Structure and Dynamics of the Porcupine Magma-Poor Continental Margin from new Ocean Bottom Seismometer Data: Invited Poster

The Porcupine Basin is as a natural laboratory to investigate temporal evolution of magma-poor rifts. A key feature is that total degree of stretching increased progressively from north to south, meaning that a map of Porcupine Basin structure can potentially be interpreted in terms of temporal evolution of magma-poor rifted margins. Thus Porcupine Basin complements ongoing work at magma-poor margins such as Galicia, where only the final break-up stage is preserved.
As a component of the broader PORO-CLIM project, our aim is to analyse and generate a whole-crustal seismic velocity model from Profile 2, and integrate it with previous findings, to reconstruct the complete rifting history of the Porcupine Basin, from low-degree rifting in the north, to hyper-extension in the centre, to break-up in the south. To date, we have begun to generate the crustal velocity model, alongside mapping basement structures on a grid of 2D seismic data provided by project partners. As the PORO-CLIM project advances, it promises to unveil a deeper comprehension of magma-poor rift dynamics within the broader context of North Atlantic evolution.