Drilling Report

14 Jun 2005 07:00

Tertiary Minerals PLC14 June 2005 www.tertiaryminerals.com TERTIARY STARTS DRILLING AT ITS MAIN NICKEL PROJECT AT NOTTRASK IN SWEDEN • Central Zone Highlighted By World Expert On Nickel Sulphide Mineralisation • Multiple Massive Sulphide Targets Confirmed By Detailed Ground Geophysics • Five Diamond Drill-Holes Planned As Initial Test Of Priority Anomalies Tertiary Minerals plc, ("Tertiary" or "the Company") announces drilling that hasstarted at Nottrask, the Company's main nickel prospect in Sweden. The programmewill test multiple targets for nickel-copper massive sulphides identified bygeophysical surveys. On April 13 the Company announced results from a large loop semi-regionaltransient electromagnetic (TEM) survey across the Central Zone of the Nottraskmafic intrusive that identified a total of nine, closely spaced, near-surfaceconductors and one deeper conductor, interpreted to indicate massive-sulphidemineralisation. Drill testing was put on hold awaiting the Spring thaw. A detailed follow-up Slingram electromagnetic survey has just been completed andconfirms conductors with individual thickness up to 60m, possibly comprisingmultiple stacked massive sulphide lenses. The drill targets are on threedistinct horizons within a strike length of 750m. Drilling of up to five holes is planned as an initial test of the conductors andis scheduled for completion in July with assay results following a month later.Tertiary and its consultant Anthony Naldrett (Emeritus Professor at Universityof Toronto and an internationally acknowledged authority on nickel sulphidemineralisation) highlighted the Central Zone of the Nottrask mafic intrusion ashaving the potential to host commercial-grade nickel-copper sulphidemineralisation. The Nottrask intrusion is interpreted as being in the north-western extension ofFinland's Kotalahti Nickel Belt which hosts numerous nickel mines, includingOutokumpu's Hitura and Kotalahti mines. "The geophysical anomalies, whilst still speculative for nickel-copper, are"text-book" examples for massive sulphides and along strike from a major nickelsulphide mining belt. A new nickel discovery in this established nickel-miningregion would be particularly exciting." commented Patrick Cheetham, Tertiary'schairman today. Further Information: Patrick Cheetham, Tertiary Minerals Plc. Tel: +44 (0)1625-626203. Mobile: +44(0)7767-458751John Greenhalgh/Ron Marshman, City of London PR Ltd. Tel: +44 ( 0)20-7628-5518 This information is provided by RNS The company news service from the London Stock Exchange