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Location: 35 km E from Emerald, Queensland, Australia
Duckponds RoadPO Box 1565EmeraldQueensland, Australia4720
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The mine is operated by Ensham Resources Pty Limited.
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Ensham is located in the south-central part of the Bowen Basin. The economic seams occur in the Rangal Coal Measures, which has an average thickness of 100m and a strike length of over 80km. The economic seams, contributing towards the reported resources and reserves, are the Aries and Castor with the Pollux seam included in the open cast resources. These seams have a typical economic thickness of 2m up to 6m. The Orion seam at the bottom of the package is considered uneconomical and is not reported.The project area is bound in the east by the sub-crop on the Comet Ridge and in the west by depth. Normal faulting occurs throughout the deposit, ranging in throw from 2m to 20m. There are two principal orientation of faults, east-west and northwest-southeast. Ensham produces only a limited amount of semi soft coking coal, with the majority product being a low ash, sulphur, high energy thermal coal. They can produce thermal coals with ash content between 10 to 16% and a calorific value of 6000 to 7000 kcal/kg. Total sulphur content commonly ranges between 0.6 and 0.9% and volatile matter is commonly in the order of 25 to 27%.The general landscape of Ensham is approximately 150 m above sea level (ASL) and characterised by gently undulating plains with some rocky hills with elevations up to 250 m. There are four separate surface geologies:- The predominant surface geology in the Study Area is an alluvial flood plain with stratified units from the Quaternary, including clay, silt, sand and gravel.- To the north of zone 1 and 2 there is stratified sedimentary rocks from the Eocene, with deeply weathered claystone, siltstone, sandstone, gravel, lignite, oil shale and interbedded basalt.- There is a small section in the north-east corner of zone 2 with stratified ferricrete from the Tertiary which is characterised by duricrusted paleosols at the top of deep weathering profiles.- In the centre of zone 1 and 2 there is a section of arenite-mudrock from the early/middle Triassic containing sandstones, mudstone and conglomerate.
