Gamma-ray Spectrometry
Applications in Mineral Exploration
- Locate and validate airborne anomalies.
- Prospect for uranium.
- Map trace elements associated with rare earth elements (REE).
- Delineate kimberlite pipes.
- Geological mapping of lithology.
- Structural mapping: faults, fractures, shear zones, folds, etc.
Types
Ground and Borehole
Equipement
Portable spectrometer with gamma-ray detection, model GRS-2 from Pico Envirotec. Equipped with a GPS receiver and a pocket computer to facilitate data acquisition and processing.
Survey
Survey data and position are recorded in real time; traverses can, therefore, be surveyed in continuous or stationary mode.
In borehole Gamma-Ray Spectrometry:
- Natural gamma-ray (total count).
- Spectral gamma-ray.
- May be combined with other sensors.
See more information under "Borehole Logging Services".
Supplied Products
Maps of the following elements, or ratios between these elements:
- Potassium, K (%)
- Equivalent uranium, eU (ppm)
- Equivalent thorium, eTh (ppm)
- Total rate of absorption or total radioactivity (nGy/h)
- Ratios (eU/eTh, eU/K, and eTh/K)
A chart combining the three principal radioactive elements (K, eU and eTh) can also be calculated to represent a ternary image distribution from these radioactive elements.
Visit our Case Study Tool to see what SPECTROMETRY has done for other discoveries.

