Volume XLI-B7
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B7, 991-993, 2016
https://doi.org/10.5194/isprs-archives-XLI-B7-991-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B7, 991-993, 2016
https://doi.org/10.5194/isprs-archives-XLI-B7-991-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

  14 Oct 2016

14 Oct 2016

MINERALOGICAL MAPPING IN THE PART OF A GOLD PROSPECT USING EO-1 HYPERION DATA

V. K. Sengar1, A. S. Venkatesh2, P. K. Champaty Ray1, S. L. Chattoraj1, and R. U. Sharma1 V. K. Sengar et al.
  • 1Indian Institute of Remote Sensing, Dehradun, 248 001, India
  • 2Indian School of Mines, Dhanbad, Jharkhand, 826004, India

Keywords: EO-1Hyperion data, Mineral end member extraction, SAM classification, Spectra matching

Abstract. The satellite data obtained from various airborne as well as space-borne Hyperspectral sensors, often termed as imaging spectrometers, have great potential to map the mineral abundant regions. Narrow contiguous bands with high spectral resolution of imaging spectrometers provide continuous reflectance spectra for different Earth surface materials. Detailed analysis of resultant reflectance spectra, derived through processing of hyperspectral data, helps in identification of minerals on the basis of their reflectance characteristics. EO-1 Hyperion sensor contains 196 unique channels out of 242 bands (L1R product) covering 0.4–2.5 μm range has also been proved significant in the field of spaceborne mineral potential mapping.

Present study involves the processing of EO-1 Hyperion image to extract the mineral end members for a part of a gold prospect region. Mineral map has been generated using spectral angle mapper (SAM) method of image classification while spectral matching has been done using spectral analyst tool in ENVI. Resultant end members found in this study belong to the group of minerals constituting the rocks serving as host for the gold mineralisation in the study area.