announcement better assay results, page-2

bit hard to read...prob better to get the PDF, but here it is if u got a slow link...


ASSAYING ENHANCES 2007 URANIUM INTERCEPTS FROM BIGRLYI

Energy Metals, as manager of the Bigrlyi Joint Venture, advises that geochemical assays
from the first batch of samples from the 2007 drilling campaign at Bigrlyi have been
received. Although the intervals are not completely identical, the geochemical assay results
(U3O8 values) are generally significantly greater than uranium values estimated from
downhole gamma logging (eU3O8 values) eg:
Hole B07133 8.0m @ 0.41% U3O8 (compared with 6.25m @ 0.24% eU3O8)
Hole B07128 4.0m @ 0.20% U3O8 (compared with 3.40m @ 0.08% eU3O8)
Refer to the table below for a comparison of significant intercepts (>0.1% U3O8) with
downhole gamma logging (eU3O8 values) previously announced to ASX.
DEPOSIT HOLE FROM
(m)
INTERCEPT U3O8
%
U3O8
lbs/t
V2O5
%
eU3O8 INTERCEPT*
%
B07124 151.5
157.5
1.0m @
1.5m @
0.15
0.60
3.37
13.25
0.30
0.79
1.10m @ 0.06 from 150.83m
1.80m @ 0.20 from 156.53m
B07127
281.0
289.0
293.0
4.0m @
4.0m @
7.0m @
0.14
0.33
0.05
3.04
7.33
1.17
0.81
2.18
0.22
4.65m @ 0.07 from 280.42m
9.25m @ 0.12 from 288.42m
B07128 81.0
131.0
135.0
3.0m @
2.0m @
4.0m @
0.83
0.11
0.20
18.34
2.36
4.48
2.97
0.05
0.48
4.15m @ 0.25 from 80.97m
0.30m @ 0.01 from 130.87m
3.40m @ 0.08 from 134.92m
B07131 210.0 1.0m @ 0.11 2.33 0.27 1.55m @ 0.08 from 134.92m
B07132 70.0 1.0m @ 0.14 3.09 0.95 1.0m @ 0.04 from 69.59m
B07133 254.0
270.0
8.0m @
2.0m @
0.41
0.91
9.06
19.97
1.37
0.75
6.25m @ 0.24 from 254.78m
5.0m @ 0.17 from 268.43m
A4
B07135 110.0
115.0
1.0m @
1.0m @
0.23
0.12
5.05
2.67
0.85
0.73
No significant probe results
No significant probe results
DEPOSIT HOLE FROM
(m)
INTERCEPT U3O8
%
U3O8
lbs/t
V2O5
%
eU3O8 INTERCEPT*
%
B07237 390.5 0.5m @ 0.13 2.95 0.26 1.25m @ 0.04 from 389.49m
B07239 100.5 1.5m @ 0.69 15.28 0.62 2.1m @ 0.22 from 99.93m
B07240 344.0
346.5
1.0m @
2.0m @
0.20
0.46
4.32
10.08
0.24
0.50
1.35m @ 0.07 from 344.05m
2.45m @ 0.15 from 346.30m
B07241
393.5
396.0
0.5m @
0.5m @
0.18
0.20
4.00
4.32
0.33
0.36
0.85m @ 0.05 from 391.83m
A15
B07242 338.5 0.5m @ 0.28 6.24 0.02 1.05m @ 0.05 from 337.66m
*eU3O8 Intercepts announced to ASX 31 May 2007 and 21 June 2007. Assays based on core sampled at 0.5m intervals and
analysed by ALS Chemex (Brisbane). U analysed by XRF; V by XRF (<1000 ppm) and ICP (>1000 ppm).
Further downhole probe results and geochemical assay results are expected to be available
early August 2007.
LINDSAY DUDFIELD
Executive Director.
About the Bigrlyi Project
The Bigrlyi project is located in the Northern Territory approximately 350km northwest of
Alice Springs and is a joint venture with Paladin Resources’ subsidiary Valhalla Uranium
(41.7%) and Southern Cross Exploration (5%). The project was subject to significant
exploration in the period 1974 to 1982 and is characterised by high uranium grades,
accompanied by significant levels of vanadium.
Current resources at Bigrlyi total 14.3 Mlbs U3O8 and 16.3 Mlbs V2O5 (0.5 kg/t U3O8 cutoff),
with most of the resources within 200m of the surface (refer ASX announcement dated 2
March 2007 for further details).
* Uranium mineralisation grades through this report are annotated with a sub-prefix ‘e’ because they have been reported as uranium equivalent
grades derived from down-hole gamma ray logging results and should be regarded as approximations only.
Gamma logging or “total count gamma logging” (the method used by Energy Metals) is a common method used to estimate uranium grade
where the radiation contribution from thorium and potassium is very small. Sandstone and calcrete hosted deposits are usually of this type.
Gamma logging does not account for energy derived from thorium and potassium (as does spectral gamma logging) and thus the result is
expressed as an equivalent value or eU308.
The gamma radiation from potassium, uranium and thorium is dominated by gamma rays at specific energy levels. These energy levels are
sufficiently well separated such that they can be measured independently of each other. They are typically measured as narrow energy bands
that contain the specific energy levels. Bands are used because the measuring systems do not have the resolution to target a specific energy
wavelength. There is some scattering of higher energy gamma radiation, e.g. thorium, into lower energy radiation, e.g. uranium and potassium.
This scattered radiation can be calculated from suitable calibration procedures and removed from the lower energy level measurements. This
method is commonly termed spectral gamma logging.
Energy Metals uses gamma probes which are initially calibrated at the PIRSA (Primary Industry & Resources South Australia) test pits and then
subjected to annual recalibration to ensure the integrity of the probe instrument. Furthermore, Energy Metals runs regular checks to validate the
accuracy of probe data using calibrated test holes located on site.
Note: The information in this announcement that relates to mineral resources is based on information compiled by Trevor Saul, BSc AusIMM,
who has more than 5 years relevant experience. Mr Saul is a Senior Geologist with Energy Metals Limited, Manager of the Bigrlyi Joint Venture,
and is a full time employee of that company. Mr Saul has sufficient experience relevant to the assessment of this style of mineralisation to qualify
as a Competent Person as defined in the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves – The
JORC Code” and consents to the inclusion of the information in the report in the form and context in which it appears.