Left our campervan at 9.00 and walked up to the road to await the vans. Today we were heading North to the Ecrins National Park. We even took the peage today. Our guides had previously staged clear of it. Stopped at the final peage for a loo break. Then another drive into the mountains.
First, we stopped near to Pouillardencq on the D57 where we photographed the distant mountains. Back in the van for a few miles.
We stopped along the D985A near to Saint-Firmin and donned our Gillet Jaunes to view exposed outcrops of rock. One French driver asked us what the demonstration was about! We were able to see dykes. I think it’s amazing to think this area was under the sea, R not so amazed. These Dolerites were fine-grained and made up of hundreds of sheets with thicknesses from 50cm to two meters. Doleritic rocks of this grain size are constructed from numerous small dykes in the Oceanic crust.
We moved off to a river for lunch and then examined the metamorphosed granites. I built a rock pile, which was knocked down by Donny, our geology expert. It was built on one of his prized exhibits, an Augen Gneiss. Augen, from the German meaning eyes, is a coarse-grained gneiss resulting from metamorphism of granite, which contains characteristic elliptic or lenticular shear-bound feldspar porphyroblasts, normally microcline, within the layering of the quartz, biotite and magnetite bands.
We revisited the road stopping place once more for some more viewing. Managed to spot a small wasps nest.
It was back to Wiz for supper where we had a Pastis tasting evening. As the evening came to an end, a storm approached. Lovely displays of lightning and thunder. We were back in the van before the rain came, though we were met by the rain on the trip back from the loo.