Figure 11. Yb-Eu diagram for the tonalite-trondhjemite gneiss from the KSDB,
Kola-Norwegian and Murmansk blocks.
1-5 - calculated composition fields in model melts generated under
dehydration (solid line) and water-saturated (dash line) melting of sources TH1,
TH2 and NMORB in equilibrium with five types of restite (the types of restitic
assemblages are the same as in Tables 7 and 8).
6 -
TT rocks of KSDB. Plagiogneiss and plagiogranitoids of the Kola-Norwegian block:
7 - Varanger, 8 - Kirkenes, 9 - Garsjo.
TT rocks of the Murmansk block:
10 - Port-Arthur, 11 - Lumbovka, 12 - Dalnye Zelentsy, 13 - Ura-Guba,
14 - dash and arrow showing the direction of the evolution trend of the
element content under fractional crystallisation (0-50%).