The project will determine the distribution and magnitude of Tertiary hot fluid pulses throughout the North Atlantic region in order to advance significantly the modelling of thermal history and improve our understanding of fluid migration and reservoir cementation throughout the region. Two sampling transects extend (1) from west Greenland to the northern North Sea to assess variation with proximity to the Tertiary mantle plume, and (2) near-normal, from southernmost Greenland to offshore Norway. Using fluid inclusion and vitrinite reflectance data, heat flows will be modelled which are consistent with structures inferred from seismic sections. Anomalous heat flows will be combined with other data using a GIS framework.