TY JOUR TI Gamma ray spectrometry of rocks from a volcanic sequence penetrated by the SG-1 borehole and the radiogenic contribution to the total heat flow KW Gamma ray KW spectrometry of rocks KW total heat flow. JO Russian Journal of Earth Sciences AU Aliev, C.S. AU Zolotovitskaya, T.A. AU Ismailzade, T.A. PY 2002 IS 4 PB Geophysical Center of the Russian Academy of Sciences