- Metallurgy & Mineral Processing
- Mine-to-mill optimisation: effect of feed size on mill throughput
- The building blocks for plant design
- Froth flotation circuit design and basic testwork requirements
- Testwork at Dominga IOCG project, Chile
- Metallurgical testwork from scoping to feasibility study level
- Determining gold balance in refractory gold ores
- Philex Silangan – the effects of copper mineralogy
- Grinding circuit design principles
- Processing copper-porphyritic ore
- Designing gold project flowsheets
- How process optimisation can improve the bottom line
- Geometallurgy: increasing orebody value
- Plant benchmarking: an opportunity for sustained efficiency
- In situ leaching or in situ recovery
- Leach circuit design principles
- Yellowknife gold project
- Cyanide destruction
- Exploration Geology
- Exploration for mineral deposits – global trends
- Indonesia – exploration on the cusp of development
- Structural geology collaboration results in new find for Sumitomo
- Providing expert advice to the Canahuire project in southern Peru
- Ground based geophysics
- Rapid assessment of structural geometries for brownfield targeting, Burkina Faso
- Target generation and grassroots exploration in Mauritania
- Evolution of SRK ES
- Applying conceptual geometrical models in evaluating mineral prospects
- Excalibur 3D targeting
- Maximising drilling to define the mineral resource at the Nkout Iron Ore project
- Deciphering structural controls in a greenstone belt in Ghana
- Project diversity and foreign interest spur SRK India’s growth and success
- Integrating structural geology for improved resource modelling
- Effective geological training and data management
- Exploring for specialty metals in Greenland
- Advanced exploration targeting: SRK’s approach
- Cheap and dirty, but essential: geological/structural mapping
- Overview of uranium exploration and the nuclear industry in Argentina
- New life for an old mine – Carmen, Chile
- Applying the box plot method
- The future of 3D modelling in consulting
- Mine Water Management
- Our perspective
- Drainage measures for ensuring the stability of the proposed cutback at Ok Tedi mine
- Designing field programs to maximise the capture of groundwater data
- Changing climate affects mine planning in South Africa
- Managing salt levels in mine water
- Water control evaluation for an iron ore project in Australia
- Collecting 3D data for dewatering of an underground uranium mine in Canada
- Hydrogeologic challenges for data collection in the field
- Impact of quarry deepening on local groundwater users
- Applying numerical groundwater modelling for mine dewatering projects around the world
- Early stage hydrogeological assessments in Central and West Africa
- Inflow water quality - Hope Bay, Nunavut
- Surface water management in the jungle of Brazil
- Mine water supply in the Middle East
- Water and chemical load balance for an underground mine in New Mexico
- Water management for closure, Nevada
- Source water protection planning
- Integrated geotechnical-hydrogeological field investigations in Sweden
- In-pit mine water control at the Grib mine in Russia
- Acid and metalliferous drainage
- Water-related environmental studies for a coal mine project in Chilean Patagonia
- Water supply: an increasing challenge in Chilean mining
- Mine water management with GoldSim in Indonesia
- Stormwater control on mines
- Managing sulfate impacts on water quality
- Integrated mine water management
- Facility Closure
- Mine and facility closure trends
- Closure of Mining Pond B at Richards Bay Minerals, South Africa
- What goes up…
- From abandoned site to community asset
- Closure north of 66°
- Land rehabilitation requirements and practices in Russia
- Using ecological risk assessment to establish closure criteria
- Rehabilitation and construction issues for Silvermines, Ireland
- A risk-based approach to tailings facility closure
- San Manuel, Arizona: from mining to reclamation
- Mine closure planning in the Chinese mining industry
- Demolition costing
- Mine closure regulation in Turkey
- Capital expenditure to reduce long term closure liability
- Reducing economic impacts from interim closure
- Soil covers for cold region mine closures
- How did the International Cyanide Code get started?
- Closure planning to comply with the International Cyanide Code
- Engineering solution to save Pacific salmon in the Tsolum River
- Using abandoned mines as field laboratories
- The Environmental Management Plan and closure planning
- Closure cost confusion
- Tailings, Heap Leach and Waste
- Anglo Platinum, Mogalakwena
- Challenges of tailings disposal in Russia and CIS countries
- Esperanza thickened tailings project
- Seepage control at the Colomac tailing containment area
- SRK leads investigation of very coarse granular materials
- Constructing water balance models using GoldSim™
- Solutions to reduce infiltration
- Penstock decant system for large tailings dams
- Numerical modelling of mineral sands
- Giroux Wash tailings impoundment
- Long term stockpiling of copper ore at Batu Hijau Mine
- Process pond modifications to mitigate groundwater elevation increase
- Tailings storage facility expansion
- Solid waste landfills
- Experience gained from tailings dam audits
- Synthetic liner pipe penetration
- New tailings impoundment feasibility design in Senegal
- Benefits of designing for closure in Nevada
- Rocks & Slope Stability
- International slope stability research
- Geotechnical characterisation
- Risk aware!!!
