Northern Geoscience is run by an exploration geophysicist and economic geologist. We see your airborne magnetic data for what matters to mineral exploration: the rocks, the structures that control mineralization, the alteration around it, and where to explore next.
For junior explorers through to major mining companies.
From a junior's first property to a major's district, most exploration budgets already include an airborne survey. We make sure that aeromagnetic data gets read by an exploration geophysicist with an economic geologist's eye for what to look for, and that the result is a geological map and target list your team can plan from.
Lithology, including intrusive units, and lithological domains, structural framework and alteration zones, interpreted by hand from aeromagnetic data. Includes magnetic derivatives, lineaments and magnetic domains.
Learn more →Data-driven mineral potential maps built with statistical and machine learning models from geophysical and geochemical data, tested against known mineralization, with a ranked list of exploration targets. Includes magnetic derivatives, lineaments and magnetic domains.
Learn more →A structural framework from the magnetic data ahead of a field season or land decision: tilt-derivative lineaments, density and orientation grids, magnetic domains, and magnetic derivatives including reduced-to-pole (RTP), first vertical derivative and PCA bands. These are magnetic domains and lineaments from the data, not interpreted ones.
Learn more →Digitizing and standardizing geology maps, compiling public and company data into a project GIS database, and land package and market research.
Learn more →The same geological read of the magnetics answers different questions at each stage, from extending a known deposit to choosing ground no one has drilled.
Map the structures and host units that control a known deposit, then trace them under cover to find extensions and repeats close to existing infrastructure.
Follow the mineralizing system across the district: along-trend structures, favourable stratigraphy and alteration footprints between known showings and past producers.
Build a geological map of covered or poorly exposed ground, and use prospectivity mapping for target generation, ranking land packages and focusing early field programs.
Under till, forest, sand or younger basin cover, outcrop control is sparse and biased toward resistant units. Magnetic susceptibility contrasts carry through that cover. A careful interpretation separates lithologies by magnetic intensity and texture, traces faults, shear zones and folds from offsets, truncations and fabric, and maps intrusions and the magnetite-destructive or magnetite-additive alteration that so often marks the footprint of a mineral system. Mapped geology is a guide, not a constraint: the data speaks for itself, and the result shows where to look next, and why.
Airborne coverage samples the whole land package, so the interpretation carries one legend from district to claim scale, without the gaps and sampling bias of ground mapping. Where coverage comes from several surveys flown over many years at different line spacings and heights, the interpretation is built across them, with each area mapped to the resolution its data supports. Lithological contacts, the structural framework and alteration are mapped at a scale that supports follow-up planning, so field time and exploration spend go where the map says they matter. It works on new high-resolution surveys and on legacy company and government data that may already cover your ground.
Interpretation and prospectivity mapping can run together or on their own. Both start with the same magnetic derivatives, lineaments and domains, and both run on our own in-house software, custom-made for a geophysical exploration pipeline.
We gather your airborne surveys, government data, geology maps, drilling and geochemistry into one clean project database.
Magnetic data from original or past surveys is stitched together and turned into derivatives and tilt-derivative lineaments.
A geologist maps lithology, structure, intrusions and alteration by hand, over several iterations, until the map fits both the geology and the data.
Evidence layers are tested against known mineralization and combined into prospectivity maps and a ranked list of exploration targets.
Our interpretation work spans the major exploration belts of North and South America.
