1. Lecture 7 Shallow clastic seas

2. epicontinental
pericontinental

3. Dominant controls on sedimentation patterns
Sediment transport (hydraulic regime)
Sediment supply
Relative sea-level changes
Tectonic environment

4. Dominant controls on sedimentation patterns
Sediment transport (hydraulic regime)
Sediment supply
Relative sea-level changes
Tectonic environment

5. Tectonic environment EXAMPLES U.S. Eastern seaboard Gulf of Alaska
Taiwan

6. Dominant controls on sedimentation patterns
Sediment transport (hydraulic regime)
Sediment supply
Relative sea-level changes
Tectonic environment

7. Dynamic stratigraphic models
Rate of sediment supply exceeds rate of accommodation-space creation and sediment dispersal
Regression dominates

8. Rate of sea-level rise and sediment transport/dispersal exceeds rate of sediment supply
Transgression dominates

9. Dominant controls on sedimentation patterns
Sediment transport (hydraulic regime)
Sediment supply
Relative sea-level changes
Tectonic environment

10. 80% 3%
17%

11. Tide-dominated shallow seas
Supply-dominated examples are rare:
Amazon shelf
Bohai gulf
Tidal range
> 3-4 meters
V > 60 cm/sec
Accommodation-dominated situations are much more common
Partially enclosed seas, elongate seaways, blind gulfs

14. 150
100

18. Storm-dominated systems

19. Transport, deposition and erosion in the near-shore environment