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Sheffield Resources Ltd. — Regulatory Filings 2013
Nov 10, 2013
44780_rns_2013-11-10_e2bd7da6-8a8d-46d7-8d3f-f6c3b3a29949.pdf
Regulatory Filings
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ASX and Media Release
11 November 2013
HIGH GRADE DRILLING RESULTS FROM THUNDERBIRD
KEY POINTS
-
Latest infill drilling results continue to return outstanding high grade intervals, e.g. 22.5m @ 13.3% HM from 1.5m
-
Results continue to demonstrate excellent continuity of high grade mineralisation
-
Mineralisation remains open along strike and down dip
-
40% of Thunderbird assay results now received from 2013 drill programme
-
Remaining assay results include samples from extensional drilling to the deposit – due in coming weeks
Mineral sands explorer Sheffield Resources (“Sheffield”) (ASX:SFX) today announced further high grade drill results from its world class Thunderbird heavy mineral sand (HMS) deposit near Derby in the Canning Basin region of Western Australia.
The second batch of assay results reported from the 2013 aircore drilling programme returned further thick, high grade intervals, confirming the excellent grade continuity of the deposit. The results relate to 77 infill drill holes (Figure 1) and include:
-
40.5m @ 9.30% HM from 1.5m (THAC246), including 22.5m @ 13.3% HM from 1.5m
-
55.5m @ 10.0% HM from 30m (THAC344), including 49.5m @ 11.0% HM from 30m
-
42m @ 8.61% HM from 9.5m (THAC244), including 33m @ 10.2% HM from 18.5m
-
36m @ 8.19% HM from 15m (THAC242), including 24m @ 10.9% HM from 16.5m
-
63m @ 7.41% HM from 18m (THAC345), including 46.5m @ 8.96% HM from 28.5m
-
(Refer to Table 1 for full details).
The results underscore the excellent continuity of both the mineralised sequence and the high grade zones (Figure 2).
The 2013 drilling programme at Dampier comprised 326 holes for a total of 21,747m at the Thunderbird and Argo prospects.
Managing Director, Bruce McQuitty said the geometry of the high grade zone at Thunderbird
is emerging from these results.
“The infill drilling has outlined a coherent zone of mineralisation above 7.5% HM, which in current results is about 2.5km wide, 4km long and expected to grow as results are returned from the remaining drill holes.”
“Within this zone is a broad high grade lobe up to 39m thick, orientated in a north south direction. We are still awaiting results for many holes drilled within this interpreted channel.”
In addition, the assay results still to be received include samples from extensional drilling to the deposit. Following receipt of these assays in the coming weeks, the significance of this discovery will become clearer.”
“Once all results are received we will finalise the resource update, followed by a scoping study scheduled for Q1 2014.”
Sheffield Resources Ltd ACN 125 811 083 14 Prowse Street West Perth WA 6005 T: +61(0) 8 6424 8440 F: +61(0) 8 9321 1710
- 2 -
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Figure 1: Thunderbird drill collar plan showing location of holes with results announced to date, and the current (Dec 2012) resource outline projected to surface
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Figure 2: Section A-A’, looking northwest showing the excellent continuity between holes of the mineralised envelope (>2% HM), and the higher grade zones (>5% and >7.5% HM)
- 3 -
2013 drilling programme
These results are the second batch of assays reported from the 2013 aircore drilling programme at Dampier. Results for approximately 40% of samples submitted from the 2013 drilling programme at Thunderbird have been received (see Sheffield’s ASX release of 21 October 2013 for details of the first batch (approximately 20% of assays)). Results are also reported from drilling at the Argo prospect (see below).
About the Thunderbird Deposit
The Thunderbird deposit is located on crown land in the central part of the Dampier Peninsula, close to existing ports and sealed highways (Figure 3).
Thunderbird has Indicated and Inferred mineral resources totalling 1.37Bt @ 6.1% HM for 83Mt of contained HM (at 2% HM cut-off), including 5.7Mt of zircon, 1.3Mt of rutile, 3.6Mt of leucoxene and 24Mt of ilmenite (Appendix 1).
The resource includes a coherent high grade core of 517Mt @ 10.1% HM (Indicated and Inferred), containing 3.6Mt of zircon, 0.8Mt of rutile, 2.2Mt of leucoxene and 15.2Mt of ilmenite (at 7.5% HM cut-off).
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Figure 3: Location of Sheffield’s Dampier HMS Project and the Thunderbird deposit
This zone, which averages 20m thickness, is the focus of initial development studies.
The deposit has favourable geometry, occurring as a thick, shallowly-dipping sheet 4km x 5km in area, extending from surface and open in most directions. Due to the shallow dip of the deposit, approximately 40% of the total resource area has less than 3m of overburden.
Metallurgical testwork confirms Thunderbird will generate high quality marketable products using conventional processing technology (see ASX release of 25 March 2013). Product assessment by TZ Minerals International (TZMI) confirms Thunderbird zircon as premium grade and suitable for the ceramic sector; while the primary ilmenite is suitable for sulphate TiO2 pigment manufacture and sulphate or chloride slag. The secondary ilmenite, rutile and high TiO2 leucoxene are suitable for the welding electrode sector (see ASX release of 1 August 2013).
Thunderbird Scoping Study
Work continues on the Thunderbird Scoping Study which is scheduled for completion in Q1 2014, incorporating results from an updated mineral resource due in the same quarter.
- 4 -
Argo Prospect
Final results have been received from a first pass drill test of the Argo prospect, located 12km to the west of Thunderbird. As anticipated, the HM results were very similar tenor to those previously obtained by Rio Tinto. The programme comprised 45 aircore holes drilled for a total 2,902m, and targeted anomalous HM identified on a single historical drill transect by Rio Tinto.
Significant results (>2% HM) were returned from four holes:
-
19.5m @ 3.69% HM from 84m (ARAC043), and 4.5m @ 2.52% HM from 69m
-
27m @ 2.35% HM from 49.5m (ARAC022)
-
18m @ 2.46% HM from 55.5m (ARAC030)
-
7.5m @ 2.80% HM from 52.5m (ARAC041) (Refer to Table 2 for full details).
