exploration update

Just rec'd

TASMAN RESOURCES NL
ACN 009 253 187
Level 40, Exchange Plaza
2 The Esplanade, Perth, Western Australia 6000
Telephone: (08) 9282 5889 Facsimile: (08) 9282 5866
Website: www.tasmanresources.com.au
AUSTRALIAN STOCK EXCHANGE ANNOUNCEMENT
EXPLORATION UPDATE
25 November 2004
MARATHON SOUTH DRILLING
Drillhole MS 1 is currently at a depth of 783m, and is drilling ahead in hematite-altered breccias,
The thickness of the breccias intersected is now 225m. A further 100m of drill rods have been
obtained and, subject to the capacity of the drill rig, it is proposed to continue to 900m.
As previously reported, the breccias consist of a variety of matrix and clast support styles, with
clasts of metasedimentary and igneous rocks within a hematite-dominated matrix. A variety of clast
types, and evidence of repeated brecciation is evident, and sericite and silica (quartz) alteration
occur throughout. However, volcanic rocks and tuffs within the breccias have now been identified.
These rocks are very similar to rocks known from within the upper, unmineralised parts of the
Olympic Dam deposit (see Figures 1 and 2).
Residual gravity data for the prospect highlight a complex feature, approximately 4km by 6km in
size, with MS 1 having intersected the extreme southwest margin of it (see Figure 3). The location
of MS 1 was partially chosen to test a strong AMT electrical geophysical response, and the hole has
clearly not tested the densest, and probably most hematite-rich parts of the feature. The location of 4
proposed initial follow up drillholes are also indicated on Figure 3.
Figures 4 and 5 are isometric views, showing the distribution of relatively dense rocks at Marathon
South, and are based on gravity inversion modelling. The location of MS 1 is shown. The
considerable size, shape and complexity of the Marathon South feature are apparent.
Gregory H. Solomon
Executive Chairman