Cyclicity of folding in the Monashee complex of the Canadian Cordillera

摘要

during horizontal non-coaxial flow in the Cordilleran infrastructure. Located at 50° 46'33° 87'N; 118° 14'35° 91'W. The isoclines represent early upright structures that may have been inherited from a pre-infrastructure deformation or developed as dragfolds in the regionally horizontal infrastructure fabric (St). They were tightened and rotated by the non-coaxial flow until the folds were recumbent and isoclinal, and layering was everywhere parallel and horizontal except in the sparse fold hinges. The asymmetrical Z-fold is a younger dragfold that perturbed S_T once more, but formed sufficiently late in the flow history not to have been completely rotated into a recumbent isocline with its axial surface parallel to the horizontal S_T. Hammer handle is approximately 60 cm long.