Drilling is where exploration capital is made or lost. The goal of a Rosor airborne geophysical survey is to reduce the uncertainty that precedes that commitment, so that when your team drills, it is drilling into targets with strong geophysical justification rather than geological inference alone. Our surveys detect subsurface and surface signatures that guide exploration teams toward mineralization. Magnetic surveys are particularly effective for mapping geological structures such as faults, contacts, and intrusions that control where mineralization occurs, as well as indicator minerals like magnetite, pyrrhotite, and arsenopyrite that are associated with certain ore systems. Radiometric surveys measure gamma radiation from the top layer of exposed bedrock, mapping potassium, uranium, and thorium distributions that reveal rock types and alteration zones at the surface where bedrock is exposed. Electromagnetic surveys detect electrically conductive bodies underground, making them the primary tool for identifying sulphide-bearing zones in base metal systems. By identifying and ranking anomalies based on their geophysical signature and geological context, your team gets a prioritized target list backed by data rather than guesswork. The outcome is a more disciplined drill program, with capital allocated to the intersections most likely to carry grade. Our surveys detect subsurface and surface signatures that guide exploration teams toward mineralization. Magnetic surveys are particularly effective for mapping geological structures such as faults, contacts, and intrusions that control where mineralization occurs, as well as indicator minerals like magnetite, pyrrhotite, and arsenopyrite that are associated with certain ore systems. Radiometric surveys measure gamma radiation from the top layer of exposed bedrock, mapping potassium, uranium, and thorium distributions that reveal rock types and alteration zones at the surface where bedrock is exposed. Electromagnetic surveys detect electrically conductive bodies underground, making them the primary tool for identifying sulphide-bearing zones in base metal systems. By identifying and ranking anomalies based on their geophysical signature and geological context, your team gets a prioritized target list backed by data rather than guesswork. The outcome is a more disciplined drill program, with capital allocated to the intersections most likely to carry grade.

Resolution is key when running a geophysical survey. Geophysical signatures weaken with distance from their source, so a sensor flying close to the ground detects a more detailed signal than one flying at higher altitude. UAV platforms fly lower to the ground, which means the data they collect carries more resolution, sharper anomaly boundaries, and better sensitivity to finer features that manned aircraft surveys would either miss or blur. Beyond data quality, UAV platforms offer practical advantages: faster mobilization for project-scale programs, the ability to survey remote and difficult terrain safely without the risks of low-altitude manned flight, and a significantly smaller environmental footprint with no need for fuel caches, landing infrastructure, or large field crews. For mineral exploration companies running focused property surveys, UAV-based geophysics delivers exploration-grade data with a level of operational flexibility that traditional manned programs were not designed to provide.

Geophysics is not a gold detector. What geophysical methods do detect are the geological structures and anomaly signatures that accompany gold mineralization. The right survey combination depends on the deposit type, but for most gold exploration programs, magnetics and radiometrics together form a powerful and complementary foundation. Magnetic surveys detect highly magnetic indicator minerals that are iron-rich, commonly deposited alongside gold during various deformation stages. They also map structural architectures such as faults, intrusions, and contacts, that controls where mineralization occurs. For orogenic, intrusion-related, and Carlin-type systems, magnetic data is typically the first tool deployed for its versatility. Radiometric surveys map the distribution of potassium, uranium, and thorium isotopes in near-surface rocks. Potassium enrichment is a well-established indicator of hydrothermal alteration in many gold systems. The combination of radiometric and magnetic data allows your geological team to distinguish between rock types and hone in on the alteration envelopes surrounding mineralized zones. For programs where surface mineralogy is a key indicator, particularly in partially exposed or weathered terrains, hyperspectral imaging adds another layer by directly mapping alteration mineral assemblages at high spatial resolution.

Base metal and sulphide-bearing systems have a strong conductivity signatures. Because of this, electromagnetic (EM) surveys are the primary tool for detecting them. Sulphide minerals, including chalcopyrite in copper systems, pentlandite and pyrrhotite in nickel systems, as well as massive sulphide bodies across a range of deposit types are electrically conductive and respond distinctly to electromagnetic signals. Rosor's UAV-based semi-airborne EM systems fly lower and with tighter coverage than traditional manned EM platforms. This improves sensitivity to smaller or deeper conductive targets and allows for better characterization of the geometry and extent of anomalous zones. EM surveys are most powerful when flown alongside magnetic data. The combination allows your geological team to discriminate between different conductive sources, distinguishing economically significant sulphide conductors from graphite or saline groundwater responses that can generate similar EM signatures. For copper porphyry targets specifically, magnetics maps the intrusive architecture while EM detects associated sulphide mineralization, providing a comprehensive picture of the deposit before drilling is done.

