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GIS-based 3D prospectivity mapping: A case study of Jiama copper-polymetallic deposit in Tibet, China

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Title GIS-based 3D prospectivity mapping: A case study of Jiama copper-polymetallic deposit in Tibet, China
 
Creator XIAO, KY
LI, N
ALOK, P
HOLDEN, EJ
LEON, B
LU, YJ
 
Subject WEIGHTS-OF-EVIDENCE
WESTERN-AUSTRALIA
ASHANTI BELT
EXPLORATION
MODEL
DISTRICT
QUEENSLAND
INVERSION
EVOLUTION
PORPHYRY
3D
Geological modelling
Prospectivity mapping
Jiama Cu-polymetallic deposit
Geochemical halos
 
Description This paper reports a deposit-scale GIS-based 3D mineral potential assessment of the Jiama copper-polymetallic deposit in Tibet, China. The assessment was achieved through a sequential implementation of metallogenic modelling and 3D modelling of geology, geochemistry and prospectivity. A metallogenic model for the Jiama deposit and 3D modelling workflow were used to construct multiple 3D layers of volumetric and triangular mesh models to represent geology, geochemistry and ore-controlling features in the study area. A GIS-based 3D weights-of-evidence analysis was then used to estimate the subsurface prospectivity for Cu (Mo) orebodies in the area, which led to the identification of three prospective deep-seated exploration targets. Additionally, the geochemical modelling indicates three potential fluid flow pathways based on the 3D zonation of major geochemical elements and their ratios, particularly the Zn/Pb ratios, which support the results of the weights of evidence model. (C) 2015 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T04:50:31Z
2016-01-15T04:50:31Z
2015
 
Type Article
 
Identifier ORE GEOLOGY REVIEWS, 71(SI)611-632
0169-1368
1872-7360
http://dx.doi.org/10.1016/j.oregeorev.2015.03.001
http://dspace.library.iitb.ac.in/jspui/handle/100/17801
 
Language en