70
Figure 2. Location and geological map of the Grasberg deposit in the Ertsberg-Grasberg mining district, Papua, Indonesia modified from Sapiie and Cloos (2004). The Grasberg deposit is in the upper left
quadrant of the map area labeled “GIC”.
Figure 3. Plan view at 3,600 m elevation of Cu and Au grades in the Grasberg deposit. Dashed lines
with arrows illustrate the circular continuity of Cu and Au grades.
Figure 4. Flow chart of the LVA estimation process applied in the Dalam-MGI domain at Grasberg.
Cu
[ Grasberg LVA Kriging Workflow
'
'
'
'
'-----------------------------------------------------------------'
EXPLANATION
0 { D AJtuvium, Till
ffiliill Skams
Intrusions
i!:" 12:! Ertsbefg (E)
~ 1.::11 Grasb&rg (GIC)
1D Others
Ea Kais Fm
S1rga Fm.
~
Faumatl
Wanpl Fms
~{[3
Kombelongan
Group
\- . - J " ' " ~ / Access road
/
-
...
~
~
-
HSZ
,----! Ka6
~
-
> 2
-
1.0 - 2.0
. 0 . $ - 1.0
o o.zs-o.s
D ~
> 5
2.0· S.O
1.0-2.0
ASS'-'mble LVA
wllh other