TORONTO, Sept 13 (Reuters) - Canada's benchmark equity index closed more than 1 percent higher on Thursday as mining and energy companies jumped after the U.S. Federal Reserve said it would buy more bonds until the jobs outlook rebounds for Canada's main trading partner. The Toronto Stock Exchange's S&P/TSX composite index unofficially closed up 127.54 points, or 1.04 percent, at 12,360.16.