Yes. Rosor's platforms are designed to carry multiple sensor payloads simultaneously, and sensor groupings are matched to the flight conditions each method performs best in. LiDAR, photogrammetry, and hyperspectral imaging benefit from being flown at higher altitudes, which allows the drone to cover more ground per day without any meaningful loss in resolution. These sensors are grouped together on the same platform for that reason. Magnetics, radiometrics, and electromagnetics work the opposite way. They benefit from flying as close to the ground as possible to capture the strongest and most detailed signal. These sensors are grouped together on a separate platform optimized for low-altitude collection. This approach means each sensor is always flown at the altitude it performs best at. The datasets are still acquired over the same project area, and your geological team receives a coherent, co-registered package that can be interpreted together from day one. One field mobilization, multiple survey methods, each collected under the conditions that maximize its value.

Rosor supports the full workflow from data acquisition to geophysical interpretation. Raw geophysical data requires significant expertise to process and interpret correctly. The files alone do not tell you where to drill. Our team of geophysicists processes every dataset through a comprehensive quality-assured workflow, applying appropriate filtering, levelling, and enhancement techniques to produce clean, detailed data products. Interpretation then identifies anomalies, characterizes their probable geological origin and structure, and ranks targets by priority. What your team receives is not a folder of files but a complete, decision-ready package: processed data grids, anomaly maps, a survey report documenting acquisition parameters and data processing, and a geological interpretation with prioritized target recommendations and suggested next steps. Rosor is also available after delivery to walk your team through the findings, answer interpretation questions, and support planning for ground follow-up and drilling programs.

Identifying and prioritizing drilling targets is one of the core purposes of a Rosor survey. The geophysical data and interpretation we deliver allows your geological team to rank anomalies by priority, understand their likely geological character and origin, and make defensible decisions about where to focus ground programs and allocate drill metres. A systematic, data-driven approach to target generation reduces exploration risk, improves the probability of intersecting meaningful mineralization, and provides documented justification for the decisions that drive your program forward. For NI 43-101 compliance, Rosor collects and documents geophysical data to professional exploration standards. The data serves as the geophysical component of your technical disclosure and can be incorporated into reports prepared by your qualified person. We recommend aligning your QP with Rosor during survey design so that data collection protocols, documentation, and deliverable formats are structured to meet your specific reporting obligations from the outset.

Yes, and this is one of the most important and frequently misunderstood applications of LiDAR in mineral exploration. LiDAR works by firing an extremely high volume of laser pulses across the survey area. Because so many pulses are fired, some find natural gaps between leaves and branches and reach the ground, bouncing back to the sensor and revealing the true terrain surface beneath vegetation. This is what is meant by vegetation penetration: not that the laser passes through trees, but that enough pulses find gaps to accurately reconstruct the ground level below the canopy. The result is a precise digital terrain model that shows exactly where bedrock is exposed at surface, the rock outcrops your geologists need to physically sample. This is critical for deposit types like lithium pegmatites, certain rare earth element deposits, and other targets that have no meaningful geophysical expression. You cannot find these deposits with a magnetometer or an EM system. But LiDAR can precisely locate where the rocks are outcropping, so your field team knows exactly where to go and what to sample. LiDAR also improves the quality of other geophysical datasets by providing accurate terrain models for topographic corrections, and it supports structural mapping by revealing lineaments, fault traces, and surface geology that are invisible beneath forest cover.

Yes. Several of Rosor's core survey capabilities translate directly into the data needs of pipeline corridor selection, route optimization, and infrastructure siting programs. LiDAR generates high-resolution digital terrain models that form the foundation of route planning work, enabling slope analysis, drainage crossing assessment, and identification of geotechnical hazards such as unstable slopes or karst features. UAV platforms survey long linear corridors efficiently and with minimal ground disturbance, which is particularly valuable in environmentally sensitive areas. Photogrammetry adds a critical visual layer for pipeline programs specifically. By capturing high-resolution, georeferenced orthophotos along a corridor, photogrammetry can document the surface condition of existing pipelines and the ground surrounding them, supporting inspection programs, integrity assessments, and monitoring of changes over time. Magnetic surveys can assist with identifying buried metallic infrastructure, geological faults relevant to engineering assessments, and basement structural features. Hyperspectral imaging supports surface condition mapping and land cover classification along proposed corridors. If you are evaluating UAV-based geophysical or geospatial surveys for an infrastructure or energy sector project, we are happy to discuss how our capabilities apply to your specific program objectives and right-of-way requirements.

Getting started is straightforward. Reach out through the contact form on our website, email us at info@rosor.ca, or call us directly at (905) 401-4257. Our team will follow up to discuss your project and design a survey approach tailored to your exploration objectives. To scope a project accurately, the information that helps us most is: your project location and approximate survey area size; your target minerals and geological objectives; the terrain type and any known access constraints; the survey methods you are considering or interested in; and your program timeline, including any upcoming milestones such as a drill program or reporting deadline. If you have existing geological maps, historical survey data, or drill results, sharing those allows us to design a more targeted program. The more context you provide upfront, the more precise and useful our proposal will be. Every project at Rosor starts with a conversation, and every proposal is built specifically around your exploration goals. There is no off-the-shelf program. We design the survey that fits your project.