part of is part of part of has part has part has_part occurs in has participant has participant ends water body particulate environmental material precipitation process material accumulation process material transport process sedimentation in a water body http://orcid.org/0000-0002-3410-4655 envoPolar A material accumulation process during which solid particles are pulled through a water body by gravitation or centrifugal force and which ends when they settle on a solid surface.