Initial drilling has to date outlined mineralisation over a 2km x 1.5km area, with an average interval thickness of 13m and depth to top of 49m (Figure 4). The mineralisation is relatively lowgrade and occurs at depth. The initial drill pattern was widely spaced (500m by 500m) and higher grade zones may exist within the target horizon. Historic work by Rio Tinto showed potential for the mineral assemblage to contain between 7.4% (AutoGeoSEM) and 17.3% (420kg bulk sand sample) zircon, depending on the method of analysis (see Sheffield’s ASX release of 7 September 2011 for details).
Sheffield will conduct mineral assemblage testwork from the drilling to determine the zircon content of the Argo mineralisation. Future exploration will attempt to track the mineralisation closer to surface and will target higher grade strandline targets.
==> picture [377 x 298] intentionally omitted <==
Figure 4: Argo prospect drill collar plan with outline of mineralisation projected to surface and Sheffield and historic drill results
- 5 -
ENDS
For further information please contact:
Bruce McQuitty Managing Director Tel: 08 6424 8440 [email protected] Website: www.sheffieldresources.com.au
Media: Annette Ellis Cannings Purple Tel: 08 6314 6300 [email protected]
COMPETENT PERSONS’ STATEMENT
The information in this announcement that relates to exploration results is based on information compiled by David Boyd. Mr Boyd is a full time employee of the Company. Mr Boyd is a Member of the Australasian Institute of Geoscientists and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and the activity to which they are undertaking to qualify as Competent Person as defined in the 2004 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (“JORC Code”)’. Mr Boyd consents to the inclusion in the report of the matters based on their information in the form and context in which it appears.
The information in this announcement that relates to resource estimation is based on information compiled by Mr Trent Strickland. Mr Strickland is a full time employee of QG Pty Ltd and a Member of the Australasian Institute of Mining and Metallurgy (AusIMM). Mr Strickland has sufficient experience in the minerals industry to satisfy the requirements to act as the competent person for this estimate as defined in the 2004 Edition of the Australasian Code for Reporting of Mineral Resources and Ore Reserves. Mr Strickland consents to the inclusion in this report of the Thunderbird Mineral Sands resource estimate.
The information in this announcement that relates to reporting of resource results is based on information compiled under the guidance of Mark Teakle. Mr Teakle is a full time employee of the Company. Mr Teakle is a Member of the Australasian Institute of Geoscientists and the Australasian Institute of Mining and Metallurgy and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and the activity to which they are undertaking to qualify as Competent Person as defined in the 2004 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (“JORC Code”)’. Mr Teakle consents to the inclusion in the report of the matters based on their information in the form and context in which it appears.
FORWARD LOOKING AND EXPLORATION TARGET STATEMENTS
Some statements in this announcement regarding estimates or future events are forward-looking statements. They involve risk and uncertainties that could cause actual results to differ from estimated results. Forwardlooking statements include, but are not limited to, statements concerning the Company’s exploration programme, outlook, target sizes and mineralised material estimates. They include statements preceded by words such as “expected”, “planned”, “target”, “scheduled”, “intends”, “potential”, “prospective” and similar expressions. The terms “Target” and “Exploration Target”, where used in this report, should not be misunderstood or misconstrued as an estimate of Mineral Resources and Reserves as defined by the JORC Code (2004), and therefore the terms have not been used in this context. Exploration Targets are conceptual in nature and it is uncertain if further exploration or feasibility study will result in the determination of a Mineral Resource or Reserve.
