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Rock duo

1 March 2022

Cross bedding observed in Triassic sandstone, Evangeline Beach, Nova Scotia, Earth 2014 (bottom image) and the Yellowknife Bay Formation, Gale Crater, Mars 2012 (top image)

Dear Editors,
The winter 2021 edition of Geoscientist was very enlightening. The feature article ‘Spacescapes: Postcards from our solar system’ prompts me to share this ‘rock duo’ taken in Maritime Canada, Earth, and the Gale Crater, Mars.

Michael Clutson, a retired petroleum geologist with experience working on several continents

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