SPA on Nostr: Please don't waste time on that. This is so obviously geological. > Devils tower is ...
Please don't waste time on that. This is so obviously geological.
> Devils tower is composed of igneous rock, specifically a phonolite porphyry, which was intruded about 40.5 million years ago. As the magma cooled, it formed hexagonal columns, some up to 20 feet wide and 600 feet tall.
Published at
2025-01-31 13:13:01Event JSON
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