TY JOUR TI Surface analogues of "grey gneiss'' among the Archaean rocks in the Kola Superdeep Borehole experience from petrologic-geochemical modelling of lower crust composition and conditions of formation of tonalite-trondhjemite rocks KW Archaean rocks KW Kola Superdeep Borehole KW types of plagiogneiss. JO Russian Journal of Earth Sciences AU Vetrin, V.R. AU Turkina, O.M. AU Nordgulen, O.. PY 2001 IS 3 PB Geophysical Center of the Russian Academy of Sciences