Platform technologies
SATELLITE SENSING
Data sources
- Sentinel 1 Synthethic Aperture Radar Imagery
- Sentinel 2 Multispectral Imagery
- Sentinel 3, Sentinel 5P, Landsat 8, MODIS
- Airbus / Plejades Satellite Imagery & DEM
- TerraSAR X Radar Imagery
Applications
Exploration:
Locating new deposits especially in remote areas
Safety:
Ground deformation and slope stability in open pit mines and tailing dams
Environmental footprint:
Changes of ground cover and surface waters
UAV BASED SENSING
Electromagnetic (EM) field measurements
Radai’s novel electromagnetic (EM) measuring system (Louhi) for mineral exploration has been improved and the next version is planned to be put into production next year. Its new functionalities include:
- 400 m long wire laid out as a loop on the ground
- Three frequencies between 1 - 20 kHz
- Total output power 500 W
- Lightweight (1 kg) birdie towed by a drone
- One measurement per second
- PC software for reading the data from the receiver and creating result files
- Real-time measurement is also possible when connected to PC via USB
3D UAV Mapping
Our preliminary UAV supported remote sensing and field mapping of Pesovets volcanic cone outlined the AAA (advanced argillic) and AA (argillic) domains in addition to fault-controlled ring and radial structures in combination with spectral mineral detection methods demonstrate quick approach for mineral exploration area selection and targeting.
Alteration zoning around Pesovets silica cap outlined by UAV survey, field mapping and mineral detection study.
Proximal sensing
GNSS in-mine geolocation system
The GNSS in-mine geolocation system provided by GSN will help to develop the re-user safety within the vast network underground tunnels, to prevent personnel entering banned areas and in case of emergencies to help to locate the person(s) in distress.
Timegated Raman technology
Time-gated Raman spectroscopy produces mineralogical and structural information from minerals and other materials and the measurements can be carried out in a non-contact manner. The aim during the Goldeneye project is to customize a time-gated Raman analyzer and integrate it to a drilling unit. This would enable continuous and near real-time measurements from drilling cuttings, and the measurement results would be sent to the Goldeneye platform where the data could be used to augment and improve the mineral predictive maps produced by the other Goldeneye sensing techniques.
Active hyperspectral technology
Active hyperspectral technology enables early phase mineral mapping in surface and underground mines at any point of Run-Of-Mine. The solution delivers a new modality of ore sorting and unlocks the sustainable and responsible way to mine natural resources. It increases resource recovery and minable tons and reduces the effort of mining companies. The technology combines active supercontinuum laser-based illumination with an advanced hyperspectral data acquisition, thus, allowing for mineralogy mapping from distances up to 15 meters under any ambient light conditions. For example, the technology can perform during the 24/7 operation of surface mines or in the total darkness of underground mines.
