the.com/geology
the slow autobiography of a planet, written in stone and read by patient maniacs
deep timeEarth's history compressed: humans arrive in last seconds
oldest mineralAustralian zircon crystals are 4.4 billion years old
moving groundcontinents drift roughly as fast as fingernails grow
rock cyclemountains become sand become stone become mountains again
hammer taxgeologists lick rocks to identify them, seriously