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Maribno Amphibious Project: Role of the Inherited Tectonics in the Structure of the Northwestern Iberian Margin
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 83rd EAGE Annual Conference & Exhibition, Jun 2022, Volume 2022, p.1 - 5
Abstract
The northwestern margin of the Iberian Peninsula (western Bay of Biscay) is a unique place that can be considered as a natural laboratory to study the role of tectonic inheritance in the evolution of the extensional continental margins and their subsequent inversion. Because this scientific interest it is being carried out MARIBNO amphibious project, headed by the Complutense University of Madrid, for the acquisition of offshore-onshore geophysical-geological data. The project has three main objectives: 1) Study of the along- and across-strike crustal structure in the western end of the Cantabrian range and its adjacent continental margins (N-S trending Atlantic margin and E-W trending Cantabrian margin); 2) Study of the tectonic control of inherited Cretaceous rift structures during the Alpine compression (i.e., tectonic inversion); and 3) Mapping and characterization of the crustal domains, combining geological and geophysical criteria. The MARIBNO project is still underway (2019–2022). Data acquisition was completed up to 85%, but this large dataset is still being processed and preliminary interpreted. Acquired information will be complemented with onshore gravity and magnetic data and geological field mapping on seismic transects throughout the Cantabrian Mountains. Here we show the current development of the MARIBNO amphibious project and some preliminary data.