Peralkaline rhyolites from the ordovician tweeddale lavas, peeblesshire, scotland
- 1 January 1981
- journal article
- research article
- Published by Wiley in Geological Journal
- Vol. 16 (1) , 41-44
- https://doi.org/10.1002/gj.3350160104
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.Keywords
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