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Scout-drilling for open cut coal, Minmi-Plattsburg area, Newcastle region, New South Wales

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Created 13/01/2025

Updated 13/01/2025

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Eleven scout drill holes entailing 1290 feet of drilling were sunk to find suitable open-cut prospecting areas for the Young Wallsend Seam of the "Upper" Coal Measures within an area of one square mile in Portion 10, Parish of Hexham, Newcastle Region, N.S.W. Several drill holes intersected the Dudley (?) and Yard Seams overlying the Young Wallsend Seam. The scout drilling defined the following inferred reserves of coal: [see record for table data]. These figures do not take into account weathering and possible worked-out areas which may reduce the reserves by as much as 30%. The seams are banded and the quality of the coal could probably be improved considerably by washing. The scout drilling did not define accurately the overburden ratios; however, it is likely that overburden to coal ratio for the Dudley (?) Seam will average very roughly 5:1 and for Young Wallsend about 9:1 if the Dudley is mined beforehand where it overlies the Young Wallsend. These results did not justify commencing a "testing and defining" drilling programme. The Yard Seam was not investigated in detail; its thinness precludes it from having any importance for open-cut mining.

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Title Scout-drilling for open cut coal, Minmi-Plattsburg area, Newcastle region, New South Wales
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/235fd8f0-7fa5-49d3-b4a1-3a6f9816c3ac
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal Data.gov.au