Tierra Group completed tradeoff studies evaluating potential TSF sites to store 25 million tonnes of tailings. Tradeoff studies included dam layouts, cost estimating, and recommendations for future work. Trade off study challenges were minimizing costs while still providing feasible and environmentally sensitive alternatives.
Tierra Group developed a site-wide water management plan, and performed a liquefaction potential study following the Samarco tailings dam failure in Minas Gerais, Brazil. A tailings storage facility water balance was developed to optimize water usage and minimize risks at…
Tierra Group International performed a Tailings Storage Facility Third Party Design Review for a confidential client in Turkey.
Tierra Group was retained to perform metallurgical due diligence on two operating properties and two prospects in early stage development. The two existing operations consisted of a convention heap leach followed by ADR to produce a Dore on-site and a…
Tierra Group assisted the Bald Mountain Mine Project Development Team with an evaluation of potential uses for spent ore on legacy heap leach facilities. Tierra Group completed a collaborative trade-off study with site personnel evaluating spent ore use as overliner…
Tierra Group is implementing a corporate Tailings Stewardship Strategy (TSS) at all of ASARCO Grupo Mexico’s mines in Arizona, USA (Hayden, Mission and Ray mines). Tierra Group conducted a site visit to each site to perform dam safety inspections, interview…
La Libertad is an open-pit gold mine located in the Chontales department of Nicaragua. Tierra Group’s team was initially involved at La Libertad in 1998 when a geologic hazard assessment was performed, which identified a major landslide that was disrupting…
Lode-Star Gold, Inc. in advance of their proposed mining operations is preparing to submit a Physical Separation Facility application with the state of Nevada for their Goldfield Bonanza Project located in Esmeralda County, Nevada. The mine is located in the…
Tierra Group developed a site-wide water management plan to improve operational water usage and management at Jaguar Mining's Turmalina Complex in Minas Gerais, Brazil. Turmalina is a zero-discharge facility that required optimizing tailings supernatant usage in the process, enhanced evaporation…
Tierra Group supported proposed Rapid Infiltration Basins Geotechnical Investigation at Au-reka Gold Corporation’s Cove Project in Nevada. Investigation included borehole drilling, test pits, infiltration testing and permeability testing.
Tierra Group completed a technical review of the heap leach pad for the Amulsar Mine property owned by Lydian Armenia located near the town of Jermuk to the southeast of Armenia. The heap leach pad consists of four phases with…
Tierra Group International performed a Tailings Technical Due Diligence Review for a confidential client in Armenia.
Tierra Group completed a trade-off study to evaluate raising the existing Tailings Storage Facility (TSF) or building a new TSF at KGHM's Robinson Mine in White Pine County, Nevada. An Alternatives Decision Matrix (ADM) was developed using weighted qualitative and quantitative parameters…
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