The establishment of recumbent folds in the Lower Palaeozoic near Queanbeyan, New South Wales

Lower Palaeozoic sedimentary and volcanic rocks east of Queanbeyan, N.S.W., have undergone multiple deformation resulting in four systems of folds. The first of these consists of large isoclinal, recumbent folds (F1). The second generation folds (F2) are the most pronounced; they consist of flattened flexural-slip folds with well developed axial-plane slaty cleavage. Minor variants of this system are associated with meridionally-trending faults. Third and fourth generation folds are minor kink systems.The existence of first generation folds was established on the basis of F2 fold-facing determinations, and their likely form was deduced from the geometrical variations of F2 folds. It is thought that all fold phases developed during the Late Silurian Bowning Orogeny.