- 3D modelling structurally controlled weak rock masses using blockiness
- Estimating rock mass strength
- Itabirite iron ore bodies: Generic geotechnical models
- Safe and rapid development for major underground mines: Trends for the future
- Mining challenges in permafrost environments
- Shea Creek uranium project
- Integrating structural geology and geotechnics, Los Caracoles Dam
- Use of photogrammetric mapping techniques for slope stability
- Assessing geotechnical management using the Ground Blockiness Index (GBI)
- UDEC modelling
- Antamina geological modelling, Peru
- Koidu vertical pit, Sierra Leone
- Numerical analyses for evaluating pit wall and underground stability at Ok Tedi
- Blasting program optimises pit slope performance
- Economic success in underground soft rock mining
- Probabilistic stability analysis for pit slope optimisation at Jwaneng diamond mine, Botswana
- Geotechnical design considerations for mine shafts
- Geotechnical investigation for Kwatebala copper open pit, DRC
- Auditing the ground control management plan
- Rapid characterisation of slope instability using LiDAR
- Slope stability – fundamental concepts
- Weathered rock masses
- Slope design in challenging conditions at El Teniente, Chile
- Integrating structural geology and geotechnics at Venetia diamond mine
- Mining Project Evaluations
- Santa Rita project financing
- Due diligence study on a complex mining operation in Southern Africa
- Mining project evaluation in Brazil
- Environment and closure due diligence
- Palladon’s Iron Mountain project, Utah
- Technical review of a polymetallic project in East Africa
- A geological risk approach to valuing early-stage exploration projects
- Trekkopje
- Partnering with Polymetal: from IPOs to Compliance Audits for ongoing reporting
- Project evaluation course
- Due diligence in coal – do SRK clients get good value for their money?
- Re-evaluation of the base and precious metal potential south of the Kalimantan Arc
- Red Mountain gold project located in British Columbia, Canada
- El Chanate gold project, Mexico
- Independent review of world-wide exploration portfolio
- Marwa Wahau coal project–preliminary feasibility study
- Talvivaara
- SRK involvement
- Capstone Mining Corp’s Minto Mine
- Taking a holistic view in mining reviews and audits
- Growing up with a gold mine – SRK’s multi-level project support at Hycroft
- Site visit could be critical for identifying the potential fatal flaws
- Evaluating CIS projects
- Sino Gold
- Geology beyond the resource
- Kinsevere Copper Project: due diligence in the DRC
- Social Assessment, Engagement and Advice
- Big five - Tough social issues in mining
- Consultation towards a social license
- Strategies large-scale mining operations may employ in dealing with artisanal mining
- Value added through understanding the local social issues
- Tracking local skills in support of a commitment to employ locally
- Calculating resettlement costs
- The U.S. National Environmental Policy Act and Native Americans
- Stakeholder engagement: A key ingredient for project success
- Community input into Red Dog mine closure plan
- Recent SRK experiences with stakeholder engagement processes
- Stakeholders strengthen pipeline EIA
- SRK adds socio-economic value to project investments
- UK partners building skills in South African water sector
- Building early community relationships
- Enhanced social impact management
- Consultation for a major Bauxite project in Suriname, South America
- Environmental Process
- Integrating Environmental Assessment into Project Development Studies
- Challenges of Merging International and Local Requirements in Russia
- ESIAs for Marine Works
- Process for Implementing Environmental Management Systems in Chile
- SRK on the Leading Edge of Biodiversity
- Case Study from the Land Use Planning Sector, in Nelson Mandela Bay, South Africa
- Application of GIS in the EIA Process
- ESIA and Risk Assessment
- Assessing GHGs and Global Climate Change in EIAs
- Environmental and Safety Management Systems
- Influencing Sustainable Development Policy and Strategy in South Africa
- Suriname River Dredging Project
- Key International Initiatives Influencing Approaches to ESIA
- Promoting Compliance in Non-Compliant Markets – A Chinese Perspective
- Corporate Sustainability in a Carbon-Constrained Economy
- Focus on Uranium
- Trekkopje Definitive Feasibility Study
- Trekkopje Client Focus
- The Napperby Project in Australia
- Gamma Probe eU Data QA-QC Procedures
- Mineralogy Matters
- Grass Roots Uranium Exploration in Argentina
- Developing Uranium Processing Expertise
