Tertiary Minerals PLC
13 April 2005
TERTIARY MINERALS PLC
NICKEL-COPPER DRILLING TARGETS DEFINED AT NOTTRASK
* Nine Conductors Identified within Three Horizons along 750m Long Zone
* 3km Long Zone Of Possible Disseminated Mineralisation Extends Along
Tertiary Minerals plc, ("Tertiary" or "the Company") announces plans to
drill-test new targets for nickel-copper massive sulphides identified by an
extensive ground geophysical survey at Nottrask, the Company's main nickel
prospect in Sweden.
Results from a large loop transient electromagnetic (TEM) survey across the
Central Zone of the Nottrask mafic intrusive confirm a total of nine, closely
spaced, near-surface conductors and one deeper conductor, interpreted to
indicate massive-sulphide mineralisation.
The near-surface conductors are located on three distinct horizons within a
strike length of 750m. An additional zone of low resistivity, extending over 3km
along strike from the massive sulphide targets, may indicate the presence of
disseminated nickel-copper sulphide mineralisation or additional, but yet
unresolved, massive sulphide zones.
Previous exploration at Nottrask, including work by Tertiary, has focused on
the Marginal Zone of the gabbro intrusive and whilst this established the
occurrence of massive sulphides in the Nottrask intrusion, the nickel
sulphides found were of low nickel tenor.
Subsequent work by Tertiary and by Anthony Naldrett, (Emeritus Professor at
University of Toronto and an internationally acknowledged authority on nickel
sulphide mineralisation) whilst consulting to Tertiary on Nottrask,
highlighted the Central Zone as having the potential to host higher-tenor nickel
The Nottrask intrusion is interpreted to lie in the north-western extension of
Finland's Kotalahti Nickel Belt which hosts numerous past and current producing
nickel mines, including Outokumpu's Hitura and Kotalahti mines.
The Company considers that targets defined by the recent survey at Nottrask
represent an exciting opportunity to advance its main nickel-copper project at a
time when the market for these commodities is strong.
Subject to field validation of anomalies, a drill programme will commence as
soon as the Spring thaw is complete. The geophysical survey and interpretation
of the results was carried out by Swedish geophysical consulting group Geovista
Patrick Cheetham, Tertiary Minerals Plc. Tel: +44 (0)1625-626203.
Mobile: +44 (0)7767-458751
John Greenhalgh/Ron Marshman, City of London PR Ltd. Tel: +44 ( 0)20-7628-5518
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