Estimating Quartz Reserves Using Compositional Kriging

Table 1

Co-regionalization model coefficients used in the structural analysis of the transformed variables 𝑍^∗_𝑗, 𝑗=1,2,3.

	𝛽^𝑟11	𝛽^𝑟22	𝛽^𝑟33	𝛽^𝑟12	𝛽^𝑟13	𝛽^𝑟23
𝑟=1	0.0517	0.0382	0.0219	0.0064	0.0060	0.0045
𝑟=2	0.0917	0.0534	0.0003	−0.0074	0.0047	0.0016