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I.—The Ambrym Eruptions of 1913–141

Published online by Cambridge University Press:  01 May 2009

J. W. Gregory D. Sc., F.R.S.
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Extract

The rocks of the New Hebrides belong to at least four groups—two series of limestones and two series of volcanic rocks. The islands are sometimes referred to as if composed only of recent volcanic and coral formations. The existence of a series of old rocks has been believed from the records of gneiss on Espiritu Santo by Levat, and of ores of iron, copper, and nickel. The asserted presence of these materials suggested that the older rocks of New Caledonia form the foundation of the New Hebrides. The existence of the ores and gneiss is, however, discredited by Sir Douglas Mawson (1905, pp. 422, 434–5); he remarked that he had examined “small samples of copper, manganese, and other ores supposed to have been collected in the group” (Mawson, 1905, p. 435). He did not confirm this supposition, though admitting that traces of these metals might occur.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 12 , December 1917 , pp. 529 - 540
Copyright
Copyright © Cambridge University Press 1917

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