Geo Spectra Company, based in Australia, offers cutting-edge spectral remote sensing for regional- and camp-scale mineral/structural mapping and field target generation using medium- to high-resolution multi-hyperspectral satellite imagery data.
Regional Target Generation: we use Aster multispectral and EnMAP/PRISMA hyperspectral imagery to map alteration signatures, including argillic (kaolinite, smectite, illite), advanced argillic (pyrophyllite, alunite), phyllic (muscovite, phengite), propylitic (chlorite, epidote), carbonates, silica and iron oxides, as well as lineament analysis at a 15–30-meter resolution.
Camp-scale Target Generation: We utilise commercial high-resolution multispectral WorldView-3 satellite imagery, additional exploration datasets, and mineral systems to identify favourable minerals and structural controls for further exploration. Both SWIR and VNIR data are used in the SuperCube format, ensuring all spectral bands are co-registered, orthorectified, atmospherically corrected, and resampled to a 1.24m resolution. This approach enables precise high-resolution mapping of alteration minerals (e.g., Li-bearing lepidolite in pegmatite dykes), iron oxides, and structural features, supporting robust target generation for follow-up exploration.
SERVICES
Geo Spectra utilises mineral systems, expert knowledge, and machine learning algorithms to integrate exploration data to generate drilling targets. In the early exploration stages, we use 2D data integration modelling to identify scout drilling targets. In the later stages of exploration, when some drilling is conducted, we incorporate earlier drilling data, along with other exploration proxies, to identify additional optimal directional drillings in a 3D environment using semi-supervised machine learning algorithms to increase tonnage and ore grade. We also apply reserve estimation and modelling after completion of drilling.
