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Migmatites, folds, variable rock
types
At location 8 the road to Héric
crosses the river and we are a little more than half way along our
journey. Just beyond this point the rock becomes variable with the
introduction of areas of high metamorphic grade anatectic migmatites
alternating with the gneisses. Sometimes the patches of each are
small and sometimes the two are mixed. Not too far away the rock
type changes yet again to rocks of lower grade such as the schists
of location 1 and even lower grade meta shales (location 9 and 10).
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View near the bridge
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| Rocks intermediate
between gneiss and migmatite with some disordering of the banding. |
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| The river bed at the location
of the large folds |
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