Figure 3. Composition of sandstones of the upper terrestrial
assemblage of the Vendian molasse, after [Sovetov,
1977]. Three petrographic horizons:
lower - QR1,
middle - QR2, and upper - QF, plotting on the QmFLt diagram
[Dickinson, 1988] close to (1) the province of
recycled orogens, (2) a mixed source of clastic material, and
(3) the province of continental blocks on stable cratons and the
province of uplifted basement blocks, respectively.
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