International Journal of Image and Data Fusion, Volume (9), No (3), Year (2018-6) , Pages (1-27)

Title : ( Integration of SPOT-5 and ASTER satellite data for structural tracing and hydrothermal alteration mineral mapping: implications for Cu–Au prospecting )

Authors: REYHANEH AHMADIROUHANI , Mohammad Hassan Karimpour , Behnam Rahimi , Azadeh Malekzadeh Shafaroudi , A. Beiranvand Pour , B. Pradhan ,

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Abstract

The integration of information extracted from the Syste`m Pour l’Observation de la Terre (SPOT) and the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data, comprehensive field and mineralogy studies demonstrates that phyllic alteration zone associated with northwestern (NW)–southeastern (SE) structural fractures is a high potential zone for Cu–Fe–Au veintype mineralisation in the Bajestan region, the Lut block, east Iran. The fractal pattern was calculated for fractures map using the Box- Counting algorithm to the SPOT-5 data. Statistical parameters of fractures, such as density, intensity and fractures’ intersection were also determined. Band composition, specialised band ratio and Spectral Angle Mapper (SAM) classification methods were implemented to the ASTER dataset for detecting hydrothermal alteration zones, such as propylitic, phyllic, argillic and gossan. Results indicate that the maximum value of the fractal dimension, intensity, density and the intersection of the fractures are concentrated in the NW and SE parts of SPOT image maps. In the other hand, phyllic alteration zone containing sericite, alunite, kaolinite and jarosite mineral assemblages was also identified in several zones of the NW and SE parts of the ASTER image maps. Integration of the results indicates the high potential zones for the occurrence of Cu–Fe–Au mineralisation in the Bajestan region.

Keywords

, SPOT, 5; ASTER; hydrothermal alteration zones; fractures map; the Lut Block; Iran
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@article{paperid:1068931,
author = {AHMADIROUHANI, REYHANEH and Karimpour, Mohammad Hassan and Rahimi, Behnam and Malekzadeh Shafaroudi, Azadeh and A. Beiranvand Pour and B. Pradhan},
title = {Integration of SPOT-5 and ASTER satellite data for structural tracing and hydrothermal alteration mineral mapping: implications for Cu–Au prospecting},
journal = {International Journal of Image and Data Fusion},
year = {2018},
volume = {9},
number = {3},
month = {June},
issn = {1947-9832},
pages = {1--27},
numpages = {26},
keywords = {SPOT-5; ASTER; hydrothermal alteration zones; fractures map; the Lut Block; Iran},
}

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%0 Journal Article
%T Integration of SPOT-5 and ASTER satellite data for structural tracing and hydrothermal alteration mineral mapping: implications for Cu–Au prospecting
%A AHMADIROUHANI, REYHANEH
%A Karimpour, Mohammad Hassan
%A Rahimi, Behnam
%A Malekzadeh Shafaroudi, Azadeh
%A A. Beiranvand Pour
%A B. Pradhan
%J International Journal of Image and Data Fusion
%@ 1947-9832
%D 2018

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