Petrotectonic environments of the Girvan-Ballantrae lavas from rare-earth element distributions
- 1 September 1977
- journal article
- Published by Geological Society of London in Scottish Journal of Geology
- Vol. 13 (3) , 211-222
- https://doi.org/10.1144/sjg13030211
Abstract
Synopsis: Rare-earth element abundances and distribution patterns in Arenig tholeiitic pillow lavas from the Girvan-Ballantrae ophiolitic complex, Ayrshire, are similar to those of mid-ocean ridges and island arcs. Rare-earth evidence alone does not distinguish between these two possibilities, but the thickness of the Arenig lavas is much greater than that of typical mid-ocean ridges and more comparable with island arc series. The absence of a sheeted dyke complex also supports this conclusion. The Caradocian pillow lavas have rare-earth element patterns resembling oceanic island (Hawaiian-type) tholeiites while others have more strongly enhanced light rare-earth abundances typical of continental tholeiites.This publication has 26 references indexed in Scilit:
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