Ownership
Arcadia Coal Pty Ltd owns EPC 892 and EPC 1204 Arcadia, which covers part of the Permian Bowen Basin. It is located 4 km S of Rolleston, and is bound to the north by the Dawson Highway. A rail line runs 12 km to the NW of the lease, and connects to the Blackwater – Gladstone corridor.
Location and Infrastructure
The Arcadia coal deposit lies within the NW trending Denison Trough, which in turn lies along the western margin of the Bowen Basin, and comprises coal seams within the Bandanna Formation. The Upper Permian Bandanna Formation is a direct correlative to the Rangal Coal Measures, situated to the NE. Conformably overlain by the Triassic Rewan Formation, the Bandanna Formation contains up to 7 coal seams within the area. The overlying Rewan Formation is generally capped with Tertiary basalts, unconsolidated sands or clays.
The lease is dominated by several NW trending broad anticlines, from west to east identified as the Rolleston Anticline and the Purbrook Anticline.
Location Map EPC 892, Arcadia.
Previous Exploration
40 exploration holes, including 16 open holes, and one core hole drilled by Arcadia Coal Pty Ltd had been completed within the EPCs by May 2008, targeting the two anticlines described above. A single coal quality core hole has been completed within each of the resource area by the Queensland Department of Minerals and Energy, along with a further two core holes completed by the tenement holder and others in the Purbrook Anticline. The coal quality data is reported in Table 1. The remainder of the 40 holes were completed by petroleum operators.
Resource Estimate
Excellent seismic data exist throughout the Rolleston Anticline, acquired as part of the historical oil and gas exploration within EPC892. Somewhat limited seismic coverage exists for the Purbrook Anticline, though is sufficient in both cases to demonstrate resource continuity.
Hole spacing is irregular, across the Rolleston Anticline, and Purbrook Anticline. The resource estimate presented here divides EPC892 into two domains, here identified as Rolleston and Purbrook.
Coal Quality
Coal quality is detailed in tables 1 and 2, presenting data from the main target seam, A2, and a number of underlying and overlying seams. All resource estimates contained within this report refer solely to intersections of the Aries 2 seam. Overburden ratios are too great for the current open cut mining methods, however the Aries 2 seam in both areas are amenable to shallow underground mining. Resolve Geo has estimated an inferred resource within the two target areas in EPC892 totaling 272.9Mt of bituminous coal. Details are contained within Table 3, Resource estimates, EPC892/1204
Arcadia.
Table 1: Rolleston Anticline
| Hole Number |
Seam |
Relative Density |
Moisture % (adb) |
Ash % (adb) |
Vols (adb) |
Sulphur (adb) |
Gross Calorific Value MJ/Kg (adb) |
| Consulo 5 |
A1 |
1.40 |
10.4 |
9.9 |
29.2 |
0.28 |
25.74 |
| Consulo 5 |
A2 |
1.38 |
10.5 |
8.5 |
28.3 |
0.29 |
26.59 |
| Consulo 5 |
POL |
1.34 |
10.1 |
6.6 |
31.3 |
0.37 |
27.84 |
| Consulo 5 |
O1 |
1.42 |
9.2 |
13.2 |
30.5 |
0.29 |
25.82 |
|
Consulo 6
|
A1 |
1.45 |
5.4 |
14.9 |
30.6 |
0.32 |
25.53 |
| Consulo 6 |
A2 |
1.42 |
5.1 |
13.1 |
29.5 |
0.33 |
27.00 |
Table 2: Purbrook Anticline
| Hole Number |
Seam |
Relative Density |
Moisture % (adb) |
Ash % (adb) |
Vols (adb) |
Sulphur (adb) |
Specific Energy Mj/Kg (adb) |
| Wanglee 1 |
A1 |
1.42 |
3.6 |
12.8 |
32.5 |
|
|
| Wanglee 1 |
A2 |
1.42 |
3.4 |
10.3 |
30.5 |
|
|
| PUR008C |
A1 |
1.46 |
5.4 |
15.3 |
30.9 |
0.31 |
25.79 |
| PUR008C |
A2 |
1.57 |
4.3 |
25.3 |
26.1 |
0.26 |
23.20 |
| PUR012C |
A1 |
1.50 |
5.7 |
18.1 |
30.0 |
0.30 |
24.42 |
| PUR012C |
A2 |
1.43 |
5.2 |
12.4 |
29.9 |
0.30 |
27.16 |
| PUR015C |
A1 |
1.41 |
3.7 |
14.5 |
30.8 |
0.51 |
27.50 |
| PUR015C |
A2 |
1.41 |
2.9 |
11.9 |
31.0 |
0.27 |
28.67 |
| PUR016C |
A1 |
1.56 |
4.7 |
21.4 |
30.3 |
0.33 |
23.97 |
| PUR016C |
A2 |
1.45 |
4.0 |
12.6 |
31.1 |
0.37 |
27.97 |
| PUR027C |
A1 |
1.42 |
5.9 |
15.3 |
32.2 |
0.19 |
25.88 |
| PUR027C |
A2 |
1.45 |
5.1 |
10.4 |
30.2 |
0.32 |
27.74 |
| PUR028C |
A1 Upper |
2.20 |
3.3 |
62.5 |
18.1 |
0.16 |
9.47 |
| PUR028C |
A1 Lower |
1.65 |
4.6 |
31.2 |
26.9 |
0.27 |
20.05 |
| PUR028C |
A2 |
1.42 |
4.4 |
13.3 |
30.6 |
0.32 |
26.89 |
| PUR029C |
A1 |
1.65 |
4.2 |
36.0 |
23.6 |
0.27 |
18.51 |
| PUR029C |
A2 |
1.38 |
4.9 |
10.3 |
31.7 |
0.42 |
28.75 |
Table 3: Resource estimates, EPC 892/1204, Arcadia
| Domain |
Size (m²) |
Coal Seam |
Average Thickness |
R.D |
Tonnes (mT) |
JORC Status |
| Rolleston |
31,303,415 |
A2 |
2.91 |
1.38 |
125.7 |
Inferred |
| Purbrook |
40,500,000 |
A2 |
2.56 |
1.42 |
147.2 |
Inferred |
Drill hole locations, seismic and domain distribution, EPC 892, Arcadia
