Daily Update

Daily Update

Daily Update

Best Practices for the Closure of Legacy Tailings Storage Facilities

Mauricio Ortuzar, Elizabeth Herrera, Emilio López and Claudia Reyes, Nava Consulting, Chile

Recovery of Arid Areas at Minera Bismark

Deisy Salas and Francisco Macías, Industrias Peñoles, Mexico

The Role of Stakeholder Engagement in Creating a Positive Legacy for Mine Closure: A Means to an Effective Transition

Jessica Pryor and Chanel McCall, Digby Wells Environmental, South Africa

Reduction of Carbon Footprint in the Execution of Mine Closure Covers with Geosynthetics

Gustavo Fierro, TDM Group, Peru

The Potential of Integrated Solid Waste Management for Technosol Production and Mine Land Rehabilitation in Southern Brazil

Jéssica Weiler, Paulo da Rosa and Vitoria Garcia, Universidade Federal do Pampa, Brazil

Social Transition in Mine Closure: Pathways for Participation and Impact Management

Hernán Maureira and Paula Muñoz, ARDUM Ingeniería, Chile

Key Elements Vital for Using Erosion Models to Design Final Mine Landforms in Queensland, Australia

Louisa Nicolson, Office of the Queensland Mine Rehabilitation Commissioner, Australia

Application of Geocells for Substrate Retention and Revegetation in Mine Closure Cover Systems

Bruna Todescan, TDM Geossintéticos, Brazil; Lucas Machado and Marcelo Amaral, HIDROBR, Brazil

Phasing out Coal in El Cesar (Colombia): Towards a Just Socioeconomic Transition

Jeanette Moreno, Guillén Calvo, Insuco Center for Social Innovation, Colombia; and Diana Méndez, Insuco Center for Social Innovation, Mexico

Stability of Mine Closure Covers with Vegetative Species and Geosynthetics

Gustavo Fierro, TDM Group, Peru

Decontamination, Decommissioning and Demolition of Mining Assets

Nara Victoria, Vivian Sanches and Beatriz Gil, ERM, Brazil

Public Participation and Social Risk Management as Cornerstones of Mine Closure Planning: Lessons from Recent Work in Colombia

Anny Gutiérrez, Martha Peñuela, ERM, Colombia; and Gillian Gregory, ERM, Canada

Closure of Mining Waste Dumps

Karippe Vieira, Paulo Amaral and Sandra Ribeiro, Vale, Brazil

Multi-Criteria Analysis for the Evaluation and Selection of Closure Measures During the Life of Mine Facilities

Julia Olivares, Angélica Vivas and Luis Gutiérrez, WSP, Chile

Methodology for Engaging External Stakeholders in the Closure Vision of Carmen de Andacollo

Marcela Cubillos, Stantec, Chile; Roberto Riffo, Carmen de Andacollo, Teck Resources, Chile; and Arturo Mejías, Teck Resources, Chile

Portable X-ray Fluorescence (pXRF) for Mining Geochemical Characterization: A Multi-Element Validation

Carla Barbosa, Marine Bouguereau, Oliver Cooper, Andrea Dupré and Nicolás Ferrada, Amphos21, Chile

Analysis and Reuse of the Tailing from the Chicrín Antiguo Deposit, Nexa Resources Peru

José Cayetano, Pasco Mining Complex, Nexa Resources, Peru

Quantifying the Intangible: Social Place Attachment in a Potential Resettlement Plan for Mine Closure

Cecilia Ferrer, Cheryl Sater, Carolina Escudero, Paulina Contardo and Sebastián Ramírez, Gestiona Consultores, Chile

Application of Natural Geochemical Background to Support Water Quality Objectives in Mine Closure

Alonso Huaman, Pablo Quesada, Amphos 21, Peru; and David Arcos, Amphos 21, Spain

A Differential Financial Assurance Model for ASM (MAPE) Closure in Colombia

Tommy Vallejo and Oscar Restrepo, Universidad Nacional de Colombia

Community Reflections on Mine Closure: Social Challenges Beyond Environmental Considerations

Nicolás Riquelme, Cerro Colorado, BHP, Chile

Geochemical Behaviour of Cemented Oxidized Mine Tailings and Effectiveness in Limiting Acid Mine Drainage

Audrey Jalce, Isabelle Demers and Benoît Plante, UQAT, Canada; Thomas Pabst, NGI, Norway; Thomas Genty, Agnico Eagle, Canada; Eric Brouard, Holcim, France; and Sophie Turcotte, Ministry of Natural Resources and Forests, Canada

