TY - JOUR
T1 - District-scale mapping of Mississippi Valley-type Pb-Zn mineralisation potential through an AHP-TOPSIS model
T2 - a case study from the southern Hamedan area (western Iran)
AU - Darabi, S.
AU - Haroni, Hooshang Asadi
AU - Aliabadi, M. A.
N1 - Publisher Copyright:
© 2023-OGS.
PY - 2023/9
Y1 - 2023/9
N2 - The southern Hamedan area in western Iran is a region with high potential for Mississippi Valley type Pb-Zn mineralisation, for which a suitable prospecting map is needed to optimise future mineral exploration. Satellite imagery, geologic and geochemical data sets of the area were used to map Pb-Zn mineralisation potential using the analytical hierarchy process and the technique of order preference by similarity to the ideal solution (AHP-TOPSIS). Various criteria maps representing specific Pb-Zn criteria, such as lithological classes, structural controls, hydrothermal alteration, and geochemical anomalies in the Pb and Zn catchment basin geochemical anomalies, were integrated using the AHP-TOPSIS approach to obtain a final favourable map of Pb-Zn mineralisation in the southern Hamedan area. Fractal analysis was used to classify the final potential map into three zones: highly favourable, favourable, and slightly favourable. The four known Pb-Zn deposits are located in or adjacent to the highly favourable pixels. It is recommended that the unexplored highly favourable and favourable zones be considered for further exploration.
AB - The southern Hamedan area in western Iran is a region with high potential for Mississippi Valley type Pb-Zn mineralisation, for which a suitable prospecting map is needed to optimise future mineral exploration. Satellite imagery, geologic and geochemical data sets of the area were used to map Pb-Zn mineralisation potential using the analytical hierarchy process and the technique of order preference by similarity to the ideal solution (AHP-TOPSIS). Various criteria maps representing specific Pb-Zn criteria, such as lithological classes, structural controls, hydrothermal alteration, and geochemical anomalies in the Pb and Zn catchment basin geochemical anomalies, were integrated using the AHP-TOPSIS approach to obtain a final favourable map of Pb-Zn mineralisation in the southern Hamedan area. Fractal analysis was used to classify the final potential map into three zones: highly favourable, favourable, and slightly favourable. The four known Pb-Zn deposits are located in or adjacent to the highly favourable pixels. It is recommended that the unexplored highly favourable and favourable zones be considered for further exploration.
KW - AHP-TOPSIS
KW - mineral potential mapping
KW - Pb-Zn mineralisation
KW - western Iran
UR - http://www.scopus.com/inward/record.url?scp=85171369192&partnerID=8YFLogxK
U2 - 10.4430/bgo00406
DO - 10.4430/bgo00406
M3 - Article
AN - SCOPUS:85171369192
SN - 2785-339X
VL - 64
SP - 301
EP - 316
JO - Bulletin of Geophysics and Oceanography
JF - Bulletin of Geophysics and Oceanography
IS - 3
ER -