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. After-malo, The Mont Albert ophiolitic complex is indicated by the central rectangle. (b) Simplified geological map of the Mont Albert area (after MacGregor and Basu, Geological maps of the Mont Albert ophiolitic complex and sample location. (a), vol.2, 1979.

, Sampling of the metamorphic sole was focused on the shore of the Cascapedia River. SSF: South Schick-Schock Fault

, Foliation is subparallel to the intrusion. (i) Garnet-bearing metapelites along the 'Marches du Géant' normal fault system, ? 40 m away from the contact with the peridotite (near sample MA-14-50, Fig. 2b, 6a). (j), (k) and (l) are typical outcrops of the low-grade amphibolite. Deformation is highlighted by quartz-albiteepidote assemblages found in shear zones, as layers, veinlets and around deformed pillows (highlighted in k). (j): west of summit of Mont Albert, near sample MA-14-19 (Fig. 2b and 5c). (k): south of Mont Albert (near sample MA-14-46, Fig. 2b). (l) south-west of, The contact is partly hidden by vegetation and grey boulders (dotted line). (c) Typical aspect of the peridotite away from the contact. (d) Serpentinite unit at the base of the peridotite, with oxide-rich layers

, Selected thin section microphotographs of the low-grade amphibolite. (a) Plagioclaseepidote amphibolite where amphibole shows pale green cores and darker blue-green rims. (b) Incipient crenulation cleavage in schistose amphibolite, as typically found along the Cascapedia river, Figure, vol.5

M. From, (b) Pressure-temperature evolution of the high-grade unit, with four steps constraining the temperature evolution close to the interface, as schematized in (c), where the plate boundary is sketched in black and isotherms are shown for step 1 (t1, Calcite-epidote filled spherulites in amphibolite, with quartz and albite. Foliation is horizontal. 1096 1097 1098 1099 1100 lithosphere as a function of age, 2005.