Identification of Patterns in the Distribution of Mine Closure Costs

Clara Cheib, Débora Schaper and Ricardo Lessa, WSP, Brazil; and Kim Ferguson, WSP, Canada

GeoBIM Framework for Planning, Execution and Financial Management of Mine Closure

Rafael Modesto, B. Pinto and F. Dubeski, Intertechne Consultores, Brazil

The Role of Geochemistry in the Long-Term Physical Stability of Mining Facilities

Renán Pulquillanca and Luciano Achurra, SLR Consulting, Chile 

From ARO to LOM: A New Perspective and Proposal for Closure Planning Modeling

Mario Oliveira, Karippe Pulino, Paulo Ribeiro, Isabela Diniz and Alessandro Resende, Vale, Brazil

Creating Value Amid Uncertainty: Territorial Co-design of a Public-Private Agreement in the Context of the Temporary Closure of Cerro Colorado

Daniella Gómez, Francisca Basaure and Carlos Iribarren, Cerro Colorado, BHP, Chile

Analysis of Environmental Impacts on Groundwater Following the Closure of Barite Mining Activities

Taíse Rebouças, Vanessa Moura, Milena Santos, Elane Coêlho, Quézia Santos, Matheus Naves, ERM Consulting and Engineering, Brazil: Ben Crummins, Sahithi Rondla and Joseph Robb, ERM Consulting and Engineering, USA

Ex-Ante Estimation of Mine Closure Costs in Open-Pit Mining Operations

Mariel Carrión, Enrique Jélvez and Gustavo Lagos, Pontificia Universidad Católica de Chile

Building Trust: The Santa Cruz Experience in Implementing Mine Closure Policies with an ESG Approach

Paola Pavanello, ENERMIN, Argentina

Progressive Mine Closure at Cerro Moro: Circular Economy Strategies in Argentine Patagonia

Silvio Romano, Paulino Velázquez, Matías Peguero, Alejandro Acosta, Melisa Castro and Sergio Bravo, Cerro Moro, Pan American Silver, Argentina

Groundwater Recovery: Implications for Mine Closure in Quadrilátero Ferrífero, Brazil

Ana Carolina Neves, Ana Paula Corrêa and Waldemar Felitti, Aecom, Brazil

Post Mining Land Use: Global Perspective and Local Regulation

Javiera Soto, Paula Muñoz and Ximena Araneda, ARDUM Ingeniería, Chile

Progressive Mine Closure Under Environmental Constraints: Technical Lessons from Operations

Vilson dos Reis, Guilherme Cubi, Universidade Federal de Alfenas, Brazil; Felipe Souza and Hernani de Lima, Universidade Federal de Ouro Preto, Brazil

Post-Closure Fund Sensitivity to Maintenance Periodicity Variations

Victoria Vásquez and Claudia Goza, Pares y Alvarez, Chile

The Closure of the Smelter as an Opportunity for the Transformation of Codelco Ventanas

Claudio Flores, División Ventanas, Codelco, Chile

Definitive Closure Plans at Hydrocarbon Mining Site ENAP Magallanes

Karina Cerna, Empresa Nacional del Petróleo (ENAP), Chile

Sustainable Post Mining Management

Malcolm Gallardo and John Melgarejo, Compañía de Minas Buenaventura, Peru

AI and Remote Sensing in Pit Lake Monitoring for Enhanced Decision-Making

Christian Ihle, René Lagas, and Cristian Reyes, SHIMIN Engineering, Chile

Progressive Mine Closure: Digital Conceptual Model for Data Management and Decision Support

Maria Costa, Marcelo Cristo and Bárbara Vinent, Arcadis, Brazil

Feasibility of MABIOMET Device for Monitoring Heavy Metals and Metalloids Bioaccessibility in Mining Soils

Carolina Parodi, Keyla Alencar and Miguel Montenegro, Universidad Tecnológica Metropolitana, Chile; and Jorge Mendoza, Universidad de Chile

Carbon Balance Estimate in a High-Altitude Andean Peatland

María Paz Valenzuela, Jacques Wiertz, Felipe Labra, Edmundo Claro, Fernanda Caro, SMI-Chile; Lohengrin Cavieres, Marco Salamanca, Universidad de Concepción, Chile; and Macarena Troncoso, Universidad del Desarrollo, Chile

