Ecological toxicity testing found that lake sediments were toxic to aquatic life.

Here, it is composed mostly of a large deposit of lake sediments about two million years old.

The thickness of lake sediments is mostly unknown.

The strata deposited during the last ice age can be clearly seen, but lake sediments have also been exposed, from the lowering of the terrain.

The Lost Forest soil was formed from lake sediments and alluvial materials.

In 1990, lake sediment was being stirred up by nearly 20,000 catfish, carp, and black crappie fish.

In this way, lake sediments act as a good intermediate step between ice cores and tree rings.

A paired (black and white) layer of the varved lake sediments correspond to a year.

Palaeobotanical studies show that the lake sediments are 30-40,000 years old, making them the oldest found in Western Australia.

The deposits are lake sediment, and are of uncertain age.