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Peralkaline rhyolites from the ordovician tweeddale lavas, peeblesshire, scotland

✍ Scribed by M. F. Thirlwall

Book ID: 102221787
Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 255 KB
Volume: 16
Category: Article
ISSN: 0072-1050
DOI: 10.1002/gj.3350160104

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✦ Synopsis

Abstract

The riebeckite‐bearing rhyolite of Winkston Hill, Peebles, is shown to be peralkaline and may be named a pantellerite. Trace element comparison with other more altered members of the Tweeddale lavas from Wrae Hill suggests that the whole suite is peralkaline. It is thought most unlikely that the suite was developed in association with an Upper Ordovician subduction zone, and it was perhaps erupted on an oceanic island.

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