...
... Motion in Space . -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 ...
Página xv
... MOTION . Why the Question of Glacier - motion has been found to be so difficult.— The Regelation Theory . - It accounts for the Continuity of a Glacier , but not for its Motion . - Gravitation proved by Canon Moseley insuf- ficient to ...
... MOTION . Why the Question of Glacier - motion has been found to be so difficult.— The Regelation Theory . - It accounts for the Continuity of a Glacier , but not for its Motion . - Gravitation proved by Canon Moseley insuf- ficient to ...
Página xvi
... MOTION OF GLACIERS . - THE MOLECULAR THEORY . Present State of the Question . - Heat necessary to the Motion of a Glacier . -Ice does not shear in the Solid State . - Motion of a Glacier molecular . -How Heat is transmitted through Ice ...
... MOTION OF GLACIERS . - THE MOLECULAR THEORY . Present State of the Question . - Heat necessary to the Motion of a Glacier . -Ice does not shear in the Solid State . - Motion of a Glacier molecular . -How Heat is transmitted through Ice ...
Página 18
... motion . I have also shown in Chapter VIII . that all the facts which this theory is designed to explain are not only explained by the wind theory , but are deducible from it as necessary consequences . In Chapter XI . it is proved , by ...
... motion . I have also shown in Chapter VIII . that all the facts which this theory is designed to explain are not only explained by the wind theory , but are deducible from it as necessary consequences . In Chapter XI . it is proved , by ...
Página 22
... motion - a theory which I have been led to modify considerably on one particular point . There is one point to which I wish particularly to direct attention - viz . , that I have studiously avoided introducing into the theories ...
... motion - a theory which I have been led to modify considerably on one particular point . There is one point to which I wish particularly to direct attention - viz . , that I have studiously avoided introducing into the theories ...
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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...