Source: Science Daily
Scientists measured a sediment plume stirred up by a protoype of a deep-sea-mining vehicle to help gauge the impact of such vehicles if they are used to mine minerals like nickel and cobalt. The vehicle created a dense sediment plume that remained relatively low, staying within 2 meters of the seafloor.
https://www.sciencedaily.com/releases/2022/09/220921141456.htm