17 February 2017

Friday fold: Buckled at Baltinglass

Posted by Callan Bentley

Garnetiferous beds from the aureole of the Leinster Granite east of Baltinglass, County Wicklow, Ireland (Declan De Paor’s senior thesis mapping area, 1973). Manganese-rich metasediments. The prominent ‘elasticas’ or fan folds (folds with a negative inter-limb angle) are superimposed on isoclinal folds: so the brownish layer at top and bottom are the same, though that is not obvious from the image. This is a sample from the structural geology collection of Declan De Paor and Carol Simpson.

Take a look at the whole sample in this GigaPan. If you don’t have Flash enabled on your computer, you’ll have to click through to explore it:
Link 0.58 Gpx GIGAmacro by Callan Bentley