GRADE AND TONNAGE MODEL OF KOMATIITIC Ni-Cu

By Donald A. Singer, Norman J Page, and W. David Menzie

COMMENTS Nickel grade is correlated with tonnage (r = -0.47) and with copper grade (r = 0.59, n = 21). Au, Ir, Pt, and Pd grades are based on reported analyses of samples from the deposits. See figs. 7-10.

Figure 7. Tonnages of komatiitic Ni-Cu deposits.

figure 7

Figure 8. Nickel and gold grades of komatiitic Ni-Cu deposits. A, Nickel. B, Gold.

Figure 8

Figure 9. PGE grades of komatiitic Ni-Cu deposits. A, Palladium. B, Iridium. C, Platinum.

Figure 9

Figure 10. Base-metal grades of komatiitic Ni-Cu deposits. A, Cobalt. B, Copper.

Figure 10

DEPOSITS

Name Country

Carnilya E. AUWA

Carnilya Hill AUWA

Damba ZIMB

Epoch ZIMB

E. Scotia AUWA

Hitura FNLD

Hunters Road ZIMB

Kambalda AUWA

Kotalahti FNLD

Langmuir l CNON

Langmuir 2 CNON

Manbridge CNQU

McWatters CNON

Miriam AUWA

Mt. Edwards AUWA

Mt. Windarra AUWA

Munda AUWA

Nepean AUWA

Perseverance ZIMB

Rankin Inlet CNNT

Redross AUWA

Scotia AUWA

Selukwe ZIMB

Shangani ZIMB

Sothman Twp. CNON

Spargoville AUWA

S. Windarra AUWA

Textmont CNON

Trojan ZIMB

Wannaway AUWA

Wigie 3 AUWA