POLYGENOUS ZIRCONS IN THE ADUI BATHOLITH (MIDDLE URALS)

Abstract

The Adui Massif, the largest batholith in the north-western paleocontinental zone of the Urals, is highly similar to the northern Murzinka Massif. These batholiths probably make up a single massif. The Adui Batholith is composed of granites of different compositions and ages. Biotite and two-mica (orthoclase and microcline) granites and younger adamellites prevail among the granites. These rocks are intruded by numerous pegmatite and aplite veins.