- 6 -
Results Tabulation - Thunderbird
Table 1: Thunderbird aircore drill results.
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| THAC208^ | 9.0 | 34.5 | 25.5 | 7.26 | 18.7 | 12.4 | 497316.5 | 8070953.9 | 101.7 | 43.5 | Twin of THAC207 & 209 |
| THAC209 | 7.5 | 36.0 | 28.5 | 7.20 | 16.3 | 13.1 | 497312.2 | 8070957.8 | 101.7 | 60.0 | Twin of THAC207 & 208 |
| including | 10.5 | 28.5 | 18.0 | 9.54 | 14.6 | 13.5 | |||||
| and | 42.0 | 49.5 | 7.5 | 3.71 | 20.0 | 10.0 | |||||
| THAC210 | 7.5 | 34.5 | 27.0 | 5.32 | 18.1 | 8.1 | 497358.7 | 8070918.0 | 101.3 | 48.0 | |
| including | 9.0 | 28.5 | 19.5 | 6.38 | 17.5 | 8.6 | |||||
| THAC211 | 6.0 | 46.5 | 40.5 | 4.80 | 19.0 | 6.1 | 497353.6 | 8070923.3 | 101.4 | 57.0 | Twin of THAC210 |
| Including | 7.5 | 30.0 | 22.5 | 7.19 | 20.1 | 7.4 | |||||
| and | 52.5 | 57.0 | 4.5 | 2.64 | 24.4 | 13.8 | |||||
| THAC212 | 6.0 | 54.0 | 48.0 | 4.48 | 19.1 | 7.0 | 497391.5 | 8070887.3 | 100.7 | 60.0 | |
| including | 9.0 | 16.5 | 7.5 | 10.6 | 18.2 | 11.1 | |||||
| including | 22.5 | 30.0 | 7.5 | 6.45 | 26.1 | 10.8 | |||||
| THAC213 | 6.0 | 43.5 | 37.5 | 4.12 | 19.7 | 8.4 | 497433.4 | 8070854.5 | 100.3 | 60.0 | |
| including | 8.5 | 28.0 | 19.5 | 5.20 | 20.7 | 7.6 | |||||
| THAC214 | 6.0 | 34.0 | 28.0 | 6.63 | 20.9 | 6.8 | 497472.8 | 8070828.2 | 100.2 | 61.0 | |
| including | 8.5 | 34.0 | 25.5 | 6.92 | 20.8 | 7.2 | |||||
| and | 40.0 | 47.5 | 7.5 | 2.11 | 26.7 | 8.8 | |||||
| THAC215 | 7.0 | 35.5 | 28.5 | 6.07 | 19.8 | 6.1 | 497506.4 | 8070789.5 | 100.2 | 61.0 | |
| including | 7.0 | 17.5 | 10.5 | 11.3 | 18.7 | 10.9 | |||||
| THAC216 | 7.0 | 52.0 | 45.0 | 4.40 | 19.2 | 7.8 | 497549.1 | 8070754.4 | 100.5 | 61.0 | |
| including | 8.5 | 26.5 | 18.0 | 7.50 | 17.9 | 8.1 | |||||
| THAC217 | 7.0 | 37.0 | 30.0 | 6.30 | 18.9 | 7.2 | 497589.8 | 8070719.3 | 100.7 | 61.0 | |
| including | 7.0 | 14.5 | 7.5 | 11.1 | 17.9 | 7.9 | |||||
| including | 22.0 | 26.5 | 4.5 | 7.85 | 16.9 | 11.0 | |||||
| THAC218 | 8.5 | 47.5 | 39.0 | 4.84 | 21.3 | 8.5 | 497643.3 | 8070674.8 | 100.8 | 61.0 |
- 7 -
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| including | 10.0 | 41.5 | 31.5 | 5.44 | 20.2 | 9.0 | |||||
| THAC219 | 7.0 | 34.0 | 27.0 | 4.64 | 24.4 | 6.1 | 497453.9 | 8070841.1 | 100.2 | 61.0 | |
| including | 7.0 | 17.5 | 10.5 | 7.77 | 24.5 | 6.1 | |||||
| THAC220 | 7.0 | 40.0 | 33.0 | 5.86 | 18.9 | 9.9 | 497470.4 | 8070856.7 | 100.4 | 61.0 | |
| including | 7.0 | 35.5 | 28.5 | 6.25 | 19.7 | 8.9 | |||||
| THAC221 | 7.0 | 32.5 | 25.5 | 5.25 | 21.0 | 7.7 | 497504.4 | 8070895.0 | 101.1 | 61.0 | |
| including | 8.5 | 25.0 | 16.5 | 6.61 | 19.9 | 7.6 | |||||
| THAC222 | 7.0 | 43.0 | 36.0 | 5.24 | 19.1 | 9.1 | 497535.8 | 8070930.9 | 101.8 | 61.0 | |
| including | 7.0 | 32.5 | 25.5 | 6.55 | 20.5 | 9.0 | |||||
| THAC223 | 8.5 | 37.0 | 28.5 | 4.00 | 17.9 | 9.9 | 497566.9 | 8070966.9 | 102.5 | 55.0 | Twin of THAC224 |
| including | 8.5 | 16.0 | 7.5 | 6.57 | 21.9 | 15.8 | |||||
| THAC224 | 7.5 | 33.0 | 25.5 | 3.94 | 21.2 | 14.8 | 497564.6 | 8070963.8 | 102.4 | 54.0 | Twin of THAC223 |
| THAC225 | 7.5 | 49.5 | 42.0 | 3.74 | 19.3 | 7.1 | 497619.0 | 8071027.6 | 102.7 | 51.0 | |
| including | 9.0 | 22.5 | 13.5 | 6.03 | 17.2 | 6.8 | |||||
| THAC226 | 4.5 | 28.5 | 24.0 | 5.13 | 20.6 | 12.5 | 498259.2 | 8071793.8 | 108.1 | 30.0 | Twin of THAC227 |
| including | 4.5 | 12.0 | 7.5 | 6.07 | 20.0 | 21.6 | |||||
