Diatoms are useful for identifying whether ancient bodies of water were fresh,brackish or salt,but not for finer-grained analytical questions,such as the level of water salinity or nutrient status.

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Diatoms can be used for finer-grained analytical questions, such as determining the level of water salinity or nutrient status. They have different species and morphologies that respond to specific environmental conditions, making them useful indicators for paleolimnological studies.

Diatoms Are Useful for Identifying Whether Ancient Bodies of Water