FIGURE 6 Chondrite-normalized PGE abundances measured in basalt-hosted
mantle-lherzolite xenoliths collected from five continents. Note that very few
analyses match the Becker et al.
(2006) primitive mantle
estimate. Most xenoliths are significantly depleted in PGE, especially Os.
DATA SOURCES: REHKÄMPER ET AL.
(1997); HANDLER
ANDBENNETT
(1999); LORAND AND
ALARD (2001);
PEARSON ET AL.
(2004); BECKER ET
AL. (2006)