| THAC227 | 4.5 | 22.5 | 18.0 | 3.30 | 17.2 | 16.7 | 498254.7 | 8071788.4 | 108.0 | 45.0 | Twin of THAC226 |
| THAC228 | 6.0 | 46.5 | 40.5 | 5.26 | 19.1 | 8.4 | 497429.9 | 8070812.4 | 99.9 | 60.0 | |
| including | 7.5 | 27.0 | 19.5 | 7.83 | 19.3 | 7.3 | |||||
| THAC229 | 7.5 | 49.5 | 42.0 | 5.27 | 18.3 | 10.0 | 497401.6 | 8070778.2 | 99.7 | 60.0 | |
| including | 9.0 | 27.0 | 18.0 | 6.74 | 16.3 | 5.6 | |||||
| including | 39.0 | 49.5 | 10.5 | 6.40 | 16.3 | 22.7 | |||||
| THAC230 | 7.5 | 57.0 | 49.5 | 4.48 | 17.4 | 7.9 | 497370.3 | 8070740.8 | 99.6 | 60.0 | |
| including | 9.0 | 27.0 | 18.0 | 7.94 | 15.7 | 7.7 | |||||
| THAC231 | 9.0 | 58.5 | 49.5 | 4.62 | 17.7 | 11.5 | 497338.5 | 8070703.3 | 99.4 | 60.0 | |
| including | 10.5 | 49.5 | 39.0 | 5.07 | 18.6 | 10.6 | |||||
| THAC232 | 39.0 | 96.0 | 57.0 | 6.60 | 10.5 | 8.8 | 497158.2 | 8068160.3 | 86.2 | 96.0 | Hole ended in mineralisation (at 2% HM cut off) |
| including | 42.0 | 85.5 | 43.5 | 7.57 | 10.6 | 9.1 |
- 8 -
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| THAC233 | 40.5 | 46.5 | 6.0 | 7.22 | 10.4 | 3.3 | 497004.5 | 8067968.0 | 89.7 | 83.0 | Hole abandoned in mineralisation (at 2% HM cut off) |
| including | 40.5 | 45.0 | 4.5 | 8.66 | 11.2 | 2.8 | |||||
| and | 54.0 | 83.0 | 29.0 | 3.78 | 9.9 | 10.9 | |||||
| including | 63.0 | 69.0 | 6.0 | 6.77 | 9.8 | 12.9 | |||||
| THAC234 | 13.5 | 55.5 | 42.0 | 5.44 | 17.0 | 10.5 | 498287.8 | 8069493.8 | 97.6 | 66.0 | |
| including | 18.0 | 40.5 | 22.5 | 8.13 | 17.7 | 14.9 | |||||
| THAC235 | 9.0 | 51.0 | 42.0 | 5.80 | 18.1 | 10.4 | 498445.6 | 8069685.6 | 99.9 | 66.0 | |
| including | 10.5 | 24.0 | 13.5 | 10.5 | 15.5 | 12.2 | |||||
| including | 31.5 | 36.0 | 4.5 | 6.69 | 21.9 | 16.4 | |||||
| THAC236 | 4.5 | 25.5 | 21.0 | 4.65 | 18.2 | 8.5 | 498323.1 | 8071095.7 | 105.6 | 42.0 | |
| including | 9.5 | 15.5 | 6.0 | 7.01 | 16.7 | 6.3 | |||||
| and | 31.5 | 36.0 | 4.5 | 2.55 | 23.1 | 6.5 | |||||
| THAC237 | 18.0 | 54.0 | 36.0 | 5.54 | 15.8 | 4.3 | 497198.0 | 8069763.8 | 97.0 | 72.0 | |
| including | 27.0 | 49.5 | 22.5 | 7.25 | 17.5 | 6.5 | |||||
| and | 60.0 | 66.0 | 6.0 | 3.09 | 14.4 | 2.7 | |||||
| THAC238 | 9.0 | 13.5 | 4.5 | 3.05 | 15.3 | 2.6 | 497031.9 | 8069562.7 | 94.9 | 78.0 | |
| and | 24.0 | 75.0 | 51.0 | 5.70 | 16.8 | 4.6 | |||||
| including | 33.0 | 58.5 | 25.5 | 8.11 | 19.1 | 4.7 | |||||
| THAC240# | 3.0 | 37.5 | 34.5 | 3.19 | 19.1 | 11.2 | 497567.1 | 8071749.8 | 105.3 | 54.0 | |
| THAC241 | 0.0 | 25.5 | 25.5 | 5.67 | 17.1 | 6.1 | 498216.3 | 8072507.6 | 111.8 | 60.0 | |
| including | 1.5 | 12.0 | 10.5 | 8.97 | 14.6 | 11.6 | |||||
| THAC242 | 15.0 | 51.0 | 36.0 | 8.19 | 18.8 | 4.5 | 496746.7 | 8070795.0 | 104.1 | 66.0 | |
| including | 16.5 | 40.5 | 24.0 | 10.9 | 16.8 | 4.9 | |||||
| THAC243^ | 0.0 | 18.0 | 18.0 | 6.91 | 18.8 | 16.8 | 497168.4 | 8072070.7 | 104.0 | 60.0 | |
| THAC244 | 9.5 | 51.5 | 42.0 | 8.61 | 17.8 | 4.9 | 496363.0 | 8071107.0 | 104.4 | 78.0 | |
| including | 18.5 | 51.5 | 33.0 | 10.2 | 18.8 | 6.1 | |||||
| and | 59.0 | 67.5 | 8.5 | 2.88 | 17.8 | 15.6 | |||||
| THAC245 | 14.0 | 55.5 | 41.5 | 8.53 | 20.2 | 4.6 | 495564.5 | 8072463.8 | 107.1 | 72.0 |
- 9 -
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| including | 14.0 | 51.0 | 37.0 | 9.42 | 20.7 | 4.7 | |||||
| THAC246 | 1.5 | 42.0 | 40.5 | 9.30 | 19.9 | 13.7 | 495866.3 | 8072835.9 | 108.3 | 54.0 | |
| including | 1.5 | 24.0 | 22.5 | 13.3 | 19.5 | 19.2 | |||||
| including | 30.0 | 36.0 | 6.0 | 6.70 | 24.2 | 12.8 | |||||
| THAC247 | 0.0 | 33.5 | 33.5 | 6.74 | 20.7 | 8.9 | 496677.8 | 8073795.8 | 113.9 | 60.0 | |
| including | 0.0 | 9.0 | 9.0 | 16.6 | 19.1 | 22.7 | |||||
| THAC248 | 1.5 | 34.5 | 33.0 | 9.90 | 18.5 | 5.9 | 495959.3 | 8073730.0 | 115.1 | 60.0 | |
| including | 3.0 | 27.0 | 24.0 | 12.6 | 17.3 | 6.5 | |||||
