7th International Mining & Geology Conference, 2009

A Look at PlurigaussianSimulation for a Nickel Laterite

Deposit

Oscar Rondon

Nickel laterite

test

Vertical proportion curve map

Horizontal & Vertical cross variogramFerruginous-Saprolite

Horizontal & Vertical cross variogramFerruginous-Free silica

Horizontal & Vertical cross variogramSaprolite-Free silica

G1

G2

G1

G2

-0.5

-1.5

Tools/Discretization & Flattening

For setting up geometry and lithotype for computing VPC and input parameters for plurigaussian simulation

Statistics/Modeling/Plurigaussian variogram

For defining the lithotype rule & carry out the variogram fitting

Interpolate/Conditional simulations/ Plurigaussian

For carrying out the simulation

N

N

Simulation 1

300 Elev 300 Elev

350 Elev 350 Elev

400 Elev 400 Elev

LEGEND

1 Ferruginous

2 Saprolite

3 Free silica

Simulation 2

300 Elev 300 Elev

350 Elev 350 Elev

400 Elev 400 Elev

LEGEND

1 Ferruginous

2 Saprolite

3 Free silica

Simulation 3

300 Elev 300 Elev

350 Elev 350 Elev

400 Elev 400 Elev

LEGEND

1 Ferruginous

2 Saprolite

3 Free silica

Simulation 4

300 Elev 300 Elev

350 Elev 350 Elev

400 Elev 400 Elev

LEGEND

1 Ferruginous

2 Saprolite

3 Free silica

Simulation 1

300 Elev 300 Elev

350 Elev 350 Elev

400 Elev 400 Elev

LEGEND

1 Ferruginous

2 Saprolite

3 Free silica

3D interpreted wireframes

Categorical Indicator Kriging