Rethinking Cemented Tailings Engineered Cover Performance Under Progressive Closure

Lincar Pedroni and Yvan Soré-Gamo Koutou, AtkinsRéalis, Canada 

Digital Consulting for Real-Time Closure Monitoring

Summer Sun, Phillip Crouse and Ray Dorow, Stantec, USA

Driving Innovation in Future Use Projects: The Sandbox Approach at Águas Claras Mine

Marina Oliveira and Gustavo Roque, Vale, Brazil

Progressive Closure Planning and Sediment Management at a Mining Dam in Brazil

Marina Kolanski, Marco Nascimento, Osmar Costa, Tetra Tech, Brazil; and Raissa Cotta, Flaviane Thimotio and Samuel Tarazona, Vale, Brazil

Dynamic Simulation of Heap Leach Closure to Validate Mine Closure Schedules

Gonzalo Padilla and Claudio Loyola, Loyola Consultoría e Ingeniería de Procesos, Chile

Mine Closures and Heritage: The Dispute Over Liability in Santa Bárbara

Santos Silvestre and John Melgarejo, Compañía de Minas Buenaventura, Peru

Closure Planning of the Filtered Tailings Storage Facility at the Morelos Complex, Mexico

Rafael Curra, Torex Gold Resources, Mexico

Evaluation of the Variability in the Direct Construction Costs of a Channel for Closure Conditions under Climate Change Scenarios

Danko Munita, Lilian Valdebenito, SRK Consulting, Chile; Felipe Montenegro and Marco Alfaro, Kinross, Chile

Mine Closure Plan and Future Use Definition in the Context of the Decharacterization of Dams in Minas Gerais

Bruno Kamada and Rodrigo de Albernaz, AECOM, Brazil

Progressive Closure and Comprehensive Waste Management in the Decommissioning of the Cathode Plant at Teck Quebrada Blanca

Arturo Mejías, Teck Resources, Chile

Evaluation of the Economic and Environmental Benefits of Using Geosynthetics for Mine Closure in Brazil

Bruna Todescan, TDM Geossintéticos, Brazil; and Gustavo Fierro, TDM Group, Peru

Tourism as a Strategy for Social Transition in Mining Closure: Challenges in a Locality in Northern Chile

Matías Villalobos-Morgado, SMI-Chile

Five Years On: Reflections on the Queensland Mine Rehabilitation Reforms and Their Impact

Kate Baker, Office of The Queensland Mine Rehabilitation Commissioner, Australia

Geomorphological Closure Design of a WRF (Peru)

John Melgarejo, Compañía de Minas Buenaventura, Peru; and Alfredo Gallardo, Amphos21, Peru

Integration of ESG Principles in Mine Closure Management: a Case Study

Taíse Rebouças, Vanessa Moura, Milena Santos, Elane Coêlho, Quézia Santos, Matheus Naves, ERM Consulting and Engineering, Brazil; Ben Crummins, Sahithi Rondla and Joseph Robb, ERM Consulting and Engineering, USA

Strengthening Closure Planning: Updating Closure Objectives and Success Criteria at Cerro Colorado

Francisca Arriagada and Luisa Cares, Cerro Colorado, BHP, Chile

Closure Cost Estimation in Waste Rock Dumps Using SRCE: Impact of Unit Rates and Fleet Strategies

Paola Cardozo, Felipe Montenegro, Marco Alfaro, Kinross Gold Corporation, Chile; Leonardo Aguirre, Braulio Osses and Ignacio Godoy, SRK Consulting, Chile

Nova Vila Project: Mine Closure and Economic Diversification in Nova Lima, Brazil

Marcos Morais, Fernando Claúdio, Fernanda Guabiroba and Pedro Costa, AngloGold Ashanti, Brazil

Daily Update

Daily Update

Pilot Plan for Remediating Component Cover under Progressive Closure

Clark Nolasco and Javier Gonzales, Walsh, Peru

Circular Economy Waste Valorization Driven by Geomorphic Rehabilitation: Carlota Iron Mine, Spain

Ignacio Zapico, Eduardo Sánchez, STONE161, Spain; Julio Garrote, Mikel Calle, Universidad Complutense de Madrid, Spain; and Fernando Prada, Nalon Minerals, Spain

Case Study on Temporary Area Closure, Progressive Closure, and Dam Decommissioning

Rogério Santana, Flávia Ramos, Paul Cezanne and Juliana Esper, Jaguar Mining, Brazil