| THAC249 | 6.0 | 54.0 | 48.0 | 6.22 | 21.7 | 6.2 | 495099.0 | 8073480.6 | 115.3 | 66.0 | |
| including | 22.5 | 46.5 | 24.0 | 9.69 | 21.9 | 9.7 | |||||
| THAC250 | 16.5 | 54.0 | 37.5 | 7.67 | 19.6 | 7.5 | 494752.5 | 8073070.3 | 112.8 | 69.0 | |
| including | 25.5 | 54.0 | 28.5 | 8.94 | 19.6 | 8.8 | |||||
| THAC251 | 31.5 | 72.0 | 40.5 | 6.36 | 20.3 | 8.3 | 494451.6 | 8072704.7 | 112.3 | 81.0 | |
| including | 42.0 | 64.5 | 22.5 | 8.40 | 20.1 | 9.8 | |||||
| THAC313 | 10.5 | 58.5 | 48.0 | 5.02 | 14.3 | 8.1 | 497680.6 | 8070328.5 | 99.3 | 60.0 | |
| including | 10.5 | 31.5 | 21.0 | 8.46 | 13.7 | 10.2 | |||||
| THAC314 | 13.5 | 60.0 | 46.5 | 5.02 | 15.1 | 10.7 | 497516.1 | 8070136.4 | 97.2 | 60.0 | |
| including | 15.0 | 49.5 | 34.5 | 5.70 | 16.0 | 11.2 | |||||
| THAC315 | 9.0 | 57.0 | 48.0 | 5.05 | 14.2 | 7.0 | 497361.1 | 8069947.0 | 96.4 | 60.0 | |
| including | 19.5 | 37.5 | 18.0 | 8.08 | 16.1 | 12.1 | |||||
| THAC316 | 19.5 | 25.5 | 6.0 | 3.54 | 10.9 | 0.8 | 496712.1 | 8069181.5 | 89.8 | 87.0 | |
| and | 33.0 | 73.5 | 40.5 | 6.26 | 11.8 | 5.7 | |||||
| including | 36.0 | 60.0 | 24.0 | 8.11 | 9.9 | 6.0 | |||||
| THAC317 | 16.5 | 22.5 | 6.0 | 2.78 | 17.8 | 2.5 | 496873.1 | 8069363.7 | 93.7 | 87.0 | |
| and | 30.0 | 78.0 | 48.0 | 7.01 | 11.6 | 5.4 | |||||
| including | 31.5 | 69.0 | 37.5 | 8.33 | 10.2 | 5.5 | |||||
| THAC318 | 30.0 | 60.0 | 30.0 | 7.45 | 12.4 | 11.4 | 497262.8 | 8069051.9 | 93.9 | 91.0 | |
| including | 30.0 | 49.5 | 19.5 | 9.92 | 11.3 | 17.3 |
- 10 -
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| and | 66.0 | 85.0 | 19.0 | 3.18 | 11.9 | 2.9 | |||||
| THAC319 | 22.5 | 75.0 | 52.5 | 5.31 | 13.4 | 4.2 | 497420.2 | 8069240.9 | 94.9 | 75.0 | |
| and | 24.0 | 51.0 | 27.0 | 8.02 | 11.3 | 7.0 | |||||
| THAC320 | 24.0 | 52.5 | 28.5 | 6.24 | 16.6 | 9.5 | 497581.3 | 8069433.8 | 93.3 | 69.0 | |
| including | 25.5 | 43.5 | 18.0 | 7.98 | 16.3 | 9.9 | |||||
| and | 58.5 | 63.0 | 4.5 | 3.78 | 13.1 | 4.4 | |||||
| THAC321 | 16.5 | 58.5 | 42.0 | 6.13 | 15.9 | 6.9 | 497738.9 | 8069619.6 | 94.7 | 66.0 | |
| including | 18.0 | 39.0 | 21.0 | 8.67 | 16.9 | 8.9 | |||||
| including | 51.0 | 57.0 | 6.0 | 6.34 | 8.2 | 6.7 | |||||
| THAC322 | 36.0 | 87.0 | 51.0 | 5.89 | 11.5 | 3.0 | 496934.2 | 8068667.2 | 87.4 | 87.0 | |
| including | 45.0 | 75.0 | 30.0 | 7.76 | 10.9 | 4.8 | |||||
| THAC323 | 31.5 | 66.0 | 34.5 | 6.17 | 13.1 | 9.1 | 497099.4 | 8068859.9 | 88.6 | 87.0 | |
| including | 42.0 | 61.5 | 19.5 | 8.37 | 12.8 | 9.5 | |||||
| and | 75.0 | 79.5 | 4.5 | 2.41 | 13.7 | 1.4 | |||||
| THAC324 | 4.5 | 30.0 | 25.5 | 3.59 | 17.3 | 9.4 | 498868.7 | 8070962.0 | 112.5 | 42.0 | |
| including | 6.0 | 13.5 | 7.5 | 5.74 | 15.3 | 19.1 | |||||
| THAC325 | 10.5 | 37.5 | 27.0 | 3.00 | 16.6 | 9.2 | 498706.1 | 8070772.1 | 109.0 | 39.0 | |
| THAC326 | 4.5 | 33.0 | 28.5 | 4.49 | 16.3 | 20.6 | 498546.0 | 8070580.5 | 106.1 | 45.0 | |
| including | 6.0 | 24.0 | 18.0 | 5.44 | 15.1 | 24.4 | |||||
| THAC327 | 7.5 | 34.5 | 27.0 | 4.07 | 18.2 | 12.2 | 498383.6 | 8070387.4 | 103.3 | 51.0 | |
| including | 12.0 | 16.5 | 4.5 | 6.81 | 16.3 | 14.8 | |||||
| THAC328 | 7.5 | 46.5 | 39.0 | 4.69 | 17.0 | 6.5 | 498058.8 | 8070001.0 | 99.4 | 57.0 | |
| including | 10.5 | 31.5 | 21.0 | 6.17 | 16.4 | 6.3 | |||||
| THAC329 | 12.0 | 54.0 | 42.0 | 7.06 | 15.9 | 5.9 | 497905.4 | 8069818.8 | 96.4 | 54.0 | |
| including | 13.5 | 34.5 | 21.0 | 8.76 | 16.5 | 6.9 | |||||
| including | 40.5 | 45.0 | 4.5 | 7.27 | 10.2 | 9.5 | |||||
| THAC330 | 31.5 | 36.0 | 4.5 | 3.40 | 9.9 | 1.3 | 496773.3 | 8068468.5 | 88.0 | 108.0 | |
| and | 45.0 | 106.5 | 61.5 | 5.27 | 12.0 | 2.9 |
- 11 -
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| including | 46.5 | 81.0 | 34.5 | 7.34 | 12.1 | 4.1 | |||||
| THAC331 | no significant interval | 496620.5 | 8068284.4 | 90.1 | 20.0 | Hole abandoned above mineralised zone | |||||
