Australian miners track metal prices higher
** Australia's mining sub-index .AXMM rise as much as 1.9%, its highest level since October 14
** Sub-index set to log its second consecutive session of gains, if trend holds
** Copper prices rose on Monday as risk sentiment improved MET/L
** Shares of mining heavyweights Rio Tinto RIO.AX, BHP BHP.AX and Fortescue FMG.AX rise between 1.2% and 1.7%
** Sub-index has risen 10.8% YTD, including session moves