- Underground Uranium Scoping Study
- Uranium Exploration: the SRK Exploration Perspective
- In-Situ Recovery
- Institutional Controls on Radioactive Mine Wastes
- SOMAIR Uranium Mine Heap Leach Pad
- Pele Mountain Resources at the Elliot Lake Project
- Using JORC and CIM Guidelines for Uranium Resource Estimation
- Mineral Processing Overview
- Re-engineering the Elkon Deposit
- Characterizing the Long-term Stability and Porewater Quality of Uranium Mine Tailings
- Letlhakane Uranium Project, Botswana
- Kuriskova Uranium Project, Slovakia
- Focus on Coal
- Added Value to an Indonesian Client
- Exploration and GIS
- Griffin Coal – Geological Modeling and Resource Estimation
- Caledon’s Revolutionary Cook Colliery
- Coal Mine Dewatering
- Greenfields Coal Exploration in Southern Africa
- The Coal Team in South Africa
- Mining Prefeasibility Study for Morupule Power Station, Botswana
- Mine Planning Software in the Coal Sector
- Using Magnetic and Gravity Data in Basin and Coal-related Geology Studies
- Enterprise Risk Management at Work
- Bringing Coal Basins into Focus
- Relating Resource and Reserve Assessments to International Code Standards
- Managing Risks to Safety, Health, Environment and Sustainable Development Effectively
- Assisting an Emerging Coal Producer in Colombia
- The Russian Coal Industry
- Iron Ore
- Improving Performance through Benchmarking
- Interest in Chile’s Iron Deposits Renewed with Application of Modern Exploration Techniques
- Iron Rush
- Mining Scheduling with Geopit
- Due Diligence Review on Iron Ore Projects in China
- The Balla Balla Iron Ore Project
- SRK’s Involvement in Simandou
- Improved Water Consumption at the Sishen TSF Complex
- Iron Mineral Deposits and Projects in People’s Republic of China
- Iron Ore Prospecting in the Palaeoproterozoic Earaheedy Basin
- Cerro Nahuatl Iron Ore Mine in Colima, Mexico – A Conceptual Closure Plan
- Iron Ore exploration in South India
- Ferrexpo Poltava GOK
- Evaluating MHAG Brazil’s Mina do Bonito Operation for Noble
- Ferrexpo
- Technical Reports for Corumbá 43-101
- Focus on Geology
- SRK Structural Interpretation Assists Glencar’s Gold Discovery in Mali
- Mapping and Sampling Massive Sulfide Deposits on the Seafloor
- Probabilistic Targeting for Mesothermal Gold Mineralisation
- The Role of Remobilisation in the Formation of Nickel Sulfide Orebodies
- 3D Structural Mapping of Gold Continuity, Venezuela
- SRK’s Involvement in the DRC
- SRK Structural Modeling of the Kumtor Gold Deposit
- 3D Modeling of Structural Domains in Western Africa for Gold Fields
- Importance of Kimberlite Pipe Geometry and Kimberlite Emplacement Model
- JORC and the Chinese Resource Classification System – An SRK View
- Optimising Risk Assessment in Coal and Energy-rich Sedimentary Basins
- SRK Exploration Services – Optimistic Beginnings
- Dar es Salaam Office
- Significance of Structural Architecture in Controlling Mineralisation
- Valuation of Exploration Properties
- 3D Visualisation Techniques: New Advances and Applications
- Structural Controls on Kimberlite Geometry and Emplacement
- Building Geological Expertise for Clients in Chile
- Generating 4D Geological Maps from Regional Geophysics
- Independent Technical Reports: Adding Value
- SRK’s New Office in Kolkata
- Optimising Field Investigations
- 3D Structural Geology Modeling, Peru
- Waste Geochemistry
- Are your environmental data defensible?
- Improve reliability of post-closure water quality predictions
- New porphyry copper mine approval
- South America: Offices bring full power of SRK to their clients’ door
- Solving mining challenges in Africa & the Middle East
- In Memoriam: Ingrid Rozas Valenzuela
- The United Kingdom has thousands of abandoned metal mines
- Selective handling of wastes can reduce future treatment costs
- SRK expands its geochemical services in Australia
- SRK 30th Anniversary
Uranium Exploration: the SRK Exploration Perspective

Since 2005 SRK Exploration Services (SRKES) has been a global player in project origination, appraisal and management for uranium exploration. The team has worked on 10 of the 12 major deposit classes and was one of the pioneers at resurrecting interest in the exploration of Saharan Africa. Back in 2005, in a bid to re-evaluate prospects in the context of modern methods and a burgeoning new market, the team visited the Ministries of Mines in Niger and in Mali, and dusted off historic reports detailing the work that had been done in the 1970s by the Japanese and French. SRKES ran a number of reconnaissance missions and identified a small surface resource in northern Mali on behalf of a client.
