Author:
Leake Bernard E.,Tanner P. W. Geoff,Macintyre R. M.,Elias E.
Abstract
ABSTRACTThe Dalradian terrane of Connemara was thrust southsoutheastwards about 460 Ma ago (Rb–Sr and K–Ar ages). It rides on a major thrust of post-D age over mylonitised acidic volcanic rocks of putative lower Ordovician age and contains a number of thrusts of similar age. Several major S- to SE-directed thrusts also limit the southeastern margin of the Dalradian rocks in Mayo and Tyrone. It is suggested by analogy with Ireland that during mid-Ordovician times the Highland Boundary fault in Scotland could have been a thrust zone which carried the Scottish Dalradian rocks over a lower Ordovician basement now represented only as fragments in the Highland Border Complex.
Publisher
Cambridge University Press (CUP)
Subject
Paleontology,Earth and Planetary Sciences (miscellaneous)
Reference37 articles.
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2. Zircon U-Pb ages from the Galway granite and the Dalradian, Connemara, Ireland
3. Major southward thrusting of the Dalradian rocks of Connemara, western Ireland
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