Abstract
In the Hercynian Fold Belt of South Ireland, near the town of Ardmore, County Waterford, units of openly folded Upper Palaeozoic sandstone and siltstone are traversed by closely spaced arrays of en échelon quartz veins. These arrays mark the sites of shear zones which are bounded by weakly deformed wall rocks. We used the attitude of cleavage and the sigmoidal shapes of veins to calculate the cumulative shear strain across each zone, and then determined the bulk deformation suffered by the outcrop by tensor analysis, with the aid of an off-axis Mohr circle construction. We conclude that, as a consequence of vein formation, the rocks at this outcrop suffered significant bulk deformation with an 8–14° clockwise rotation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
