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I.—On the Sands and Gravels Intercalated in the Boulder-clay

Published online by Cambridge University Press:  01 May 2009

G. W. Bulman
Affiliation:
Corbridge-on-Tyne.

Extract

The interpretation of the sands and gravels intercalated in the glacial drift is one of the most interesting problems in glacial geology. Do they, on the one hand, represent the deposits of one or more mild intervals alternating with periods of intense cold; or were they, on the other, laid down during one continuous cold period marked by such slight oscillations as can be shown to occur in connection with existing glaciers and ice-sheets?

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1891

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