PROJECTS – WIlgerup
The proposed operation at Wilgerup consists of an open cut mine which will extract approximately ten (10) million tonnes of iron ore over a six (6) year period. Ore will be processed through a crushing and screening plant at a rate of one million six hundred thousand tonnes per annum (1.60 Mtpa) to produce two saleable products – “lump” and “fines”, which will then be trucked approximately 140km to Port Spencer for export. During the life of the mine, exploration and resource definition drilling will continue on the lease, generally along the same geological structure that hosts the Wilgerup deposit in an effort to increase the resource base and extend the mine life.
Once mining commences the operation will employ approximately one hundred (100) people on the mine lease. It is proposed that personnel will reside in private accommodation or short term accommodation in the nearby town of Lock and will commute to and from the mine by a company supplied bus or by personal transport.
Centrex has completed a number of environmental and mine plan studies. These have been presented to PIRSA and a Program for Environmental Protection and Rehabilitation was approved on 29th July by the Director of Mines. The timeframe for commencement of development of the mine will depend on the development of Port Spencer.
Fig. 1 :: Wilgerup :: Process Flow Diagram (Click to see image) Fig. 2 :: Wilgerup :: Location of Wilgerup Mine Site (Click to see image)
In its final (mined out) profile, the proposed pit will be nine hundred and twenty metres (920m) long, three hundred and seventy metres (370m) wide (at its widest point) and one hundred and fifty metres (150m) deep. The pit wall angles and berm widths used to design the pit aim to ensure that the pit walls are stable over the life of the operation.
Fig. 8.b :: Wilgerup :: Wilgerup North Pod long section (looking west) of the geological interpretation of the massive hematite. (Click to see image) Fig. 8c :: Wilgerup :: Wilgerup North Pod cross section (looking north) indicating the outline of massive hematite. (Click to see image)
The indicated and inferred resources are as follows:
Indicated Resource
|
Ore Type
|
Fe% cut-off
|
Tonnage (Mt)
|
Fe%
|
SIO2 %
|
AI2 O3 %
|
LOI %
|
P %
|
|---|---|---|---|---|---|---|---|
| Massive Hematite |
55 | 10.4 | 59.7 | 3.8 | 2.3 | 4.6 | 0.49 |
| Hematite Carbonate |
45 | 0.6 | 49.9 | 6.8 | 3.7 | 7.9 | 0.63 |
| Hematite Clay |
45 | 2.2 | 49.9 | 10.5 | 4.8 | 6.9 | 0.54 |
| Total | 13.2 | 57.7 | 4.9 | 2.8 | 5.1 | 0.50 |
Inferred Resource
|
Ore Type
|
Fe% cut-off
|
Tonnage (Mt)
|
Fe%
|
SIO2 %
|
AI2 O3 %
|
LOI %
|
P %
|
|---|---|---|---|---|---|---|---|
| Massive Hematite |
55 | 0.5 | 58.7 | 4.1 | 2.4 | 4.2 | 0.50 |
| Hematite Carbonate |
45 | 0.1 | 49.9 | 6.4 | 2.8 | 8.2 | 0.63 |
| Hematite Clay |
45 | 0.15 | 50.3 | 9.8 | 3.3 | 6.4 | 0.64 |
| Total | 0.75 | 56.0 | 5.5 | 2.6 | 5.1 | 0.53 |
Competent person's statement
The information in this Public Report that relates to Mineral Resources is based on, and accurately reflects, the information compiled by Mr. Alastair Watts of Centrex Metals Limited and Mr. Adam Miethke of Snowden Mining Industry Consultants. Mr. Watts is a member of the Australasian Institute of Mining and Metallurgy and Mr. Miethke is also member of the Australasian Institute of Mining and Metallurgy. Messrs Watts and Miethke have sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as a Competent Person as defined in the 2004 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Messrs Watts and Miethke consent to the inclusion in the report of the matters based on the information in the form and context in which it appears.
