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VI.—On a Method of Splitting Ironstone Nodules by means of an Artificial Freezing Mixture

Published online by Cambridge University Press:  01 May 2009

L. Moysey
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Extract

Most geologists who have had anything to do with the ironstone nodules in the Coal-measures have been struck by their perverse and refractory behaviour under the hammer. How one nodule will refuse to break under the most well-directed blows, and another, though breaking easily, will exhibit to the disappointed collector a clean bright surface of clay-ironstone, without a trace of that organism that he hoped, and almost had a right to expect, was there. It seems therefore necessary to find some other and perhaps less violent method of breaking them.

Type
Original Articles
Information
Geological Magazine , Volume 5 , Issue 5 , May 1908 , pp. 220 - 222
Copyright
Copyright © Cambridge University Press 1908

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References

1 This refers to the Report made by Mr. Hudleston to the Town Council of Wareham as to the advisability of continuing the boring. In this Report the particulars of the work already executed are given in a tabular form together with an approximate estimate of the probable thickness of the remaining Tertiaries ere the Chalk was reached. The total thickness of the beds above the Chalk on Worgret Hill was finally estimated at 425 feet.