The Tampia Hill gold deposit, is located near the town of Narembeen in the Wheatbelt of Western Australia, 25 km east of Perth. Explaurum held the project from 2014 until the end of 2018 and during this period Kenex provided key services including on-site project management, interpretation of downhole wireline data, building 2D and 3D geological maps, and 3D mineral potential mapping for resource domaining and to help target grade control drilling inside the pit design. Kenex were also involved in the compilation of data over the wider area around Tampia and helping to target exploration using updated geological maps and mineral potential mapping.

1. Case Study
TAMPIA HILL
GOLD PROJECT

2. The Tampia Hill gold deposit, is located near the town of Narembeen in the Wheatbelt of
Western Australia, 25 km east of Perth. Explaurum Ltd held the project from 2012 (initially
as Auzex Exploration Ltd) until the end of 2018.
An overview of the main work undertaken at Tampia by Kenex for Explaurum
TAMPIA HILL
2012-2018 EXPLAURUM LTD
The Tampia deposit has a 2017 JORC-compliant Indicated Resource of 7.7 Mt @ 1.7 g/t for
420,000 oz and an Inferred Resource of 0.13 Mt @ 1.8 g/t for 7,400 oz for a total of 8.2
Mt @ 1.7 g/t for 460,000 oz.
Kenex provided key services including on-site project management, interpretation of
downhole wireline data, building 2D and 3D geological maps, and 3D mineral potential
mapping for resource domaining.
Kenex were also involved in the compilation of data over the wider area around Tampia and
helped to target exploration using updated geological maps and mineral potential mapping.

3. THE TAMPIA HILL TIMELINE
2012
FIELD WORK
AND DRILLING
DATABASE
MANAGEMENT
DOWNHOLE OTV
INTERPRETATION
GEOLOGICAL
MAPPING
3D GEOLOGICAL
MAPPING
2D MINERAL
POTENTIAL MAPPING
2018
TENEMENT
ACQUISITION
3D MINERAL
POTENTIAL MAPPING

4. FIELDWORK
Drilling of the project area commenced in 2014,
overseen by geologists from Kenex and RSC.
By 2017, Kenex was focussed on modelling as
well as OTV data compilation and interpretation.
Kenex geologists continued regular site visits to
the Tampia project to meet up with the on-site
geologists and discuss progress and planning the
next steps.
Back to Timeline

5. TAMPIA HILL DATABASE
The Tampia Hill project database began life as a Microsoft
Access database in 2014 in order to store both historical
geochemistry and drill holes data and new drill hole data
from the Explaurum campaigns.
A relational database was created, using hole and sample
ID as unique identifiers to tie in all datasets generated by
the drilling, downhole data acquisition and sample assay
processes. Queries were set up to facilitate simple exports
for 3D modelling and downhole logging purposes.
By 2017, the database management had progressed
through an update with RSC and was then managed on
site by Explaurum as an SQL based proprietary database
with an industry-standard format.
Kenex assisted Explaurum to move all the data to the new
format and continued to assist with importing, exporting
and verifying the data.
Design, management, maintenance and migration
Back to Timeline

6. INTERPRETING DOWNHOLE DATA
OTV and physical property logging was
interpreted by Kenex during the second
drill programme. Downhole logging of
density and natural gamma radiation was
very helpful for attributing the geology
and structural measurements were used
to orient the extended drill programmes.
DOWNHOLE LOGGING AND OTV INTERPRETATION
By combining on-site logging of
lithology with data from downhole
tools used in the field, the exploration
team was able to take a significant
step towards a more complete
understanding of the geology at
Tampia Hill.
UNDERSTANDING GEOLOGY
As more RC drilling was undertaken,
downhole logging and OTV data was
collected and interpreted to expand and
add detail to the 3D geological model. The
structural trends observed were used to
plan a resource drilling programme and
generate a 3D geological map.
PLANNING RESOURCE DRILLING
Back to Timeline

7. GEOLOGICAL MAPPING Desktop-based
When exploration began at Tampia
Hill, the geology and structural history
were poorly understood, mainly due
to farming activity and lack of
outcrop.
Drilling and geophysical methods
were vital for the interpretation of the
underlying lithology, and structures
have also provided critical information
about the general geology and
mineralisation of the area.
Remapping the geology over the
wider area around the Tampia
prospect using newly acquired high
resolution gravity and magnetic
data was critical to enable effective
targeting of the mineralisation at
Tampia.
Back to Timeline

8. 3D GEOLOGICAL
MAPPING
Regional 3D structural modelling was undertaken,
based on the regional geological map, regional
geophysical data, as well as exploration RC drilling
and downhole logging at prospects identified by the
2D mineral potential map.
The 2D and 3D geology maps were continuously
updated as new data was collected and used to
guide active and future drilling.
Back to Timeline

9. Back to Timeline
2D MINERAL
POTENTIAL MAPPING
LOOKING FOR GOLD OCCURRENCES
SIMILAR TO TAMPIA IN THE AREA
Kenex led the search for potential targets around the
greater Tampia area, using geophysical surveys, satellite
and exploration data to update the regional geological map.
2D mineral potential modelling was also undertaken over
the larger exploration area. The resulting mineral potential
map confirms that the gravity data not only provides critical
geological data, but also allows identification of high priority
targets for future exploration using spatial data modelling
techniques.
The strong correlation between combined high gravity-low
magnetic signatures to known gold mineralisation confirms
that gravity can be a robust predictor of gold mineralisation
in the Tampia region.
The results have highlighted several untested areas with
similar gravity signatures and anomalous gold
geochemical signatures to that at the
Tampia Hill gold deposit.

10. 3D MINERAL
POTENTIAL MAPPING
As 40 x 40 m RC and DD resource drilling
progressed over the Tampia Hill prospect,
Kenex generated a 3D mineral potential
model based on the current 3D geological
map and the results of the regional 2D
mineral potential mapping. The purpose of
this prospect-scale 3D mineral potential
model was to assist with the domaining of
the resource model.
The resource and domain models were
further tested with a 10 x 10 m infill drilling
programme, which identified that the
domain model aids considerably in
interpreting continuity of the gold
mineralisation. The 3D potential work on
domains was not incorporated into the
resource estimations due to the takeover
of the company in 2018.
Back to Timeline

11. WWW.KENEX.COM.AU
Andrew@Kenex.com.au
Creating opportunities in the spatial world