Determination of an exploration model for bauxite using GIS exploration data in Jajarm area

Document Type : research - paper

Authors

Lecturer at Shahrood University

Abstract

 
Integration of various exploration data (geology, remote sensing, geophysics, geochemistry, drilling and so on) is important in accurate recognition of mineral deposits. The aim of this research is the processing and interpretation of geological, remote sensing and geophysical data in Jajarm bauxite mining area, and then, the integration of the results of these exploration data in geographic information system (GIS) for mineral potential mapping of the area. The processing and interpretation of remote sensing and geophysical data in the study area were separately carried out, and as such, produced separated results, in which particular zones suggested as anomalous zones, were obtained from each set of the data. In the carried out remote sensing studies, band ratio method for recognition of dolomite and silica rocks in the area was used. The geophysical data in the study area comprised of 82 electrical soundings on 3 lines with 25 m spacing between successive sounding points and 10 m spacing between successive lines. After making one-dimensional modelling of the sounding data, a three-dimensional model from one-dimensional modelling results was developed using Rock Work software. Finally, information layers, obtained from the processing and interpretation results of exploration data sets, were integrated using fuzzy logic method (gamma operator) in GIS. The obtained mineral potential maps of the area suggested the zones having higher fuzzy values as exploration promising mineralization zones in the study area.

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References

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History

  • Receive Date: 15 February 2014
  • Revise Date: 06 September 2015
  • Accept Date: 14 September 2015

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