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Describes the relationship between sedimentary and metamorphic rocks, revealing a complex metamorphic history in the Yenisei Ridge.
An angular discordance between folded metamorphic rocks and a molasse (orogenic) complex is known to exist in the Yenisei Ridge. The paper describes another type of relations, i.e., development of thermodynamometamorphic rocks after sandstones in the orogenic complex. This implies two stages of metamorphism in the Yenisei Ridge.
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Goryainov et al. (1991) studied this question.
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