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II.—Contributions to the Study of Volcanos: Continued from page 16

Published online by Cambridge University Press:  01 May 2009

J. W. Judd
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Extract

3. Third Period of Volcanic Activity in the Lipari Islands.

Although, as we have already seen, the older volcanic formations of the Liparis present us with features of no little interest, yet it is on account of the cones and lava-streams, composed of rocks of singular beauty and almost unique character,—which are the product of the latest developments of igneous action in these islands, that the attention of geologists is most frequently directed to them.

Type
Original Articles
Information
Geological Magazine , Volume 2 , Issue 2 , February 1875 , pp. 56 - 70
Copyright
Copyright © Cambridge University Press 1875

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References

page 60 note 1 By a rock in a potentially liquefied state, I of course mean one which, either from its elevated temperature or its condition of internal tension from imprisoned volatile constituents, would assume a liquid form on being relieved from the pressure which maintains it in a solid state.

page 64 note 1 The exceedingly beautiful and clear obsidian of Lipari, like that of Mexico, has been employed by the ancient inhabitants of the island for cutting instruments and weapons.