Architecture of gold mineralization at Anomaly A of the Clarence Stream deposits, southern New Brunswick

Anomaly A of the Clarence Stream gold deposits contains mineralized structures that bear geometrical relationships to regional folding events. Structural mapping at the regional scale reflects at least four deformational events, three of which appear to control the folded geometry of Anomaly A (D2, D3, and D4). F2 and F3 folds are in a coaxial relationship and are refolded into a dome and basin geometry by F4 folds. Structural analysis of a mineralization zone exposed at the surface indicates that gold mineralization is present within a quartz vein system that contains veins generated during both D2 and D3. Three-dimensional representation of Anomaly A created using drill-core data and gOcad suggests that the quartz vein system was emplaced in fault structures generated during D2 and formed in brecciated dilation zones during D3. Three of the four zones that make up Anomaly A have F2 hinge surfaces that can be linked in a fashion compatible with the style of F3 and F4 folds. The apparent continuity of these three zones indicates the potential for km-scale mineralized structures at Anomaly A.