Different measurements.
A more complete understanding.
Each tool answers a different question. Explore ten detailed guides to understand what we measure, where it helps, how the work is done and what you receive.
Our work includes reviewing public information, evaluating and brokering licensed data, obtaining targeted new measurements, and interpreting everything together. The proposal distinguishes Dwell fieldwork from specialist acquisition and existing-data interpretation.
Ground MT, AMT and TDEM sit at the core of our electrical investigations. Complementary methods are selected around your geology and decision. Drone surface mapping is distinct from airborne geophysics; Dwell does not acquire airborne MT.
Magnetotellurics
MT listens to naturally occurring electrical and magnetic signals to help build a picture of the rocks below. It is especially useful when your question extends well beneath the surface.
Read the full guide ↗02 / AMTAudio-magnetotellurics
AMT is part of the MT family. It focuses on faster natural signals, often making it useful for investigating shallower geological detail alongside a deeper MT study.
Read the full guide ↗03 / TDEM / TEMTime-domain electromagnetics
TDEM sends a brief electromagnetic signal into the ground and measures how the response fades. The pattern helps us investigate electrically conductive layers and bodies.
Read the full guide ↗04 / GravityGravity surveying
Gravity surveys measure tiny differences in gravitational pull. These differences can help reveal how denser and less-dense rocks are arranged beneath the landscape.
Read the full guide ↗05 / MagneticsMagnetic surveying
Magnetic data reveal variations in the Earth’s magnetic field caused by magnetized rocks. Those patterns can help trace geological units and structures that are hidden at the surface.
Read the full guide ↗06 / GradiometryGravity & magnetic gradiometry
Gradiometry examines spatial changes in gravity or magnetic fields. It can help emphasize boundaries and smaller features, adding detail to the interpretation of conventional field measurements.
Read the full guide ↗07 / RadiometricsGamma-ray spectrometry
Radiometrics measures naturally emitted gamma radiation. It helps characterize the near-surface distribution of potassium, uranium and thorium, adding useful context to geological mapping.
Read the full guide ↗08 / Seismic + wellsSeismic & well-data integration
Existing seismic and well records can be among the most valuable starting points for a project. We connect them with geology and geophysics to build an interpretation that can be checked against real observations.
Read the full guide ↗09 / Surface mappingDrone mapping & topography
A subsurface model becomes more useful when it is accurately connected to the land above it. Drone imagery, terrain models and field verification help establish that connection.
Read the full guide ↗10 / Integrated modelling3D modelling & supercomputing
Dwell uses high-performance computing to process large datasets and run demanding three-dimensional models. The aim is a clearer, testable explanation of the subsurface that supports your next decision.
Read the full guide ↗Start with the missing evidence.
| Your question | Useful starting evidence | What still needs checking |
|---|---|---|
| Where might deeper structures lie? | MT, gravity, magnetics, wells and seismic | Alternative geological explanations and resolution |
| What changes at shallower depth? | AMT, TDEM and local geological observations | Clay, salinity, noise and target size |
| What is exposed at the surface? | Radiometrics, mapping, sampling and terrain | Cover, weathering and transported material |
| Where could a project develop? | Integrated models, surface mapping and direct tests | Engineering, environment, access and economics |
Start with a question.
Leave with a direction.
Our preliminary tabletop consultation helps define the focus before you commit to a larger programme.