Sediment pore water chemistry measurements from the continental margin offshore Washington State, USA

This dataset includes sediment pore water chemistry measurements from the continental margin offshore Washington State, USA. Samples were collected during Atlantis expedition AT26-04 (Cruise DOI: 10.7284/900417). Push core and multi-core samples were collected adjacent to heat flow and porosity measurement locations along a transect from the upper slope to the incoming plate, including seep sites. The study was designed to evaluate the heat flow, fluid flow, and chemical flux distribution across the convergent margin.