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🌎 On the island of Surtsey near Iceland, land emerged almost overnight in 1963 after a volcanic eruption. Scientists use this brand-new island as a living laboratory to study how plants, animals, and microbes gradually colonize bare rock from scratch. ✨ #geology⚡#ecology⚡#volcanism 👉subscribe Interesting Planet

🌍 Earth’s magnetic field flips direction every few hundred thousand years, a process called geomagnetic reversal. These flips are recorded in volcanic rocks and help scientists trace ancient geologic changes. ✨ #geomagnetism⚡#volcanism⚡#cycles⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels ​