Tag: Geologic

Well, this is my first Medium article. I must say, Medium, kudos to you: this site’s really well-made. Anyway, time to talk about the geologic time scale. One day, I decided to memorize Earth’s milestones. Don’t ask me why, I did it on a whim that may or may not have been relate...

I wanted to talk about the chevron folds at Hartland Quay in north Devon. They’re some of the best known in the world. The beds themselves were formed as part of the Crackington Formation during the mid to late Carboniferous (~325 Mya) and exhibit alternating sandstone and siltstone layers,...