Table of contents A version of this story appeared in Science, Vol 393, Issue 6806.Download PDF 1.0x 00:00 04:51 1.0x Audio is AI-generated. Report an issue|Give feedback When Antarctica split from Africa during the breakup of the Gondwana supercontinent 160 million years ago, the rift did more than separate continents. According to a study published today in Science, it may have also triggered slow-motion upheaval in the planet’s interior that eventually raised mountains in East Antarctica.