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Mine Closure: Can Closure Create Opportunities?

Defining An Effective Post-Mining Land Use
Jeff Parshley

Defining post-mining land uses is an essential part of mine closure. Properly selected, the post-mining land use will guide the operator’s closure vision and objectives, and inform the selection of closure methods and technologies.

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Source Assessment To Support Closure Designs For A Site In Southeast Asia
Claire Linklater

In mid-2017, SRK was appointed to prepare a closure plan to pre-feasibility study (PFS) level for a mine in Southeast Asia.

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Finding Value In Closure
Rob Bowell, Carl Williams

The closure and abandonment of mining areas is rarely caused by complete consumption or extraction of a resource but rather is typically associated with diminishing financial returns based on metal values, or social, political, and environmental restrictions that lead to an uneconomic scenario for a resource unit.

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Collaborative Closure Planning
Emily Harris

It’s no secret that effective mine closure planning requires a multi-disciplinary approach, but integrating inputs and teams can be a challenging task.

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Design-Build Mine Remediation Projects
Stuart McPhee

Anyone who has been involved with project management or construction can attest to the inherent challenges that can be experienced on mine remediation projects.

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Sand And Aggregate: Diminishing Natural Resources And Potential Sources
Val Sawyer

Sand and aggregate are two of the most commonly used natural resources in modern society to maintain the existing infrastructure and provide for future construction.

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Jerritt Canyon Tailings Storage Facility
Dave Wanner

The Jerritt Canyon Mine Tailings Storage Facility 1 (TSF1) located in northeast Nevada was commissioned in 1980 and operated through 2013 for the disposal and containment of spent tailings slurry from the Jerritt Canyon milling operations.

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Investor, Lender And Owner Perspectives On Mine Closure
Terry Braun

For owners of active mines, mine closure links past performance to future permission.

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Rehabilitation At Closure Of A Ag-Pb-Zn Mine In Argentina
Ignacio Ezama, Camilo de los Hoyos

This case history is about an old mine in the province of Jujuy, Argentina, which has been producing silver, lead and zinc for 80 years.

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Modelling Landform Evolution
Heather Thomson

Landform evolution models (LEMs) are used to estimate potential surface water runoff and predict resulting erosion and deposition processes on a landform scale.

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Thickened Tailings Deposition For Closure
Nicholas Thompson, Pepe Moreno

With an ever-present need to control costs, the management and closure planning of tailings storage facilities (TSFs), already perceived by many as a heavy cost burden, are key areas targeted for savings.

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A Variety Of Heap Closure Solutions At One Mine Site
Breese Burnley

SRK has assisted a client with closing four gold heap leach pads at the same mine through various phases of operation and ownership since 1998.

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Heap Leach Final Draindown Model
Iozsef Miskolczi

Vast inventories of leach solutions unsuitable for direct discharge to the environment are among the legacies of heap leach operations at closure.

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Land Use Versus Land Capability
James Lake

Legislative requirements in many jurisdictions require that the mine closure plan include a detailed plan of the post closure land uses.

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Predicting Erosion Impacts To Closed Mine Waste Facilities
Terry Braun

Post-closure site management at mine sites typically includes measuring surface reclamation success, monitoring surface water and groundwater quality, and maintaining active or passive water management systems.

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Is Your Pit Lake A Post-Closure Liability?
Mark Willow

Except in some extremely arid environments or at higher elevations, open pit mining tends to result in the development of semi-permanent or permanent water bodies post closure, when dewatering has ceased and pre-mining water tables have recovered.

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Rehabilitation Metrics And Value Of Knowing What Can Be Achieved
Matthew Law

Along with other countries, holders of mining and prospecting rights in South Africa must provide financial guarantees for rehabilitation. Rehabilitation is achieved when closure commitments are met, confirmed by a Closure Certificate issued by the Department of Mineral Resources.

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Presenting Closure Plans To Communities
Daryl Hockley

The typical mine closure plan is a lengthy report designed to meet all the requirements of owners and regulators, not to mention SRK’s numerous technical specialists. Is it any wonder that the average person has trouble forming a clear picture of the plan’s final results?

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Geochemical Modelling To Support Mine Closure Planning
David Bird

Geochemical modelling may not immediately come to mind when scoping a work plan to develop a mine closure strategy.

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Major Funding Available In China’s Mine Closure Market
Andy Li, Yonglian Sun

SRK China focuses on mine closure business development in China, and visited potential business partners and clients, together with SRK South Africa and SRK North America.

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Mine Closure Regulations in Chile
Marcela Curotto

Assessing mine closure in Chile is a process that began partially in 1994 with the Law 19.300, Law of Environmental Bases, which requires an environmental assessment of the closure phase of all projects, establishing conceptual measures focused on prevention, mitigation and/or compensation of the environmental impacts produced in the closure phase.

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Mine Closure Practice In Turkey
Bora Arpacıoglu

Mine closure and reclamation issues are among the more recent regulatory developments in the Turkish mining industry.

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Rehabilitating A Legacy
Raymond Mayne

South Africa has a long history of mining extending beyond 100 years.

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Ghana Closure Studies
Carl Williams

Ghana’s world-class gold mining industry is well established. Numerous in-country mine-related regulations and requirements are enforced; however, post-closure requirements are less well regulated and generally only meet the minimum standards required by financiers of the mining operation.

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