Geomorphic Landform Design in Latin America: Why It is Rare and the Spectrum of Possibilities

Neeltje Slingerland, WSP, Canada

Evolution in Mine Closure Practice: Toward an Integrated and Sustainable Approach in Argentina

María de los Ángeles Salas, Knight Piésold Consulting, Argentina

Wanagon Overburden Stability and Closure Design at Grasberg Surface Mine, Papua, Indonesia

Pirmansah, Made Mahayasa and Mark Johnson, Freeport-McMoRan, USA

Management of Progressive Closure in Filtered Tailings Deposits Using Phytotechnology

Leandro Licuime, Elizabeth Díaz and Katherine Ascencio, Compañía Minera del Pacifico, Chile

Geomorphic Rehabilitation Combined with AMD Remediation at Minas de Riotinto (Spain)

Emilio Sanjuán, José Pimiento, Atalaya Mining, Spain; María Tejedor, Restauración Geomorfológica, Spain; José Francisco Martín and David Jiménez, Universidad Complutense de Madrid, Spain

Auspiciador Sesión Plenaria

Balancing the Mine Closure Equation: Conundrum or Opportunity?

Resa Furey, Cristian Marambio, Andrew Watson and Phillip Crouse

The Mining and Quarry Restoration Network: Boosting Progress in Mine Rehabilitation

Cristina Martín-Moreno, Universidad Complutense de Madrid, Spain; and Beatriz Olmo, Red Restauración Minas y Canteras, Spain; Universitat Politècnica de València, Spain

Methodology for the Evaluation of Closure Alternatives

Ricardo Soto, Juan Tellez and José Ale, WSP, Peru

Capstone Copper: Early Citizen Participation Closure Plan

Solange Gantenbein, Mejores Prácticas Asociados, Chile; and Alejo Gutiérrez, Capstone Copper, Canada

Evaluation of the Hydrogeological Behavior of Tailings-Dolomite Co-Disposal to Mitigate Acid Mine Drainage

Javiera Farias, Isabelle Demers and Carmen Neculita, Université du Québec en Abitibi-Témiscamingue, Canada

Law 20,551 Amendments for Just Labor Transitions in Mine Closures: 2026-2036 Projections

Gonzalo Padilla, Loyola Consultoría e Ingeniería de Procesos, Chile

Mine Closure Plan or Project? Myths and Realities

Ronald Aquino, Minsur, Peru

Understanding the Social Impacts of Mine Closure: Three Challenges for Effective SIAs

Camila Cabrera and Nigel Wight, SMI-Chile

Beyond the Crest: Plan Ahead

Tomás Argandoña, BGC Engineering, Chile; and Mike Belfry, BGC Engineering, Canada

Presentation to be Confirmed

Integrated Closure Strategies in Iron Mining: Experience at El Algarrobo, Cerro Negro Cristales, Emisario Chapaco and El Romeral Tailings Deposit

Roberto López, Compañía Minera del Pacífico, Chile

Multisensor Assessment of Surface Change at the La Paciencia Mining Liability (Chile) using Sentinel-1 and Sentinel-2

Eslainer Avendaño, Universidad Arturo Prat, Chile

Enhancing Closure Governance with Closure Maturity and Project Management over the Asset Life

Elzanne Moodie, Glencore, Switzerland

Case Study: Use of Jet Grouting in Clay Soils for the Closure of a Long-Standing Inactive Tailings Deposit

Javiera Cortez, David Hernández, Pablo Valdés and Guillermo Tamblay, ARDUM Ingeniería, Chile

Governance for the Safe Closure of Tailings Storage Facilities: The Engineer of Record Perspective

Germán Toledo, Mauricio Gómez and Rodrigo Cádiz, Arcadis, Chile

Evaluation of the Short-Term Effect of Remediation of an Abandoned Sulfide Mine

José María Esbrí, María Luz Garcia-Lorenzo, Inmaculada Ferri-Moreno, S. Castell, A. Ruiz, Universidad Complutense de Madrid, Spain; and Alba Martinez-Coronado, Universidad Rey Juan Carlos, Spain

Decommissioning of Dams and Community Risk Management: Hydrological Assessment for Mine Closure

Letícia Pires, Guilherme Rodrigues, Zandra Cunha, Felipe Starling, Ana Viegas and Luanna Guimaraes, Vale, Brazil; and Sarah Luiz, Geoestável, Brazil

