DACIAN BASIN - GeoEcoMar

9.6. Sediment source-areas during the Dacian Basin evolution
southern clastic supply the isopach maps, with contour line interval of 100 m, do not
show separate southern depocenters of the Balkanian and Dobrogean source-areas.
Middle-Late Sarmatian (s. l.) source-areas. Only Saulea et al. (1969) made a Dacian
Basin litho-paleogeographic map for the Middle-Late Sarmatian (s. l.) time interval.
The lithology (Fig. 2.5) and the isopachs (Fig. 9.3 A) shown on this map suggest that
the Eastern Carpathians were the only important acting source-area. The western
South Carpathians area represents, probably, the sediment source for the western
Dacian Basin depocenter.
Maeotian source-areas. The isopach map (Fig. 9.3 B) offers unambiguous evidence
for the large sediment supply which came from the eastern and western
Carpathian source-areas.
The isopach and lithologic map pattern does not indicate the Balkanian as a
source-area during the Maeotian time.
Dobrogean sediment supply is suggested by some lithologic data (Fig. 9.4 A).
On the isopach map (Fig. 9.3 B) the contours indicate a small sediment accumulation
in front of the Dobrogean dry-land, which is backing the lithologic indication.
FIGURE 9.9. The sediment source-areas system of the Dacian Basin. The size of the arrows suggests
the importance of the volume of sediment supplied by the source areas. A. Eastern Carpathians
source-area. B. Southern Carpathians source-area. C. Balkanian source-area. D. Dobrogean
source-area
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