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IV.—On a Method of Determining a Lower Limit to the Age of the Stratified Rocks

Published online by Cambridge University Press:  01 May 2009

Charles Davison
Charles Davison
Affiliation:
Mathematical Master at King Edward's High School, Birmingham.
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Extract

The following is an attempt to determine a lower limit to the time required for the accumulation of the stratified rocks. It is not supposed to be an accurate estimate, for the data on which it is based are confessedly imperfect; but it is thought that the method employed may be of some little use when more exact determinations can be made of the physical constants involved.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 8 , August 1887 , pp. 348 - 351
Copyright
Copyright © Cambridge University Press 1887

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References

page 348 note 1 The rate of subsidence at any time is here measured with respect to the level of the sea at that time.

page 349 note 1 Text-book of Geology, pp. 389, 444.Google Scholar

page 350 note 1 “On the Distribution of Strain in the Earth's Crust, resulting from Secular Cooling; with special reference to the Growth of Continents and the Formation of Mountain Chains,” read May 5, 1887.

page 351 note 1 Dr. Croll has very clearly shown that there may he a considerable difference between the maximum and average thicknesses of a formation; but it will be remembered that he calculated the average over a belt 100 miles broad round the whole coast-line.—GEOL. MAG. 1871, Vol. VIII. p. 101.Google Scholar