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Location: 148 km NW from Mackay, Queensland, Australia
Level 15/40 Creek StreetPO Box 10630BrisbaneQueensland, Australia4000
Stay on top of the latest gold discoveries. Examine the latest updates on drilling outcomes spanning various commodities.
Mining scale, mining and mill throughput capaciites.Full profiles of select mines and projects.
Shaft depth, mining scale, backfill type and mill throughput data.Full profiles of select mines and projects.
Equipment type, model, size and quantity.Full profiles of select mines and projects.
Camp size, mine location and contacts.Full profiles of select mines and projects.
JS Sonoma Pty Ltd is a subsidiary of JFE Shoji Trade Corporation (a JFE Holdings subsidiary), and CSC Sonoma Pty Ltd is a subsidiary of China Steel Corporation.
The Sonoma Coal Mine is operated by Sonoma Mine Management Pty Ltd.
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The main stratigraphic unit of interest is the Moranbah Coal Measures, which are part of the Blackwater Group. The Moranbah Coal Measures are characterised by seven persistent coal seams. All coal seams are potentially economic.A Seam Highly banded and extensively intruded as well as heat affected. Although the seam occurs over a 15 – 19 m thick interval, individual coal plies are typically = 1 – 1.5 m thick. The coal is commonly dull, intermittently stony, and contains abundant mudstone and tuffaceous claystone partings. The A Seam is generally classified as non-economic because of its inferior quality.B Seam The B Seam is separated from the underlying A Seam by 15 – 24 m and is dark grey, fine-grained sandstone, siltstone and carbonaceous mudstone. The northern extent of the B Seam sub crops approximately 12 km to the northwest in the vicinity of Coral Creek. The seam consistently dip at approximately 5 – 7° toward the south and south-southeast, but records indicate dipping as high as 12 – 15° in some areas. At the northern end of the deposit, the B Seam is essentially a single entity. Where the B Seam is a single entity, it has been identified as 12 – 16 m thick. As the seam continues to the southwest, it progressively splits into two and three distinct units and during mining these were observed as B1 (1 m thick), B2 (3 m thick) and B3 (1 m thick).B-Rider Seam The B-Rider Seam is generally thin (0.7 – 2.0 m), laterally persistent coal seam which is midway between the B and C Seams. In most instances, the B-Rider Seam is found to be intruded or significantly heat affected. The B-Rider Seam is not considered to be of economic importance.C Seam The C Seam is separated from the underlying B Seam by approximately 70 m of interburden. The C Seam ranges in thickness from 4.5 – 6.7 m with dips to the south-southeast at a constant angle of around 4 – 5°. The C Seam has a consistent geophysical profile that is more stone banded in the top half of the seam, but as the coal plies display similar ash liberation characteristics as in the lower parts of the seam, it was treated as a single ply for mine planning purposes.E Seam The E Seam correlates with the Goonyella Middle seam. The experience of mining at Sonoma Coal Mine (SCM) indicates E Seam can be intruded and heat affected. The E Seam is not considered to be of high economic value for the SCM.P Seam The P seam is separated from the underlying E Seam by approximately 30 – 40 m of light to medium grey siltstone. The seam itself comprises an upper and lower horizon separated by approximately 1 m of partly carbonaceous siltstone. Neither coal horizon is particularly well developed, with the upper ply ranging between 0.5 – 1.0 m thick and the lower play between 1.0 – 1.5 m thick. Both horizons are also either extensively intruded or significantly heat-affected and are not considered to be of economic importance.Q Seam Q Seam ranged in thickness with two parting bands (10 – 25 cm) appearing in the seam, which form marker bands for the purposes of mining activities. Mining of Q Seam in other QNH pits has seen Q Seam split into three working sections with a total thickness of 9 m, of which two were economic and mined.
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