Raw geophysical data, navigation and logs from RRS James Cook expedition JC228, Guatemala Basin (2022-2023)

Raw post-cruise geophysical data, navigation and logs from RRS James Cook expedition JC228 (December 2022 to January 2023) in the Guatemala Basin region of the North Pacific Ocean. The data includes raw multi-channel seismic, ocean bottom seismometer (OBS), magnetics, gravity, bathymetry and sub-bottom profile data in their immediate post-cruise formats, alongside shipboard navigation and log files. The aim was to sample fast-spreading ocean lithosphere of the northern Cocos Plate from its formation to subduction in the Mid-America Trench, and to investigate the evolution of oceanic lithosphere as well as provide essential site survey information for two IODP Proposals: the flagship MoHole to Mantle initiative (M2M; IODP-805MDP) and the Bend Fault Serpentinization experiment (approved IODP-876Pre). The work was undertaken by scientists at the University of Southampton, UK in collaboration with GEOMAR Helmholtz Centre for Ocean Research, Germany, funded as part of NERC grant ‘From Ridge to Trench, MoHole to Bend-Faults’, grant reference NE/M021246/1.