Radiochemistry data for fluids sampled from the Lost City Hydrothermal Field at the Atlantis Massif in 2018

This dataset includes radiochemistry data for fluids from 7 vent sites (Marker 2, Beehive, Marker 8, Marker 3, Calypso, Marker C. and Sombrero) at the Lost City Hydrothermal Field at the Atlantis Massif (30N, Mid-Atlantic Ridge). Fluid samples were collected in September 2018 during the AT42-01 expedition of the R/V Atlantis with the remotely operated vehicle (ROV) Jason II.