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Fig. 5 | Swiss Journal of Geosciences

Fig. 5

From: The role of the antigorite + brucite to olivine reaction in subducted serpentinites (Zermatt, Switzerland)

Fig. 5

a Country rock sample FA (Fig. 2 for position) with grey-white olivine, black magnetite veinlets and cross-cutting antigorite and calcite veins (Euro coin 2.3 cm diameter). b Backscatter image of a large olivine1 enclosing the magnetite mesh texture. Small idioblastic olivines form the mosaic texture with antigorite. Note the partial or full disappearance of magnetite veins and mesh polygons in this domain (sample MF). c Thin section image (plain polarized light) of olivine1- and recrystallized olivine2 domains, note the absence of magnetite veins and mesh textures in domain2 (sample FA). d Plain polarised light image from a dark stripe consisting of large inclusion-rich olivine1 with magnetite polygons and idioblastic olivine2 forming a mosaic texture with antigorite (sample MF). e Crossed polarised light image of a green stripe (a) consisting of interlocked antigorite and relic chromites (sample MF)

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