Bouguer anomalies of the NW Iberian continental margin and the adjacent abyssal plains



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Druet Vélez, María and Muñoz Martín, Alfonso and Granja Bruña, ALFONSO and Carbó Gorosabel, Andrés and Llanes Estrada, Pilar and Maestro, Adolfo and Bohoyo, Fernando and Martín Dávila, José (2019) Bouguer anomalies of the NW Iberian continental margin and the adjacent abyssal plains. Journal of Maps, 15 (2). pp. 635-641. ISSN 17445647

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The NW Iberian continental margin has a complex structure, resulting from the succession of several rifting episodes close to a ridge triple junction, and a superimposed partial tectonic inversion stage. The wide-ranging physiography matches the diverse tectonic deformation domains related to its evolution. Each deformation domain has a distinctive gravity signal, so the detailed Bouguer anomaly map presented here is a good first approach to the regional study of the whole margin. Moreover, as the presented chart is a complete Bouguer anomaly map (including terrain corrections), its analysis and interpretation can be done in terms of density, geometry and depth variations below the seafloor. This map is mainly based on the dataset obtained during seven one-month surveys carried out in the frame of the Spanish Economic Exclusive Zone project, and also includes two 2 + 3/4D density models illustrating the deep structure of the margin.

Item Type:Article
Uncontrolled Keywords:Gravity; Bouguer anomaly;NW Iberia; NE Atlantic Ocean; hyperextension; tectonic inversion
Subjects:Sciences > Physics > Geophysics
Sciences > Geology
Sciences > Geology > Geodynamics
ID Code:57156
Deposited On:01 Oct 2019 05:59
Last Modified:01 Oct 2019 10:03

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