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Location: 5 km N from Bargo, New South Wales, Australia
2975 Remembrance DrivewayBargoNew South Wales, Australia2574
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Tahmoor Coal is a wholly owned entity within the SIMEC Mining Division of the GFG Alliance group.
Tahmoor Mine lies in the southern part of the Permo-Triassic Sydney Basin, within which the main coal bearing sequence is the Illawarra Coal Measures. Coal is mined from within the Bulli seam. The Bulli seam coal is predominantly a hard-coking coal.In the Tahmoor South Project area, the Bulli coal seam is located approximately 370 to 430 m below the surface and is approximately 1.8 to 3.3 m thick. The Bulli seam geology (full) consists of a main Bulli Coal portion, underlain by a stone band (bedding parting) that typically varies in thickness between 0.05-0.2 m, which is further underlain by a poorer quality coal split which ranges in thickness from 0.1-0.3 m. The longwall working section in LW S1A-S6A plans to extract all three stratigraphic layers. Product yield is primarily driven by the proportionality of the aforementioned layers within the working section.Igneous Intrusions Igneous intrusions are present throughout the broader Tahmoor Mine area and are typically identified to be north-west to south-east orientated when intersected in the workings. These bodies have presented as dykes with associated sill material, ranging from very strong fresh material to weak highly altered rock. In the eastern part of the mining leasehold, a plug, which is exposed at the surface, is considered to be present at Bulli Coal Seam level. This feature is external to current mine plans.Within the southern mining domain, a small-scale igneous intrusion has been mapped and projected within the South 2 Mains Headings, immediately to the East of LW S1A. No further intrusions have been encountered through extensive inseam drilling conducted to date.Regionally, to the south-east of the Tahmoor Mine leases, the Bulli Coal Seam is extensively intruded and/or cindered to the east of Bargo. The north-western limits of this intrusion partly encroach on the south-eastern part of the Tahmoor South Lease.Seam Dip The Bulli Coal Seam has a gentle dip to the northeast, averaging 1.7°, although can range with dips up to 4° being recorded. This northeast dip is consistent to being positioned on the western arm of the Camden Syncline and western edge of the Sydney Basin.The Bulli Coal Seam average gradient is 3-5% (i.e. 1 in 20) or from 8-15 m across the proposed longwall face width within the mining area of LW S1A-S6A.Seam Thickness and Working SectionThe main part of the Bulli Coal Seam at Tahmoor Mine is a consistent seam of bright and dull coal. The thickness of the Bulli Coal Seam section ranges from 1.7-2 m thick in LW S1A-S6A.
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