A clear correlation exists in the southern Irish Variscides between extensional structures which controlled late Palaeozoic sedimentation in the Munster Basin, and contractional thrusts and folds of end-Carboniferous age. This correlation is interpreted to indicate that the extensional structural framework of the basin, including a basal low-angle detachment and an array of superjacent normal faults, was reused during transpressive inversion of the basin to produce the fold-thrust belt. The extensional framework, which in turn was to some extent derived by reactivation of Caledonian structures, therefore, exerted a fundamental control on the geometry and style of contractional deformation. It is not evident that the detachment had a discrete link to the fold belt in south Wales or the main Variscan orogen in Europe.

First Page Preview

First page PDF preview
You do not currently have access to this article.