Ninetyeast Ridge:
A recent Nature Communications study reveals that the Ninetyeast Ridge, the Earth’s longest straight underwater mountain chain, was formed by a moving hotspot, challenging the earlier belief that it originated from a stationary hotspot.This study provides new insights into Earth’s tectonic processes, and age estimates of Ninetyeast Ridge.The Ninetyeast Ridge, a 5,000 km-long underwater mountain chain in the Indian Ocean, was formed by the Kerguelen hotspot(volcanic hotspot located at the Kerguelen Plateau in the Southern Indian Ocean), which moved several hundred kilometers within the Earth’s mantle, rather than being formed by a stationary hotspot as previously believed.