TY JOUR TI The geologic structure of the Akkermanovka fragment of the Khabarny Massif ophiolite association South Ural KW Ophiolites KW oceanic crust KW spreading KW layered rocks KW sheeted dikes KW Khabarny Massif KW Akkermanovka rock association KW South Ural. JO Russian Journal of Earth Sciences AU Razumovskiy, A.A. PY 2006 IS 8 PB Geophysical Center of the Russian Academy of Sciences