Below Water Table Mining, Pit Lake Formation, and Management Considerations for the Pilbara Mining Region of Western Australia DOI Creative Commons
Cherie D. McCullough

Mining, Год журнала: 2024, Номер 4(4), С. 863 - 888

Опубликована: Окт. 17, 2024

Located in northern Western Australia, the Pilbara is highest productivity region for iron ore and other metal mining Australia. As elsewhere, mine closure guidelines typically require post-closure landforms to be safe, stable, non-polluting sustainable here long-term. I reviewed primary literature, including international, national state government regional case studies related socio-environmental topics, understand key risks management strategies needed achieve these broad expectations below water table (BWT) mining. Many BWT open cut projects will result pit lakes this region, many of which very large degrade quality with increasing salinisation over time. an arid are dominated by alterations hydrology hydrogeology largely unmodified natural waterways freshwater aquifers. Although remote, social may also present, especially terms impacts groundwater values. This remoteness decreases potential realising practicable development post-mining land uses lakes. Explicitly considered risk-based decisions should determine outcomes voids, when backfill prevent lake formation warranted. However, maintaining or backfilling a void against balance opportunities.

Язык: Английский

Below Water Table Mining, Pit Lake Formation, and Management Considerations for the Pilbara Mining Region of Western Australia DOI Creative Commons
Cherie D. McCullough

Mining, Год журнала: 2024, Номер 4(4), С. 863 - 888

Опубликована: Окт. 17, 2024

Located in northern Western Australia, the Pilbara is highest productivity region for iron ore and other metal mining Australia. As elsewhere, mine closure guidelines typically require post-closure landforms to be safe, stable, non-polluting sustainable here long-term. I reviewed primary literature, including international, national state government regional case studies related socio-environmental topics, understand key risks management strategies needed achieve these broad expectations below water table (BWT) mining. Many BWT open cut projects will result pit lakes this region, many of which very large degrade quality with increasing salinisation over time. an arid are dominated by alterations hydrology hydrogeology largely unmodified natural waterways freshwater aquifers. Although remote, social may also present, especially terms impacts groundwater values. This remoteness decreases potential realising practicable development post-mining land uses lakes. Explicitly considered risk-based decisions should determine outcomes voids, when backfill prevent lake formation warranted. However, maintaining or backfilling a void against balance opportunities.

Язык: Английский

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