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Reserve Analysis Based on National and International Reporting Standards.

When assessing economically recoverable reserves, operating companies, mineral owners and investors are faced with a multitude of reporting standards. Marshall Miller and Associates dedicates a team of mining engineers, geologists, hydrologists and experts from related disciplines to determine recoverable reserves using the full range of international standards that include JORC, NI 43-101, (CRIRSCO, AIM), and the U.S. SEC Industry Guide 7. Measured, indicated and inferred resources and proven and probable reserves are assessed by MM&A’s team of mining experts. MM&A also advises clients as to which particular reporting standards should be considered according to mineral deposit type, geographic location, and potential investors.

When You Start

Discovering valuable mineral resources, estimating the amount of recoverable deposits and doing so in a safe and cost effective matter comes down to geology.  Marshall Miller and Associates’ stable of geologists, geotechnical engineers, and hydrogeologists – coupled with state-of-the-art technologies and methods – has earned MM&A an industry reputation of excellence for conducting geological investigations that report reliable results through the application of our network-based computer systems to draw correct conclusions.  Our software platform includes Vulcan™, Carlson Mining™, ArcCAD, and ArcView, providing clients with the latest in evaluation technology.  Using these software suites as a start, MM&A has created “value added” proprietary data management programs that deliver output information in multiple formats to guide every step of the mine planning and mineral assets management process.

Mineral Resource and Reserve Estimation

Marshall Miller and Associates resource estimates win high praise within the mining industry because we present complex geological data in well-defined easy to understand formats – technical output that goes beyond “how much, how deep, how hard to find” estimates of mineral deposits. When estimating reserves, MM&A also addresses other geological factors that include quality control, mining conditions, mine safety and scientifically based cause-and- effect relationships unique to each geological formation.  Working as a team, our geologists and geological engineers assess the potential productivity of a mining enterprise and classify reserves based on their economic viability.  Mineral resources and reserves are reported under any of the international standards, such as JORC, NI 43-101, (CRIRSCO, AIM), and the US SEC Industry Guide 7.

Geophysical Logging – A Detailed Record of a Mining Operation

Marshall Miller and Associates understands the importance of a complete and accurate record of any mining operation.  Besides being necessary for permitting, regulatory compliance, environmental reclamation, mine progress and other key concerns, MM&A utilizes fully digital, state-of-the-art equipment for specialized environmental, geotechnical, hydrogeological and coalbed methane applications.  Our array of geological logging equipment includes acoustic televiewers, borehole deviation meters and video cameras, calipers, electromagnetic (EM) flow meters, fluid conductivity and temperature monitors, gamma-gamma density (high resolution or compensated) checks, induction mechanisms, full waveform sonic tools for cement bond logs (CBL) and fluid sampler devices.  MM&A personnel will assess a client’s logging requirements, the logging software suites best suited for the job, gather, organize and store data for later retrieval and use.

Field Exploration

Knowing which minerals, strategic metals, energy resources and other valuable deposits are available at a site begins with the exploration phase of a reserve evaluation that determines the extent of the reserves, the quality of deposits and the physical characteristics a mine will require so deposits can be extracted safely and cost effectively. Marshall Miller and Associates fields teams of highly trained geologists, hydrologists, geological engineers and other experts in related fields who will optimize your exploration plan by generating reliable science-based data to minimize the cost of exploration.  This data will also form the foundation for ongoing reserve estimates and help the client predict mining trends, uncover roof and floor problems, provide samples for mining permits and more.

Geotechnical Evaluation of Roof and Floor Conditions

Understanding how you need to design a mine, build it, maintain it and develop it depends on the delineation of geotechnical factors that impact mining conditions and constitutes a vital part of a comprehensive reserve evaluation plan.  MM&A experts explore the geological and geotechnical complexities of a site, analyze and map the location and achieve all of these tasks after we determine how the rock strata will impact mining conditions and the best approach for mine development.  Following the extraction of rock cores, Marshall Miller and Associates geotechnically logs and photographs them.  Only then can empirical analyses of these samples be conducted including Rock Mass Rating (RMR and CMRR), Rock Quality Designation (RQD), and fracture studies (including average fracture spacing and fracture condition).

About the Author

Marshall Miller & Associates performs a wide range of geological, environmental, hydrogeological and mining engineering services. MM&A’s seasoned staff of engineering personnel delivers design solutions for a variety of projects and industry-specific applications.