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Fig. 7 | Swiss Journal of Geosciences

Fig. 7

From: The Theodul Glacier Unit, a slab of pre-Alpine rocks in the Alpine meta-ophiolite of Zermatt-Saas, Western Alps

Fig. 7

Cathodoluminescence (CL) images of zircon from eclogite SW9. a Short prism with straight regular zoning, surrounded by a thin rim of CL-bright zircon, the same material also coating fractures at the interior of the grain. b Mosaic textured zircon. c A CL-dark internal domain with regular zoning but also recrystallized CL-bright domains is surrounded by a CL-bright outer zone showing a very faint regular growth zoning. d Complex chaotic texture with a CL-dark internal domain surrounded by CL-bright rim and cut by similar veins, all parts of the grains suggesting extensive metamorphic recrystallization

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