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VI.—Note on a Pillow-Lava Apparently Forming a Continuous Horizon From Mullion Island to Gorran Haven in Cornwall

Published online by Cambridge University Press:  01 May 2009

G. T. Prior
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Extract

The basalt of Mullion Island, with the intercalated radiolarian chert, is well known from the descriptions of Teall and Howard Fox.1 It is a fine-grained minutely vesicular basalt, consisting mainly of radiating felspar laths and interstitial pale purplish-brown augite, and occurring in peculiar pillowy or bale-like masses. Owing to this curious structure and its intercalation with the chert the basalt is considered to be a submarine lava.

Type
Original Articles
Information
Geological Magazine , Volume 1 , Issue 9 , September 1904 , pp. 447 - 449
Copyright
Copyright © Cambridge University Press 1904

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References

1 Quart, Journ. Geol. Soc, vol. xlix (1893), p. 211.Google Scholar

2 Trans. Roy. Geol. Soc. Cornwall, xii (1), 1896, p. 39.