Photographs showing structures within mylonitic zones associated with uranium deposits in the Wollaston-Mudjatik Zone (eastern Athabaska area). (a) Steep mylonitic foliation with high-grade metasediments reworked by steeply dipping mineralised faults (carbonate-sulfides bearing mineralisation). (b) Field aspect of the regional fabric marked by steeply dipping foliations bearing substantially plunging stretching lineations (here in a Paleoproterozoic meta-conglomerate).