From Liability to Resource: Copper Mine Tailings as Structural Aggregates

Ítalo Montofré, Mathías Becerra, Vicente Zetola, Rodrigo Rojas and Elizabeth Lam, Universidad Católica del Norte, Chile

Daily Update

Daily Update

The Impact of Statistics on the Occupational Safety and Health Management System in Mine Closure Operations (2018-2025)

Paulino Mancha and John Melgarejo, Compañía de Minas Buenaventura, Peru

The LIFE RIBERMINE Project: Coupling of Best Practices in Mine Rehabilitation at Abandoned Mines

María Tejedor, Restauración Geomorfológica, Spain; Cristina Martín-Moreno, José Martín, Universidad Complutense de Madrid, Spain; and Greg Hancock, The University of Newcastle, Australia

Risk-Based Prioritization of Mine Closure Studies: A Quantitative Approach

Andreina Brugaletta, Carmelo Galindo and Daniela Levis, SRK Consulting, Argentina

Minera Los Pelambres’ Plan for the Closure of the Quillayes Dam Tailings Using a Phytostabilization Process

Francisco González, Minera Los Pelambres, Chile; Diego Moure and Daniel Green, Meristema Consultores, Chile

Integrating Deconstruction Engineering into Mine Closure Planning: A Framework Across the Life of Mine

Clinton Dick and Ben Heraghty, Liberty Industrial, Australia

Rectification of the Pircas River Channel, Remediation and Removal of Legacy Liabilities

Sergio Cacciabue, Julio Eller and Estefania Borgo, SSR Mining, Argentina

Closure Governance beyond Administrative Authorization: Tailings Closure Cases

Jorge Campos and Paula Saavedra, Anddes Asociados, Chile

Effects of Vegetation on the Stability and Closure of Mine Waste Dumps

Pedro Freu and Brendha Mota, Vale, Brazil

Methodology for Delineating Impacted Soils in the Remediation of a Waste Storage Facility Under Closure

Marine Bouguereau, Carla Barbosa, Nicolás Ferrada, María Paz Muñoz, Paz Gutiérrez, Gladys Narváez, Amphos21, Chile; Felipe Couto, RSK Group, UK; and Marcia Faermann, Escondida, BHP, Chile

Biological Recovery of Flora and Fauna Following the Progressive Closure of the Huinipampa Dam: Antapaccay Case

Juan Castro, Johana Quispe, Nils Carrasco, Aldo Suárez, Paulo Hidalgo and John Pinto, Compañía Minera Antapaccay, Peru

Auspiciador Sesión Plenaria

Methodology for Environmental Compensation Planning for High-Andean Lagoon Systems in Mining Projects

Yeselin Díaz, Ana Cadillo, María Mercedes Medina, Pablo Quesada, Melitza Cornejo and Patricia Calderon, Amphos 21, Peru

Chemistry to Closure: Using PHREEQC to Inform Pit Lake Closure Strategies in an Andean Mine

Vitor Leite, Alexander Flores, Carlos Quevedo, WSP, Peru; Layane Silva, WSP, Australia; Jahzeel Dueñas and Edwin Zegarra, Gold Fields, Peru

Restoration of Bofedal and Wetlands through the Planting of Totora (Schoenoplectus Californicus)

Joel Ccente and John Melgarejo, Compañía de Minas Buenaventura, Peru

Chemical Stability Assessment of Remaining Facilities at Cerro Colorado

Paula Martínez, Fernando López, Pampa Norte, BHP, Chile; Francisca Arriagada, Miguel Muñoz and Luisa Cares, Cerro Colorado, BHP, Chile

Newmont Approach to Nature Positive

Mauricio Quiroz, Newmont Gold Corporation, Chile

Rainfall Infiltration in a Waste Rock and Tailings Pile: Case Study in Minas Gerais, Brazil

Daniel Henriques, Henrique Mendes, Gabriel Pereira, Ana Lúcia Yoda, Tractebel, Brazil; Isabella Viel and Luiza Morais, Vale, Brazil 

Surface Water Management for Mine Waste Dumps in Tropical Climates

Lincoln Almeida and Jéssica Lima, DF+ Engineering, Brazil

Chemical Stability Management in Brownfield Mining: Current State, Gaps, and Closure Planning Implications

Carolina Soto, Vasty Zamorano, Diego Cortínez and May-Lin Almendras, Arcadis, Chile