Northeast Mali represents a near mirror image of the geological situation of the famous Arlit uranium deposits of northern Niger. The French company, AREVA, is actively mining through its interests in the Arlit open pit and Akouta underground mine. In 2007, production in Niger had a total output of 3,720 tonnes or 8.2 million pounds of U3O8. Here, the sandstone-hosted uranium resources are all contained in the sediments of the Tim Mersoi basin, which lies on the western flank of the igneous complex constituting the Air Massif. In Mali, the intrusive and volcanic centre is that of the Adrar des Iforas, and the potential host rocks are the sandstones, conglomerates and phosphate deposits of the Tilemsi Basin.
Elsewhere in Africa, SRKES implemented and managed two successful uranium drilling projects in Cameroon and Madagascar. While one project has been sold to a major, the other is ongoing and continues to provide exciting results.
In South America, SRKES set up and managed a large ground survey exploration program in Colombia, a project with also caught the eye of a uranium major.
In Central Asia, the company has been active in the due diligence of 8 concessions in the CIS, including sites adjacent to the historic Marly Su mines of Kyrgyzstan (where the British allegedly mined uranium in the 1940s), and in evaluating the potential of the former underground mines of northern Kazakhstan.
More recently, SRKES has been involved in evaluating the exploration and mining sector on behalf of financial institutions and fund managers interested in taking advantage of the potential undervaluation of many players, which has resulted from the current economic slowdown and uncertainty.
One such study, a comparable transaction analysis of uranium properties, looked at some 140 transactions that occurred over the period 2007-08 when projects changed hands for sums up to half a billion dollars. This flurry of activity was spurred on by the uranium pricing peak of July 2007, when U3O8 spot prices hit US$136/lb. This level was, in fact, the highest the yellow commodity has achieved, the last great spike in pricing occurred at the end of the 1970s when prices reached US$43/lb. Adjusting for inflation, this was equivalent to almost US$115/lb in terms of 2007 dollars.
Whilst much of the speculative action and ‘re-flogging of dead horses’ that occurred during the price build-up and over the price spike have died away, there is still a strong core of investors following the commodity. The current, relatively-low spot price has little bearing on miners or near-term producers, who will have secure future sales and price contracts with their electricity-generating customers. The longer-term exploration outlook is good, with a projected shortfall in production versus demand, against a backdrop of 44 nuclear power stations currently under construction and over 370 planned or proposed globally.
Nick O’Reilly: noreilly@srkexploration.com
Northeast Mali represents a near mirror image of the geological situation of the famous Arlit uranium deposits of northern Niger. The French company, AREVA, is actively mining through its interests in the Arlit open pit and Akouta underground mine. In 2007, production in Niger had a total output of 3,720 tonnes or 8.2 million pounds of U3O8. Here, the sandstone-hosted uranium resources are all contained in the sediments of the Tim Mersoi basin, which lies on the western flank of the igneous complex constituting the Air Massif. In Mali, the intrusive and volcanic centre is that of the Adrar des Iforas, and the potential host rocks are the sandstones, conglomerates and phosphate deposits of the Tilemsi Basin.
Elsewhere in Africa, SRKES implemented and managed two successful uranium drilling projects in Cameroon and Madagascar. While one project has been sold to a major, the other is ongoing and continues to provide exciting results.
In South America, SRKES set up and managed a large ground survey exploration program in Colombia, a project with also caught the eye of a uranium major.
In Central Asia, the company has been active in the due diligence of 8 concessions in the CIS, including sites adjacent to the historic Marly Su mines of Kyrgyzstan (where the British allegedly mined uranium in the 1940s), and in evaluating the potential of the former underground mines of northern Kazakhstan.
More recently, SRKES has been involved in evaluating the exploration and mining sector on behalf of financial institutions and fund managers interested in taking advantage of the potential undervaluation of many players, which has resulted from the current economic slowdown and uncertainty.
One such study, a comparable transaction analysis of uranium properties, looked at some 140 transactions that occurred over the period 2007-08 when projects changed hands for sums up to half a billion dollars. This flurry of activity was spurred on by the uranium pricing peak of July 2007, when U3O8 spot prices hit US$136/lb. This level was, in fact, the highest the yellow commodity has achieved, the last great spike in pricing occurred at the end of the 1970s when prices reached US$43/lb. Adjusting for inflation, this was equivalent to almost US$115/lb in terms of 2007 dollars.
Whilst much of the speculative action and ‘re-flogging of dead horses’ that occurred during the price build-up and over the price spike have died away, there is still a strong core of investors following the commodity. The current, relatively-low spot price has little bearing on miners or near-term producers, who will have secure future sales and price contracts with their electricity-generating customers. The longer-term exploration outlook is good, with a projected shortfall in production versus demand, against a backdrop of 44 nuclear power stations currently under construction and over 370 planned or proposed globally.
Nick O’Reilly: noreilly@srkexploration.com
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