Indirect rock type modeling using geostatistical simulation of independent components in Nohkouhi volcanogenic massive sulfide deposit, Iran

摘要: Abstract Geological modeling is a useful tool for host rock reconstruction in volcanogenic massive sulfide (VMS) deposits. In this paper, we have proposed two type models Nohkouhi copper deposit, which siliciclastic felsic Central Iran zone. the mineralization hosted by different grade rocks consisting of Black shale and Rhyodacite. Moreover, shale, distribution directly corresponds to Geochemical factors types distinguished using ICA. Scores IC1 via IC2 indicated best discrimination between Our manually constructed class boundary provided bivariate discriminant line that can be used determine types. ICs are simulated sequential Gaussian simulation (SGS). The classify each node grid pair realization. Also, indicator (SIS) applied Rhyodacite on account their wide range geometries assumed deterministic geological model. order model compared methods comprising direct (using simulation) indirect independent component analysis). experimental results simulation, could employed both resource evaluation knowledge Besides, produces cannot stage; however, it helpful with respect basic understanding geology deposit. showed 96% agreement other. ICA chemically presented key relations