| THAC332 | 1.5 | 36.0 | 34.5 | 5.65 | 17.6 | 15.1 | 499089.4 | 8070460.7 | 111.8 | 39.0 | |
| including | 1.5 | 18.0 | 16.5 | 7.79 | 16.8 | 26.1 | |||||
| THAC333 | 9.0 | 30.5 | 21.5 | 4.62 | 17.9 | 5.4 | 498777.2 | 8070074.4 | 105.4 | 30.5 | Hole abandoned in mineralisation (at 2% HM cut off) |
| including | 10.5 | 18.0 | 7.5 | 6.79 | 13.6 | 5.5 | |||||
| THAC334 | 10.5 | 18.0 | 7.5 | 4.36 | 23.5 | 9.3 | 498606.3 | 8069874.9 | 103.0 | 18.5 | Hole abandoned in mineralisation (at 2% HM cut off) |
| THAC335 | 10.5 | 19.0 | 8.5 | 4.79 | 19.1 | 15.7 | 498612.5 | 8069875.0 | 103.1 | 19.0 | Twin of THAC334, hole abandoned in mineralisation (at 2%HMcutoff) |
| THAC336 | 10.5 | 55.5 | 45.0 | 5.86 | 14.9 | 6.7 | 497131.3 | 8070452.6 | 100.5 | 66.0 | |
| including | 12.0 | 37.5 | 25.5 | 7.99 | 14.5 | 7.2 | |||||
| THAC337 | 13.5 | 51.0 | 37.5 | 7.03 | 15.7 | 4.2 | 496884.9 | 8070658.1 | 103.0 | 66.0 | |
| including | 16.5 | 31.5 | 15.0 | 11.2 | 15.2 | 5.8 | |||||
| and | 57.0 | 63.0 | 6.0 | 2.90 | 14.7 | 7.1 | |||||
| THAC338 | 10.5 | 55.5 | 45.0 | 6.83 | 14.9 | 6.7 | 496427.5 | 8070387.0 | 98.3 | 60.0 | |
| including | 22.5 | 48.0 | 25.5 | 10.2 | 14.5 | 10.8 | |||||
| THAC339 | 16.5 | 69.0 | 52.5 | 6.38 | 13.4 | 4.2 | 496270.3 | 8070220.6 | 98.3 | 69.0 | |
| including | 30.0 | 46.5 | 16.5 | 12.8 | 12.4 | 6.9 | |||||
| THAC340 | 22.5 | 46.0 | 23.5 | 10.8 | 12.0 | 5.5 | 496107.8 | 8070021.1 | 96.4 | 46.0 | Hole abandoned in mineralisation (at 2% & 5% HM cutoff) |
| including | 24.0 | 46.0 | 22.0 | 11.3 | 11.6 | 5.1 | |||||
| THAC341 | 18.0 | 24.0 | 6.0 | 3.74 | 16.9 | 0.7 | 496702.2 | 8069417.8 | 94.1 | 66.0 | |
| and | 30.0 | 64.5 | 34.5 | 8.81 | 11.2 | 7.2 | |||||
| including | 33.0 | 52.5 | 19.5 | 12.3 | 9.0 | 9.7 | |||||
| Including | 60.0 | 64.5 | 4.5 | 6.09 | 18.3 | 10.6 | |||||
| THAC342 | 9.0 | 45.0 | 36.0 | 6.63 | 15.7 | 5.8 | 496908.2 | 8070984.4 | 103.6 | 57.0 | |
| including | 19.5 | 27.0 | 7.5 | 14.0 | 13.7 | 12.4 | |||||
| including | 33.0 | 37.5 | 4.5 | 6.97 | 17.6 | 8.2 | |||||
| THAC343 | 15.0 | 54.0 | 39.0 | 8.62 | 16.4 | 5.9 | 496586.9 | 8070599.6 | 100.9 | 66.0 |
- 12 -
| Depth From (m) |
Depth To (m) |
Interval Width *(m) ** |
Drill Hole Collar Information | Drill Hole Collar Information | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HM wt% |
Slimes wt% |
Osize wt% |
|||||||||
| Hole ID | Depth (m) |
||||||||||
| Easting | Northing | RL | Comment | ||||||||
| including | 18.0 | 36.0 | 18.0 | 14.2 | 13.7 | 9.5 | |||||
| including | 49.5 | 54.0 | 4.5 | 6.50 | 8.3 | 4.3 | |||||
| THAC344 | 30.0 | 85.5 | 55.5 | 10.0 | 10.4 | 5.6 | 495724.9 | 8070346.0 | 97.5 | 91.5 | |
| including | 30.0 | 79.5 | 49.5 | 11.0 | 10.1 | 6.1 | |||||
| THAC345 | 18.0 | 81.0 | 63.0 | 7.41 | 14.3 | 5.4 | 496034.3 | 8070723.9 | 101.0 | 81.0 | |
| including | 28.5 | 75.0 | 46.5 | 8.96 | 14.7 | 6.3 | |||||
| THAC346 | no significant interval | 496203.0 | 8070922.5 | 103.5 | 9.0 | Hole abandoned above mineralised zone |
^Interval is identical at 2% and 5% HM cut-off. #THAC239 assays are incomplete and will be reported at a later date.
*Intervals calculated using 2% HM lower cut, 4.5m minimum width, maximum 4.5m internal waste; “ including” intervals >5% HM, 4.5m minimum width, maximum 4.5m internal waste. HM, Slimes and Oversize (“Osize”) determined by Heavy Liquid Separation (HLS) using TBE (sg. 2.96g/cc); screen sizes: slimes 38µm and oversize (“Osize”) +1mm. RTKGPS surveyed hole coordinates (+/- 0.02m X and Y accuracy), RL determined by projection to a DTM model created from regional (Landgate) spot heights. Easting and Northing coordinate system is MGA Zone 51 (GDA94), RL is AHD. All holes were drilled vertically.
- 13 -
Results Tabulation - Argo
Table 2: Argo prospect aircore drill results.
