Le 29 décembre 2024
Seconde et dernière journée passée dans le Sinaï, cette fois axée sur la découverte de quelques canyons creusés dans l’étage gréseux de ce désert à la géologie sédimentaire. Des canyons peu profonds comme dans le plateau du Colorado, par contre beaucoup plus courts que dans ce dernier, et ponctuellement aussi étroits que leurs homologues américains, ce qui leur apporte l’ambiance et la lumière exceptionnelle des "slot canyons". Des trois canyons parcourus ce jour c’est donc celui d’Arada (appelé aussi double canyon car la montée se fait habituellement par un canyon différent de celui emprunté pour la descente) qui marquera le plus les esprits et les yeux, avec son superbe encaissement malheureusement trop court. On profite en tout cas durant une grosse centaine de mètres des jeux de lumières et des 50 nuances d’ocre, de jaune et d’orange du grès poli et sculpté par les crues, un spectacle renouvelé à chaque courbe du canyon, des "slot canyons" qui figurent en bonne place avec les glaciers de sel parmi mes curiosités géologiques préférées pour leur esthétisme !
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zig zag canyon
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la branche montante du Wadi Arada, ambiance plateau du Colorado
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faille de grès au-dessus du plateau sommital, bref encaissement malheureusement
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le splendide canyon Arada et ses jeux de lumières dignes de l'Utah
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transition entre les canyons, détails du grès, inscriptions nabatéennes et glisse
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canyon rouge non référencé un peu plus au sud
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