Fig. 9

Upper contact of the Série Rousse with the ophiolite-bearing Série Grise and the Frilihorn slices. a Tectonized Frilihorn carbonates (partly dolomitic) marking the contact between the Série Rousse and the Série Grise; La Sage [2′606′330/1′105′640], Hérens valley. b Frilihorn dolomitic boudins along the same contact; Plan Tsardon [2′603′400/1′105′470], Hérens valley. c Thin Frilihorn tectonized and folded bands (polyphase folding of a single band); Meina pass area [2′599′360/1′104′680], Hérens valley. d Sharp contact between Frilihorn dolomites and Série Grise metabasites; the Série Rousse is outcropping a few meters below; Palantse de la Cretta west face [2′600′990/1′104′380], Hérens valley. e Strongly sheared Série Rousse calcschists, 3 m below its upper contact with the Série Grise; the outcrop is parallel to the marked stretching lineation; asymmetric folds and C’ structures indicate a top to the NW shear-sense; S: schistosity; C’: extensional shear bands; Mel de la Niva [2′601′850/1′105′750], Hérens valley