| Depth From (m) |
Interval Width (m) |
Drill Hole Collar Information | Drill Hole Collar Information | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Depth T (m) |
HM t% |
Slimes t% |
Osize t% |
||||||||
| Hole ID | Depth (m) |
||||||||||
| o | w | w | w | Easting | Northing | RL | Comment | ||||
| ARAC001 | NSR | 484520.1 | 8068647.2 | 143.6 | 72.0 | ||||||
| ARAC002 | NSR | 484895.3 | 8068323.2 | 141.8 | 91.5 | ||||||
| ARAC003 | NSR | 485277.5 | 8068008.9 | 141.0 | 93.0 | ||||||
| ARAC004 | NSR | 484959.9 | 8067614.3 | 144.2 | 93.0 | ||||||
| ARAC005 | NSR | 484642.6 | 8067245.1 | 150.1 | 117.0 | ||||||
| ARAC006 | NSR | 484327.5 | 8066853.8 | 156.1 | 67.5 | ||||||
| ARAC007 | NSR | 483997.9 | 8066471.2 | 158.7 | 46.0 | Hole did not reach target depth | |||||
| ARAC008 | NSR | 483672.7 | 8066088.6 | 156.6 | 86.5 | ||||||
| ARAC009 | NSR | 484578.5 | 8067939.4 | 147.5 | 99.0 | ||||||
| ARAC010 | NSR | 484249.9 | 8067565.2 | 154.9 | 84.0 | ||||||
| ARAC011 | NSR | 483931.3 | 8067181.7 | 160.8 | 73.0 | ||||||
| ARAC012 | NSR | 483603.7 | 8066792.8 | 161.4 | 42.5 | ||||||
| ARAC013 | NSR | 483289.7 | 8066411.5 | 158.2 | 42.5 | Hole did not reach target depth | |||||
| ARAC014 | NSR | 484194.4 | 8068258.6 | 151.2 | 99.0 | Hole did not reach target depth | |||||
| ARAC015 | NSR | 483877.8 | 8067880.7 | 158.5 | 99.0 | ||||||
| ARAC016 | NSR | 483563.2 | 8067489.3 | 163.7 | 37.5 | Hole did not reach target depth | |||||
| ARAC017 | NSR | 483228.7 | 8067111.0 | 163.8 | 32.5 | Hole did not reach target depth | |||||
| ARAC018 | NSR | 482911.3 | 8066721.7 | 159.4 | 46.0 | Hole did not reach target depth | |||||
| ARAC019 | NSR | 484125.7 | 8068976.2 | 146.9 | 69.0 | ||||||
| ARAC020 | NSR | 483808.3 | 8068582.6 | 154.5 | 114.0 | ||||||
| ARAC021 | NSR | 483480.0 | 8068199.7 | 161.5 | 42.0 | Hole did not reach target depth | |||||
| ARAC022 | 49.5 | 76.5 | 27.0 | 2.35 | 19.2 | 12.2 | 483164.6 | 8067822.7 | 166.1 | 84.0 | |
| ARAC023 | NSR | 482850.7 | 8067440.4 | 165.4 | 31.5 | Hole did not reach target depth | |||||
| ARAC024 | NSR | 482532.0 | 8067052.0 | 160.8 | 87.0 | ||||||
| ARAC025 | NSR | 482204.0 | 8066663.6 | 155.5 | 66.0 |
- 14 -
| Depth From (m) |
Interval Width (m) |
Drill Hole Collar Information | Drill Hole Collar Information | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Depth T (m) |
HM t% |
Slimes t% |
Osize t% |
||||||||
| Hole ID | Depth (m) |
||||||||||
| o | w | w | w | Easting | Northing | RL | Comment | ||||
| ARAC026 | NSR | 483745.8 | 8069287.9 | 149.8 | 63.0 | ||||||
| ARAC027 | NSR | 483426.1 | 8068901.5 | 157.2 | 7.5 | Hole did not reach target depth | |||||
| ARAC028 | NSR | 483109.4 | 8068526.2 | 163.2 | 90.0 | ||||||
| ARAC029 | NSR | 482780.1 | 8068141.0 | 166.9 | 93.0 | ||||||
| ARAC030 | 55.5 | 73.5 | 18.0 | 2.46 | 12.9 | 18.8 | 482460.9 | 8067759.2 | 165.6 | 99.0 | |
| ARAC031 | NSR | 482148.4 | 8067372.4 | 161.5 | 63.0 | ||||||
| ARAC032 | NSR | 483365.9 | 8069609.4 | 151.6 | 60.0 | ||||||
| ARAC033 | NSR | 483050.4 | 8069222.9 | 159.3 | 78.0 | ||||||
| ARAC034 | NSR | 482723.6 | 8068843.3 | 165.4 | 9.0 | Hole did not reach target depth | |||||
| ARAC035 | NSR | 482404.9 | 8068458.2 | 167.7 | 39.0 | Hole did not reach target depth | |||||
| ARAC036 | NSR | 482083.7 | 8068073.7 | 166.1 | 40.5 | Hole did not reach target depth | |||||
| ARAC037 | NSR | 481764.2 | 8067691.5 | 162.5 | 60.0 | ||||||
| ARAC038 | NSR | 482979.9 | 8069927.1 | 153.5 | 60.0 | ||||||
| ARAC039 | NSR | 482672.4 | 8069541.8 | 160.5 | 6.2 | Hole did not reach target depth | |||||
| ARAC040 | NSR | 482344.1 | 8069161.2 | 165.1 | 32.0 | Hole did not reach target depth | |||||
| ARAC041 | 52.5 | 60.0 | 7.5 | 2.80 | 11.2 | 3.9 | 482021.1 | 8068783.7 | 167.1 | 84.0 | |
| ARAC042 | NSR | 481698.0 | 8068393.0 | 165.8 | 59.0 | Hole did not reach target depth | |||||
| ARAC043 | 69.0 | 73.5 | 4.5 | 2.52 | 8.0 | 1.8 | 481378.2 | 8068013.0 | 162.2 | 108.0 | |
| and | 84.0 | 103.5 | 19.5 | 3.69 | 10.5 | 2.1 | |||||
| ARAC044 | NSR | 482676.5 | 8069546.5 | 160.5 | 26.5 | Hole did not reach target depth | |||||
| ARAC045 | NSR | 482726.3 | 8068843.1 | 165.4 | 9.5 | Hole did not reach target depth |
*Intervals calculated using 2% HM lower cut, 4.5m minimum width, maximum 4.5m internal waste. HM, Slimes and Oversize (“Osize”) determined by Heavy Liquid Separation (HLS) using TBE (sg. 2.96g/cc); screen sizes: slimes -45µm and oversize (“Osize”) +1mm. RTKGPS surveyed hole coordinates (+/- 0.02m X and Y, +/0.03m vertical accuracy). Easting and Northing coordinate system is MGA Zone 51 (GDA94), RL is AHD. All holes were drilled vertically. NSR – no significant result at a 2% lower cut.
