ON THE RESTITE CHAMBER OF ELJURTINSKY GRANITE MASSIF BORED BY TYRNYAUZ DEEP BORE HOLE

Geochemical and thermobarogeochemical study of El'jurtinsky granite ma ssif rocks along the Tysnyauz deep bore hole shows that the later stag es of centripetal crystallization of the intrusion (starting C(H2O) = 3,1%, T(liq.) = 895-degrees-C) under the 3,5 km depth crystalline crus t a restite chamber (2-3 km3) has been formed containing low-temperatu re (706-degrees-C), water- (6% H2O) and volatiles-enriched melt with h igh concentrations of the elements having K(S/L) < 1 (W, Li), but depl eted in the elements having K(S/L) > 1 (Ni, Cr, V, Ti, Mn, Mo). The dy namics of water accumulation in the melt as the depth increased is in accordance with the predictions of quantitative model of ''diffusion p ush'' of mobile components aside of moving crystallization boundary. T o explain the found metals distribution features the model have to tak e into account transfer of the metals by ascending flow of gas bubbles from the low crystallization boundary.