Geophysical Assessment in Sweden

Tertiary Minerals PLC
17 March 2000

                                 

Drilling Of Windfall Project In Sweden To Start In Early April
Ground Geophysical Survey Outlines New Open-Ended Anomalies
Exploration Of Other Areas planned As Field Season Approaches
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AIM-listed  Tertiary  Minerals plc  has  completed  a  preliminary
geophysical  assessment  of its Windfall zinc  project  in  Sweden
which  has  enhanced the mineral potential of the  untested  1.5km
zone  between  Vindfall and Sortarnan, the two  known  mineralised
prospects on the property.

Interpretation  of  recently  acquired  airborne   magnetic   data
confirms   that   these  two  prospects  lie   within   the   same
stratigraphic   trend,   thus   confirming   the   potential   for
mineralisation  being  present  in  the  previously  untested  gap
between  the two.  The data also suggest the presence of a  deeper
zone  of  alteration beneath the Vindfall prospect which may  host
further mineralisation.

The  geophysical assessment also included an induced  polarisation
(IP)  ground survey at Windfall to determine if the low levels  of
iron  and copper sulphides associated with project's zinc minerals
could  be  detected  by  such a method.  Unlike  most  base  metal
sulphide minerals, sphalerite, the dominant zinc sulphide  mineral
at  Windfall, is not electrically conductive and can be  difficult
to detect by most geophysical methods, including IP.

Vindfall Prospect

Three  orientation profiles run over the known main zone  of  zinc
rich  mineralisation at Vindfall did not give a response,  thereby
limiting  the method's value in exploring for extensions  of  this
main  zone.  However, the test profiles did encounter  a  good  IP
anomaly approximately 200m to east of the known mineralisation  in
an area previously mapped as unprospective granite which has never
been tested by drilling. This anomaly extends over a strike length
of  325m and is open and increasing in strength to the north-east.
It runs semi-parallel to the main zinc zone.

This  new anomaly sits in the interpreted alteration zone  beneath
the  main  zone  and is a priority drilling target.   Two  diamond
drill  holes to test this anomaly are planned to start  in  April,
and   additional  holes  will  step  out  to  test  the  projected
extensions of the main zinc zone.

Sortarnan prospect

Two  orientation  IP  profiles were run at Sortarnan,  some  1.5km
north-east  along  strike from Vindfall,  the  southern  of  which
detected  a  weak  anomaly associated with known high  grade  zinc
mineralisation.   One exploratory IP profile was  run,  some  300m
north-east  of  the limit of Tertiary's previous  drilling.   This
encountered  a  similar  weak  IP anomaly  which  may  indicate  a
significant   untested  strike  extension  to   the   known   zinc
mineralisation.

As  at Vindfall, both orientation traverses encountered a good  IP
anomaly  some 200m east of the known zinc-mineralised zone.   This
anomaly   is   also   open  ended  and  may  indicate   additional
mineralisation.

Planned  drilling at Sortarnan will test the IP anomalies and  the
projected extensions of the high grade zinc-mineralised zone.

Windfall Geochemical Programme

A  geochemical programme is also planned to test broader areas  of
the prospective lithology along strike from Vindfall and Sortarnan
and  other  outlying  areas of the company's  mineral  exploration
permits.


Further Information:

Patrick Cheetham, Executive Chairman, Tertiary Minerals  plc,
Tel: [phone]

Ron Marshman or Ken Gooding, City of London PR, 
Tel: [phone]