Mehmet Dalman has resigned from the chairmanship of Eurasian Natural Resources Corp, further damaging the credibility of the embattled FTSE 100 miner, which has been hit by a string of employee exits and investor worries over its corporate governance http://link.ft.com/r/KC2844/SUC2NT/FXTSYF/8ZO8HV/1OQXV7/HK/h?a1=2013&a2=4&a3=23