Ancient Underwater Volcanoes Discovered off Australia

A team of researchers aboard an ocean-going research vessel called RV Investigator has discovered a cluster of 50-million-year-old volcanoes off the coast of Sydney, Australia. The cluster of four extinct volcanoes is 12.4 miles (20 km) long and 3.7 miles (6 km) wide and the seafloor is 16,043 feet (4,890 m) deep, with the highest [...] —> Read More