Geochemical relationship between REE and PGE in mafic and ultramafic rocks and their petrogenetic significance - Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals - page 242

Birdagsky massif Khayalygsky massif

Mkh-11
Mkh-37

M
M

Mkh-12

Mkh-2

M

a

M

M

M

Figure 10.8 Chondrite-normalized REE patterns for some rocks from Birdagsky (1) and Khayalygsky
(2) massifs (West Tuva, Russia) (data Table 10.5).

Birdagsky massif

Khayaligsky massif

Figure 10.9 Chondrite-normalized PGE patterns for some rocks from Birdagsky (1) and Hayalygsky
(2) massifs (West Tuva, Russia) (data Table 10.5). Pattern's numbers are corresponded to
the ordinal numbers of analyses in Table 10.5.

rest of samples. Total Pt and Pd contents in all rocks of both massifs exceed the
total contents of Os, Ir and Ru. In all rocks of Khayalygsky massif and some sam-
ples from Birdagsky massif the content of Pd is higher than Pt content, in the rest
of the rocks from Birdagsky massif the reaction between these elements is inverse.
Plagioclase-bearing lherzolites of Birdagsky massif and also some hornblende-
bearing gabbro from Khayalygsky massif are characterized by slightly heightened
Re concentrations.