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> -----Original Message----- > From: mining-history [mailto:[log in to unmask]] > On Behalf Of Alan Johnson > Sent: Friday, October 17, 2008 11:39 AM > To: [log in to unmask] > Subject: Re: Henderson Process > the remainder is used to backfill exhausted mine workings or > dumped above ground on spoil tips. Sorry, this 'remainder' is the Abraumsalz. Regards -- Alan Johnson, Geotr@ns www.geotrans-online.de German->English, Geoscience/Technical http://geotransblog.blogspot.com/ Terminus Est