Geologic


The earliest and foremost application of hyperspectral imaging is to locate minerals that are exposed or weathered in areas of residual soil. SpecTIR provides discrete mineral mapping for exploration clients in the mining, oil/gas and geothermal sectors. We provide our geologic clients an end to end solution for identifying mineralogy over large and often remote and inaccessible parts of the globe. Indicator minerals associated with epithermal alterations, such as buddingtonite, montmorillonite alunite, kaolinite, dickite, pyrophyllite, gypsum, opal, illite, and muscovite are mapped with high spatial and spectral accuracy. Hyperspectral data can then be fused with other remote sensing and geophysical data such as LIDAR, air-mag, seismic, core logging and ultimately integrated into a Geospatial data base to provide a highly characterized visualization of the surface and subsurface area of interest.


Sample Applications

Mineral Mapping of Cuprite, NV

Mineral mapping is the bread and butter of airborne hyperspectral imagery. Cuprite is the testing ground for spectral sensors due to the diversity of exposed minerals. An interesting outcome of this classification is the discovery of a zone of buddingtonite at the small cluster of pixels shown. Other showings, some of a single putative buddingtonite pixel, include such a pixel in the drainage west of the main outcrop.


Sample Applications

Hyperspectral and Geophysical Data Integration

Hyperspectral data overlaid on an aeromagnetic survey map provides a highly characterized visualization of the surface geology in Virginia City, NV


Sample Applications

Geothermal Mapping

Pictured are subtle geothermal related alterations of associated minerals such as Illites.


Geologic Related Documents

Columbus Marsh Abstract [pdf]
ProSpecTIR/SEBASS Collection [pdf]
Hydrocarbon Detection Example 1 (Katrina) [pdf]
Trinity Minewall [pdf]
Cuprite Investigation [pdf]
Mineral Classification [pdf]