Blog: Carry-on-my-wayward-blog
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original: https://they-grew-up-heroess.tumblr.com/post/62296552342
marisaisfangirlin: So, today in my geology class we discussed the Greek island of Santorini. All that water in the middle there? That’s actually a caldera formed after a giant volcano erupted. The land there collapsed and the lagoon in the middle