DACIAN BASIN - GeoEcoMar

2.1. Dacian Basin paleogeographic evolution: its beginnings, development and filling
2.1.4. The open sea Dacian Basin (Middle-Late Sarmatian s.l.)
The Middle-Late Sarmatian (s.l.) Dacian Basin was a sedimentary trench which received
mostly fine-grained, silty-clayey detritus material (Fig. 2.5). Coarser-grained
sandy sediments occured on the northern margin of the basin, in the proximity of
the Carpathians. The largest amount of sand size sediments accumulated at the
northern extremity of the basin. Based on faunal assemblages, Saulea et al. (1969)
suggest the fresh-water (or with a tendency to become fresh-water) character of
the coarser-grained deposits from the northern Dacian Basin (Fig. 2.5). The central
and western part of the basin is characterized by brackish water faunas.
FIGURE 2.5. Dacian Basin during the Middle-Late Sarmatian (s. l.). Simplified and modified from
Saulea et al. (1969). Legend: 1. Sandy facies. 2. Thick sandy units with clayey interbeds. 3. Siltysandy
facies. 4. Shell-beds. 5. Brackish water environment. 6. Fresh-water environment (or with a
tendency to become fresh-water)
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