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Elements; August 2008; v. 4; no. 4; p. 247-252; DOI: 10.2113/GSELEMENTS.4.4.247
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Figure 4

Figure 4

Figure 4


FIGURE 3 Backscattered-electron images, elemental (Ni and Cu) X-ray maps, and in situ analyses of the two populations of base-metal sulfides from mantle-derived rocks. (A) "Residual" Fe-Ni-monosulfide inclusion in olivine. (B) "Basaltic" intergranular sulfide bleb. The color intensity indicates the relative abundance of the element. Mss: monosulfide solid solution; Pn: pentlandite; Cp/Icb: chalcopyrite-isocubanite. The chondrite-normalized PGE patterns are from a combination of different peridotites. Note that a combination of "residual" mss and an appropriate amount of "basaltic" intergranular sulfide produces a primitive mantle (PM)-like PGE pattern. DATA SOURCES: ALARD ET AL. (2000); LORAND AND ALARD (2001)





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