Australia's Superior Resources hits 3-week high on copper, gold find
** Shares of Australia's Superior Resources SPQ.AX rise 20% to A$0.006, their highest level since August 20 ** Diversified miner says sampling results show "outstanding" grades of copper in its Greenvale project in Queensland ** Identifies gold and silver drilling targets at the site ** Around 13.9 mln shares traded so far, 7.3x 30-day average volume ** YTD, stock flat, including the session's gains (Reporting by Shruti Agarwal in Bengaluru) ((Shruti.Agarwal@thomsonreuters.com))