Photographer's Note

In connection with ochre here what one finds on the site of the town hall of Rustrel: Towards - 100 million years, an important upheaval occurs: Provence is out of water with a tropical climate with the pouring rain which deteriorates the emerged greensands, by transforming them into ochreous sands, then out of white sands with crystallization of other minerals (kaolinite and goethite). On the surface, the iron hydroxide concentrates (up to 70 %), similar to the African laterites - 1900: 10 building sites produce 20550 tons of ochre. - 1925: 22 building sites which occupy 84 workmen. - 1992: stop of the last building site in activity.

fireflyz, Tue oznaczył to zdjęcie jeko użyteczne

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Additional Photos by Jacques d'ABRIGEON (jafadabret) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6638 W: 709 N: 11871] (56501)
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