Lowry, JBC, Evans, KG, Moliere, DR & Hollingsworth, I 2006, 'Assessing Landscape Reconstruction at the Ranger Mine Using Landform Evolution Modelling', in AB Fourie & M Tibbett (eds), Proceedings of the First International Seminar on Mine Closure
, Australian Centre for Geomechanics, Perth, pp. 577-586, https://doi.org/10.36487/ACG_repo/605_50
The Energy Resources of Australia Ranger Mine (ERARM) mineral lease is surrounded by, but excised from
the World Heritage-listed Kakadu National Park in the Northern Territory of Australia (Figure 1). The mine
site is located on the left bank of Magela Creek and erosion products from the mine may impact the three
small catchments to the north of the mine – Corridor, Georgetown and Coonjimba Creeks, and the large
catchment of Gulungul Creek to the west of the mine. Downstream, Magela Creek debouches into the East
Alligator River through a broad expanse of floodplain and wetlands listed as “Wetlands of International
Importance” under the Ramsar Convention (http://www.ramsar.org, 2003). The mineral lease, which lies in
the wet-dry tropics, receives high-intensity storms and tropical monsoons between October and April with
little rain falling for the remainder of the year. The annual average rainfall is 1480 mm (Bureau of
The mine has been operational since 1981, with production of uranium concentrate currently planned to
continue until 2014 (Johnston and Needham, 1999; Hollingsworth and Lowry, 2005). Mining is presently
underway in the open-cut Pit 3 (Figure 1). Pit 1 is currently being used for tailings deposition, supplementing
the existing above-grade tailing storage facility. At the completion of mining, tailings from the above-grade
facility will be transferred to Pit 3, which, along with Pit 1, will be capped. The above-grade waste rock
dumps will be rehabilitated. With the mine approaching the end of its life, attention is being increasingly
focussed on the closure and the rehabilitation of the mine. This paper describes the process that will be used
to assess the long term geomorphic stability of the proposed reconstructed landform.
Figure 1 Location and layout of the Ranger uranium mine
Mine Closure 2006 ― Andy Fourie and Mark Tibbett (eds)
© 2006 Australian Centre for Geomechanics, Perth, ISBN 0-9756756-6-4
Mine Closure 2006, Perth, Australia 577
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Assessing Landscape Reconstruction at the Ranger Mine
Using Landform Evolution Modelling
J.B.C. Lowry, et al.
586 Mine Closure 2006, Perth, Australia