- 15 -
Table 2: Argo prospect historic aircore drill results (Rio Tinto).
| Hole ID | Depth From (m) |
Interval Width (m) |
Drill Hole Collar Information Dth |
Drill Hole Collar Information Dth |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Depth |
HM |
Slimes |
Osize |
||||||||
| To (m) | wt% | wt% | wt% | Easting | Northing | RL | ep (m) |
Comment | |||
| JD033 | no significant interval | 482917 | 8065457 | 150 | 72.0 | ||||||
| JD034 | no significant interval | 483000 | 8066316 | 158 | 51.0 | ||||||
| JD035 | no significant interval | 482979 | 8067239 | 166 | 34.5 | ||||||
| JD036 | 42.0 | 54.0 | 12.0 | 3.49 | 7.0 | - | 483042 | 8068131 | 167 | 75.0 | |
| JD037 | 27.0 | 34.5 | 7.5 | 3.44 | 6.5 | - | 483055 | 8069009 | 162 | 36.0 | |
| JD038 | no significant interval | 483080 | 8069918 | 154 | 75.0 | ||||||
| JD056 | 54.0 | 60.0 | 6.0 | 2.61 | 7.1 | - | 483027 | 8067671 | 169 | 63.0 | |
| JD057 | 30.0 | 37.5 | 7.5 | 2.86 | 7.0 | - | 483086 | 8068655 | 164 | 43.5 | |
| JD058 | no significant interval | 483080 | 8069472 | 158 | 12.0 | Hole abandoned | |||||
| JD059 | not assayed | 483042 | 8068131 | 167 | 69.0 |
-
Intervals calculated using 2% HM lower cut, 4.5m minimum width, maximum 4.5m internal waste. HM, Slimes and Oversize (“Osize”) determined by Heavy Liquid Separation (HLS) using TBE (sg. 2.96g/cc) screen size: slimes -45µm, oversize not recorded. Hole location survey method GPS, unknown accuracy, coordinate system is MGA Zone 51 (GDA94), all holes drilled vertically.
-
16 -
Appendix 1: Thunderbird Mineral Resource at 18 December, 2012.
Table 1: Thunderbird Mineral Resource (at 2% and 7.5% HM cut-off)[1]
| Mineral Resources | Mineral Assemblage2 | |
|---|---|---|
| Resource Category Cut off (HM%) |
Material (Mt) Bulk Density HM % Slimes %3 Osize % In-situ HM (Mt) ** |
Zircon % Rutile % Leuc. % Ilmenite % |
| Indicated 2.0 |
299 2.1 7.2 19 14 21.5 |
6.9 1.6 4.3 29 |
| Inferred 2.0 |
1,075 2.1 5.8 17 16 61.9 |
6.9 1.6 4.3 29 |
| Total 2.0 |
1,374 2.1 6.1 17 15 83.4 |
6.9 1.6 4.3 29 |
| Indicated 7.5 |
138 2.1 11.5 18 16 15.8 |
6.9 1.6 4.3 29 |
| Inferred 7.5 |
379 2.1 9.6 16 19 36.5 |
6.9 1.6 4.3 29 |
| Total 7.5 |
517 2.1 10.1 16 18 52.3 |
6.9 1.6 4.3 29 |
Table 2: Thunderbird prospect contained Valuable HM (VHM) Resource Inventory (at 2% and
7.5% HM cut-off)
| Resource | Cut off |
Zircon |
Rutile | Leuc. |
Ilmenite | Total VHM |
| Category | (HM%) |
(kt)* |
(kt)* | (kt)* | (kt)* | (kt)* |
| Indicated | 2.0 |
1,483 | 344 | 924 | 6,256 | 9,007 |
| Inferred | 2.0 | 4,270 | 990 | 2,661 | 18,007 | 25,927 |
| Total | 2.0 | 5,753 | 1,334 | 3,585 |
24,262 | 34,934 |
| Indicated | 7.5 |
1,089 | 252 | 678 | 4,592 | 6,611 |
| Inferred | 7.5 | 2,521 | 585 | 1,571 | 10,631 | 15,307 |
| Total | 7.5 | 3,609 | 837 | 2,249 | 15,223 | 21,918 |
*Tonnes have been rounded to reflect the relative uncertainty of the estimate.
1 This estimate is classified and reported in a manner compliant with the JORC code and guidelines (JORC, 2004).[2] The Mineral Assemblage is represented as the percentage of the Heavy Mineral (HM) component of the deposit, as determined by QEMSCAN. TiO2 minerals defined according to the following ranges: Rutile >95% TiO2; Leucoxene 70-95% TiO2; Ilmenite 40-70% TiO2.
- 17 -
ABOUT SHEFFIELD RESOURCES
Sheffield Resources Limited ( Sheffield ) is a rapidly emerging heavy mineral sands (HMS) company.
ASX Code – SFX Market Cap @ 52cps - $61.5m Issued shares – 118.3m Cash - $5.3m (at 30 September 2013)
Sheffield’s projects are all situated within the state of Western Australia and are 100% owned by the Company.
HEAVY MINERAL SANDS
The Dampier project, located near Derby in WA’s Canning Basin region, contains the large, high grade zircon-rich Thunderbird HMS deposit.
The Eneabba project comprises multiple HMS deposits and is located near Eneabba approximately 140km south of the port of Geraldton in WA’s Mid-West region.
Sheffield is also evaluating the large McCalls chloride ilmenite project, located 110km to the north of Perth.
NICKEL-COPPER
Sheffield’s Red Bull project is located in the highly prospective Fraser Complex within 20km of Sirius Resources NL’s (ASX:SIR) Nova Ni-Cu discovery.
IRON
Sheffield holds four exploration licences prospective for iron in the North Pilbara region, all near existing iron ore mine sites or major development projects and within potential trucking distance of Port Hedland. Following its recent sale of the South Pilbara Iron tenements, Sheffield continues to seek to unlock value on its remaining Pilbara iron tenements through consolidation and/or further exploration.
POTASH
The Oxley potash project is located in the northern part of the Proterozoic Moora Basin, approximately 38km northeast of Three Springs. Sheffield is exploring the Oxley Potash project for unconventional hard rock potash mineralisation suitable for open pit mining.