AN IN SITU GAS-TIGHT PORE WATER SAMPLER FOR DEEP-SEA SEDIMENTS

This paper presents a new-developed in situ gas-tight pore water sampler for deep-sea sediments,particularly introducing its configuration,feature and working principle.Marine tests and laboratory simulations showed that the sampler was able to be employed to sample pore water of the seafloor sediments with thicknesses of 3~5.5 m,at water depths between 500 and 4 200 m under the sea,and can simultaneously obtain 11 bottles of pore water,each of which is more than 100 mL at volume.