Pacific Ocean closed loop of the andesite line are most of the deep troughs, submerged volcanic mountains, and oceanic volcanic islands that characterize the Pacific basin. Here basaltic lavas gently flow out of rifts to build huge dome-shaped volcanic mountains whose eroded summits form island arcs, chains, and clusters. Outside the andesite line, volcanism is of the explosive type, and the Pacific Ring of Fire is the world's foremost belt of explosive volcanism. The Ring of Fire is named after the several hundred active volcanoes that sit above the various subduction zones. The Pacific Ocean is the only ocean which is almost
Ring of Fire (Northern Ontario) transportation corridor and processing facility in northern Ontario's Ring of Fire that would lead to a new generation of prosperity in the north, with thousands of jobs and new infrastructure". Natural Resources minister Michael Gravelle announced that the smelter would be in Sudbury, Ontario. On 26 April 2013, Tony Clement called the Ring of Fire the oil sands of Ontario. On 13 June 2013, Cliffs announced it would put its $3.3-billion project on hold pending results of negotiations between First Nations and Queen's Park. Clement said that the Ring of Fire would bring "about a hundred years of mining activity