2. Definition
Paleolimnology is the study of water life and sediments from preexisting geological time periods.

3. TESTS Coring Sedimentation Porosity Phosphorus Chlorophyll Diatoms
Organic Matter
Percent CaCO3
Sedimentation
Phosphorus
Diatoms
Dating

4. Taking The Core

9. Porosity

11. Chlorophyll

14. Organic Matter

17. Sedimentation

21. Phosphorous

24. Diatom Identification
Gomphonema

25. Cyclotella

26. Navicula

27. Pinnularia

28. Planktonic
High
Moderate

29. Planktonic
Low
Moderate

30. Non-Planktonic
Clear
Water
High

31. Conclusions
Chlorophyll and Phosphorous both indicated nutrient loading since 1956.
Army Core of Engineers bulldozed lakebed in 1956.
Diatoms indicated deterioration of the health of the system.
In the 1990’s the water quality has slightly improved, but is still poor.