Before revision: Paleolimnological studies are mostly conducted using analyses of the physical, chemical, and mineralogical properties of sediments, or of biological records such as fossil diatoms, cladocera, ostracodes, molluscs, pollen, pigments , or chironomids.
After revision: Paleolimnological studies are mostly conducted using analyses of the physical, chemical, and mineralogical properties of sediments, or of biological records such as fossil pollen, diatoms , or chironomids.