Figure 2. Composite section of Vendian rocks in Podolia [Sokolov and Fedonkin, 1985; Velikanov, 1990, simplified]: (1) basement rocks; (2) breccia; (3) conglomerate and gravelite; (4) very coarse- and large-grained sandstones; (5) medium-, fine-, and very fine-grained sandstones; (6) siltstone; (7) argillite; (8) basalt; (9) tuffaceous siltstone; (10) phosphorite concretions; (11) rocks of brown color, (12) sampling depth and outcrop numbers.