21. Tufa barriers are the result of continuous sedimentation processes along natural thresholds. 22. Especially Mollusca can show specific properties depending on their depth of sedimentation . 23. Even small molecules supply a sufficiently strong force to produce significant sedimentation . 24. Soil erosion has increased on the land and sedimentation in the harbour. 25. Sedimentation is caused by development on land and agricultural runoff.26. In the middle of 1630, the canals of Batavia experienced sedimentation . 27. The aggregates are normally separated by sedimentation , leading to sewage sludge. 28. Dwarakeswar River has much sedimentation from low water ( any season ). 29. High flow velocities keep the system free of any blockages or sedimentation . 30. Sedimentation of streams because of mining is a localized threat.
