DACIAN BASIN - GeoEcoMar

80
Chapter 3. Sediment Thickness Distribution in the Dacian Basin
FIGURE 3.10. Location of the thickest Maeotian sediments in the eastern part of the Dacian Basin,
according to different authors. A. Isopach map by Saulea et al. (1969). B. Isopach map by Hristescu
et al. (1962-1963). C. Thickness map from Tărăpoancă (2003). Legend for sediment thickness:
1. More than 1250 m. 2. Approx. 1000-1250 m. 3. Approx. 400-1000 m
3.4. SEDIMENT THINNINg-OUT AT THE SOUTHERN EDgE OF THE
DACIAN BASIN
All the examined isopach maps indicate that the Dacian Basin sediments thin toward
the outer, southern and eastern boundaries of the basin. An isopach map
drawn by Damian (1996) presents the detailed thinning-out structure of the basin.
The detailed isopach map (Fig. 3.8A) confirms the image conveyed by Saulea
et al. (1969) and Hristescu et al. (1962-1963) isopach maps on the basin-scale thinning
of sediments toward the margins of the Dacian Basin. The slope of the thickness/distance
graph (Fig. 3.8B) of the Pontian sediments exhibits small irregularities.
It shows a constant sediment accumulation trend. This feature brings more
information about the continuity of the process which determined the southward
advancement of the sediment accumulation front at the periphery of the Dacian
Basin (see Chapter 2.3).
3.5. CONCLUSIONS
Examination of the sediment thickness distribution in the Dacian Basin reveals several
features directly related to basin architecture and evolution: