Wongai Project Presentation

Transcription

1 Wongai Project Presentation 16 September, 2014 Geos Mining Limited Andrew Todd, Coal Resource Specialist (JORC competent) 7 years: 8 years: coal resource geologist - New Zealand and Indonesia; coal quality geologist - Central Queensland coking coal mines; 6.5 years: groundwater investigation and research; and 2.5 years: senior coal consultant, Geos Mining. Wongai Project Summary: Far north Queensland Moderate sized resource (Inferred and Indicated) Advanced conceptual stage mining feasibility Premium quality high swell hard coking coal Shallow underground 30 plus years mine life Cooperative project with Aboriginal Landowners Environmental constraints. Australian Coal Context refer Qld Coal map and Quinn diagram

2 Figure 1: Wongai Project Regional Location (EPC2334) 15 x 35km licence area Remote Surrounding environmental areas Currently dry season access Supportive Aboriginal land owners

3 Figure 2: Stratigraphy Mid Late Jurassic coal measures Higher rank than similar age coal measures of SE Qld One main target seam Bathurst seam Melville seam of mineable thickness in small areas Predominantly sandstone overburden

4 Figure 3: Coal Resource Areas, EPC2334 Drill hole spacing 1-2 km Now locally 500m in Birthday Plains area Topography and structural pattern south plunging anticline Coal resource areas, Bathurst seam > 0.8m

5 Figure 4: East - West Cross-Section, Birthday Plains Deposit Structurally simple anticlinal axis Eastern and western areas structurally less simple and steeper dipping seam

6 Figure 5: 2013/14 Refined Coal Resource Areas, EPC2334 Refined resource areas after 2013/2014 drilling Minimum mining coal thickness 1.4m, with peripheral zone to 1.2m thick; Up to 3m thick

7 Table 1: Resource tonnages Area Indicated Resources (Mt) Inferred Resources (Mt) Total (Mt) Birthday Plains Airstrip Total Single target coal seam; Have modelled seam thickness and extent only; Insufficient coal seam recovery to model coal quality. Additional Exploration Target totalling 26.5 Mt to minimum 1.2m coal thickness; Coal connecting the two resource areas is <1.2m thick and not included in current estimates; Some of this coal could be extracted within connecting headings; Table 2: Raw coal qualities Resource Area Total Moisture % (ar) Inherent Moisture % (adb) Raw Ash % (adb) T S % (adb) V M % (adb) FC % adb) CSN Birthday Plains Airstrip Low volatile bituminous coking coal Very friable where vitrinite content is high Historically poor coal seam recovery, particularly in Birthday Plains area Ash predicted from geophysical logs in some holes Organic sulphur typically % (pyritic sulphur washes out) Mining Feasibility: Conceptual stage mining feasibility assessments; Shallow; Over 30 years mine life likely; Some structurally complex areas (B&P mining methods are more flexible); Groundwater systems yet to be fully investigated; Prospective for mining by underground Bord & Pillar Place Change methods; A wash plant will be required; However, significant areas of Airstrip deposit likely to be suitable as ROM product; Close to potential export shipping lanes.

8 Birthday Plains Washability: Figure 6: Raw Ash vs Cumulative F1.60, Bathurst Seam Figure 7: Raw Ash vs Cumulative Float F1.60, Bathurst Seam Figure 8: Raw Ash vs Cumulative Float F1.60, Bathurst Seam Good washing characteristics Yield greater than 70%; typically 80-85% for raw ash <25% (assumes no dilution) Typical Product 6-12%ash; 8-9 CSN; % total sulphur Air Strip Deposit: Has very low in-situ ash (6.6% average) locally, where it could be mined as a ROM product. Significant mining cost saving.

9 Coal Utilisation Typical Properties Birthday Plains Deposit (excludes peripheral areas): ANALYSIS Minimum Maximum Carbon % (daf) Hydrogen % (daf) ULTIMATE ANALYSES Nitrogen % (daf) Oxygen % (daf) Carbonates % (daf) Roga Gray-King Coke Type G8 G10 Initial Softening Temp. C Fusion Temp. C Max. Fluid Temp. C Solid Temp. C COKING PROPERTIES Max. Fluidity dd/m Plastic Range C Softening Temp. C Max. Contraction Temp. C Resolidification Temp. C Max. Contraction % Max. Dilation % Reflectance (Rv max) PETROGRAPHY Total Vitrinite% Inertinite Semi Fusinite% 1 14 Total Mineral Matter % 3 7 High swell Coking Coal Very high vitrinite High rank (Rv max) Suggests promising qualities as a premium blending coking coal Assessment is in early stage with insufficient recovery for detailed coke strength testing (planned for 2014)