Fig. 3: Representative deformation features of the Zanhuang fold nappe/thrust belt. | Nature Communications

Fig. 3: Representative deformation features of the Zanhuang fold nappe/thrust belt.

From: Alpine-style nappes thrust over ancient North China continental margin demonstrate large Archean horizontal plate motions

Fig. 3

a Roof and floor thrusts in a duplex structure, with incipient horses bounded by linked thrusts, and an incipient nappe climbing over the floor ramp; b small-scale nappes in recrystallized quartz-rich mylonites along the upper contact of the schistes lustrés, mimicking the larger-scale geometry of the belt; c sheath fold in marble, looking along hinge to the NW; d contact of the schistes lustrés (bottom of photo) marked by a recrystallized quartz-rich mylonite with asymmetric σ-shaped garnet porphyroblast (top to the SE sense of shear), above which is the tholeiite of the Buddha nappe; e photomicrograph of the schistes lustrés. showing asymmetric mica fish, top to the SE sense of shear; f photomicrograph of schistes lustrés, with S-C fabric defined by micas, showing top to SE sense of shear. bi biotite, chl chlorite, orth-amph orthoamphibole, pl plagioclase.

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