Fig. 1: HTVCs on the mid-Norwegian margin.
From: Shallow-water hydrothermal venting linked to the Palaeocene–Eocene Thermal Maximum
a, Structural elements46. Purple colours, extrusive volcanic elements related to continental break-up; green colours, Cretaceous basins; black dots, hydrothermal vents; grey, oceanic crust. Yellow dots, Deep Sea Drilling Project, Ocean Drilling Project and Integrated Ocean Discovery Program drill sites. For complete legend, see ref. 46. Inset shows location of study area. b, Three-dimensional view of seismic reflection data showing the relationship between volcanic intrusions (sills) and the palaeoseafloor depressions formed by the hydrothermal venting. BVU, interpreted Base Vent Unconformity. Industry 3D seismic data courtesy of TGS under a Creative Commons license CC BY 4.0.
