BUZZ-Energy Resources of Australia sinks to all-time low
** Shares (Berlin: DI6.BE - news) of uranium producer Energy Resources of Australia (Other OTC: EGRAF - news) Ltd sink 48.3 pct to an all-time low
** Says Ranger 3 Deeps project will not proceed to Final Feasibility Study citing "current operating environment"
** Says uranium market has not improved as expected and there is uncertainty in the immediate future
** Energy Resources says it has engaged with major shareholder, Rio Tinto Ltd, regarding funding support for rehabilitation
** Rio Tinto (LSE: RIO.L - news) says does not support any further study or future development of Ranger 3 Deeps
** Rio Tinto says assessing potential non-cash impairment charge of about $300 mln relating to shareholding in company
** Rio Tinto fell as much as 1.3 pct after the announcement of potential impairment
** About 1.7 mln shares of Energy Resources change hands in early trading on Friday, compared with a 30-day average of 199,379 (Reuters Messaging: shashank.ks.thomsonreuters.com@reuters.net)