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Afanasieva 2000


PLATE 139.
Organogenous limestones (1-4) and flint-limestones (5-8) with fauna
Upper Devonian: fig.1, 8 - Lower Frasnian, Ust'yarega suite; fig. 3-7 - Middle Frasnian, Domanik Formation; fig. 2 - Upper Frasnian. The Chut River: outcrop 7, fig. 1 - sample 0', fig. 5 - sample 4, fig. 8 - sample 2; outcrop 8, sample 7d: fig. 4; borehole Vapovskaya-2056, sample 11 (depth 72 m): fig. 2; the Ukhta River, sampling site no. 3, sample 1681: fig. 3; the Domanik River, outcrop 21, sample 38: fig. 6, 7. Fig. 2-4, 6-8. Rock samples were disintegrated by 15% solution of acetic acid.

Fig. 1. Organogenous limestones with intact shells of Ammonoidea and Orthoceratoidea on the boundary surfase: FF-L003/000' (bar=1,3mm).
Fig. 2-4. Radiolarian-spongin limestone: 2 - FF-L001/13414 (=200m); 3 - FF-L001/14212 (=67m); 4 - FF-L001/14229 (=100m).
Fig. 5. Black flint-limestone with Orthoceratoidea and Gastropoda: FF-L003/004 (=1,3mm).
Fig. 6. Radiolarian-tentaculitid flint-limestone: FF-L001/14029 (=110m).
Fig. 7. Tentaculitid flint-limestone: FF-L001/14024 (=100m).
Fig. 8. Tentaculitid-spongin flint-limestone: FF-L001/14122 (=375m).