大象传媒

Archaeologists working in Orchard, Nebraska, found hundreds of fossilised prehistoric animals that were killed by ash from a volcanic eruption. When they traced the source of the ash, they discovered that it was a supervolcano 1,600km away in Bruneau Jarbridge, Idaho. The hotspot that powered the Bruneau Jarbridge eruption 12-10.5 million years ago caused a trail of prehistoric super-eruptions as the North American plate moved over it.