Mineral exploration field services are the on-the-ground activities carried out to collect, document, and process geological data from a target area. They cover everything from initial site surveys and drilling support to core logging, sample processing, and geophysical measurements. Any company running an exploration project relies on field services to turn raw ground into actionable data.
Field services are relevant to junior explorers, major mining companies, and infrastructure developers alike. The quality of your fieldwork directly shapes the reliability of your resource estimates and project decisions. The sections below unpack the most common questions teams ask when planning or reviewing their exploration field operations.
What activities does mineral exploration field work include?
Mineral exploration field work includes geological mapping, geophysical surveys, drilling, core and chip sample collection, sample processing, and on-site documentation. These activities generate the primary data that geologists use to identify, define, and evaluate mineral deposits. Field work is typically the most time-intensive and logistically demanding part of any exploration program.
In practice, field work breaks down into several overlapping phases. During early-stage exploration, teams focus on surface mapping, rock and soil sampling, and remote sensing interpretation. As a target becomes more defined, drilling moves to the centre of operations, supported by geophysical surveys such as ground magnetics or induced polarisation.
Once drilling is underway, the field work shifts toward core recovery, logging, and sample preparation. This includes splitting or sawing core, labelling intervals, photographing samples, and dispatching them to an accredited laboratory. Throughout all phases, accurate field records are non-negotiable. Errors in sample numbering, interval depths, or geological descriptions at this stage are difficult to correct later and can compromise the entire dataset.
How does core logging fit into field services?
Core logging is the systematic recording of geological, geotechnical, and mineralogical information from drill core. It sits at the heart of exploration field services because it transforms recovered rock into a structured dataset. Without thorough core logging, the results of a drilling program have limited value for resource estimation or mine planning.
A geologist carrying out core logging records features such as rock type, mineralisation, alteration, structure, fracturing, and recovery. This information is entered into a logging database, often linked directly to assay results and downhole survey data. Good logging practice also includes systematic photography of core trays before and after sampling.
The physical environment where logging takes place matters more than many teams initially realise. A well-designed logging facility with purpose-built equipment speeds up the workflow, reduces errors, and protects both the core and the people working with it. Ergonomics, lighting, and the layout of logging tables all affect the consistency and quality of the data being recorded.
What is the difference between in-house and outsourced field services?
In-house field services mean a company employs its own geologists, technicians, and field crew, and owns or leases the equipment and facilities needed to run exploration programs. Outsourced field services mean engaging a specialist provider to supply personnel, methods, equipment, and facilities as a service. The right choice depends on the scale, duration, and frequency of your exploration activity.
Running field services in-house gives you direct control over personnel and data management. For companies with continuous, long-term programs, building internal capacity can be cost-effective over time. However, it requires significant upfront investment in equipment, training, and logistics infrastructure, along with the ongoing overhead of maintaining that capacity between active drilling campaigns.
Outsourcing is often more practical for companies running shorter or irregular programs. You access experienced personnel and ready-to-use facilities without carrying the fixed costs when a project is between phases. It also allows you to scale up quickly when a new target requires intensive work, without the delays of recruiting and equipping a new team from scratch.
Who carries out field services on an exploration project?
Field services on an exploration project are carried out by a combination of geologists, geological technicians, drillers, and field assistants. The specific roles depend on the phase of the project and the type of work being done. On most active drilling programs, a qualified geologist leads the technical work while technicians handle sample processing and logistical support.
The geologist on site is responsible for core logging, geological interpretation, and ensuring that sampling protocols are followed correctly. They also liaise with the drilling contractor to manage core recovery, adjust drilling parameters, and document any downhole issues. This role requires both technical knowledge and practical field experience.
Geological technicians support the geologist by preparing and processing samples, managing core storage, maintaining field records, and coordinating sample dispatch. On larger programs, dedicated field coordinators or project geologists oversee multiple drill holes or survey areas simultaneously, ensuring consistency across the dataset.
What equipment and facilities are needed for mineral exploration field services?
Mineral exploration field services require drilling equipment, core trays and storage racks, logging tables, photography systems, sample splitting and labelling tools, and secure facilities for core storage and processing. The specific equipment list varies by project type, but the logging facility is the operational hub where most of the data work takes place.
A functional logging facility needs adequate space for core tray handling, good lighting for visual inspection, and purpose-built logging tables that allow geologists to work comfortably over extended periods. Adjustable, inclined roller tables are widely used because they let you position core at the right angle and height for close inspection without repeated lifting. Electrically adjustable logging tables take this further by allowing smooth height changes at the touch of a button, which reduces physical strain during long logging shifts.
Ball bearing tables are another practical option, allowing core trays to be moved along the table surface with minimal effort. Specialised components such as an orientation rack with secure positioning mechanisms and integrated photography systems for sample documentation help standardise the logging workflow and reduce the time spent on repetitive tasks.
Beyond the tables themselves, a well-planned logging facility integrates laptop desks, adequate power and data connections, and clear workflow routing so that core moves efficiently from intake through logging to dispatch. The durability of the materials used in logging tables matters here too, since these surfaces are subject to constant use and need to maintain a stable, clean working surface over time. You can learn more about our geological and exploration field services to see how these facilities come together in practice.
When should a mining company use a full-service exploration provider?
A mining company should use a full-service exploration provider when it needs to move quickly on a project without the time or capital to build internal capacity, or when the program is too short to justify owning and maintaining equipment and employing a full team. Full-service providers are also useful when a project requires specialist expertise that the company does not have in-house.
Companies entering a new jurisdiction, testing an early-stage target, or running a one-off infill drilling campaign are good candidates for a full-service approach. Rather than recruiting staff, sourcing equipment, and setting up logistics from scratch, you engage a provider who brings all of that together under one arrangement. This keeps your focus on the geology and the investment decision rather than the operational detail.
For infrastructure developers who need geological services for ground investigations or site assessments, a full-service provider offers the same advantages. The work may be shorter in duration than a mining exploration program, making it even less practical to build internal capability for it.
At Palsatech, we offer exactly this kind of integrated support. Our geological and field services, sample processing, and logging facilities are available as a complete package, so you get the expertise, equipment, and space you need without building it yourself. Whether you need short-term support for a single drilling campaign or longer-term involvement across a multi-phase project, get in touch with our exploration team and we are ready to step in and get to work.