Some unknown traces of a major eruption of Hecates Tholus less than 350,000 million years ago were found . In a depression on the volcano, researchers found glacial deposits estimated to be 5 to 24 million years old.
Some unknown traces of a major eruption of Hecates Tholus less than 350,000 million years ago were found . In a depression on the volcano, researchers found glacial deposits estimated to be 5 to 24 million years old.