Upload from a seafloor vent



There are some places in the oceans where sediment may accumulate at the rate of one millimeter in a thousand years, or where important geological processes take place at the rate at which fingernails grow, said marine geophysicist Steve Hammond.

That's snoozeville, said Hammond, leader of the ocean environment research division at the Pacific Marine Environmental Laboratory of the U.S. National Oceanic and Atmospheric Administration (NOAA).