Fig. 7

Overview of the axial traces of Alpine fold structures in the Lepontine gneiss dome (extracted from Fig. 2). Note that only a selection of axial traces of the F2–F3 recumbent folds are represented on this figure. The cross-sections on Fig. 3 give more complete information on these phases of folding. Anticline is named on Figs. 2 and 7 an upward closing fold and syncline is named a downward closing fold at the moment of their formation. A synformal anticline is an over turned anticline and an antiformal syncline an over turned syncline. The stratigraphic age relationships can only be used for the definition of anticlines and synclines in the case of F1–F3 folds that deform the Paleozoic basement-Mesozoic sedimentary cover contacts