Rock of ages: How chalk made England

asteroid
2021-02-27T16:03:59Z

Link URL: https://www.theguardian.com/news/2021/feb/23/rock-of-ages-how-chalk-made-england-geology-white-cliffs

Comments URL: https://tildes.net/~science/ves/rock_of_ages_how_chalk_made_england

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