A massive plume of molten rock, hidden deep beneath the Appalachian Mountains, is on the move—and its slow journey is aimed at New York City.
Scientists say this underground feature, known as the Northern Appalachian Anomaly (NAA), may have played a role in a major continental breakup 80 million years ago and continues to drift through Earth’s mantle to this day.
Though its center won’t pa... [3954 chars]