** Shares of Australia's Genesis Minerals GMD.AX rise as much as 8.6% to A$7.47, their biggest intraday pct gain in four months
** Gold explorer GMD says it will acquire gold developer, Magnetic Resources MAU.AX for implied equity value of about A$639 million ($452.80 million)
** GMD says it will offer MAU shareholders A$1.40 per share and 0.0873 GMD for each MAU share, implying value of A$2.00 per MAU share and 25% premium as of MAU's last close
** GMD says MAU Board unanimously recommends MAU shareholders vote in favour of the scheme
** MAU up 27.8% to A$2.045, touching its record highest level
** MAU stock marks biggest intraday pct gain in 7 years
** GMD up 2.4% YTD, MAU up 56% YTD
($1 = 1.4112 Australian dollars)
(Reporting by Aamir Sheik Khalid in Bengaluru)
((Aamir.SheikKhalid@thomsonreuters.com))