sediment

A microbial film on the outer surface of the carcass then attracted clay particles from the surrounding wet sediment through electrostatic forces.

However, scientists were unsure whether those teeth came from exactly the same sediment layer as the foot.

Both the heated fluids from below and the cooler, methane-filled gases from the sediments move upward through the same pathways.

For many years, scientists have known that fine particles from space steadily fall to Earth and accumulate in ocean sediments.

Imprinted in sediments or sedimentary rock, they record a specific moment of activity and confirm the exact location where an individual stood or moved.