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Título: | Interpretation of gravimetric and magnetic anomalies in the Cameros Basin (North Spain): Combination of deep and shallow sources |
Autor: | Río, Pedro del; Casas Cendoya, Ana María CSIC ORCID ; Villalaín, Juan J.; Mochales López, Tania CSIC ORCID; Soto, Ruth CSIC ORCID ; Oliva-Urcia, Belén CSIC ORCID | Palabras clave: | Cameros Basin Iberian plate sedimentary basin modeling magnetics gravity |
Fecha de publicación: | 2013 | Editor: | Springer Nature | Citación: | Studia Geophysica et Geodaetica 57(3): 442- 459 (2013) | Resumen: | Outstanding potential field anomalies (gravimetric and magnetic) in the Cameros Basin (N Spain) follow a WNW-ESE trend, parallel to the geological structures resulting from Mesozoic extension and Tertiary basin inversion. The positive Bouguer gravity anomaly (15 mGal) is interpreted as the result of a strong contrast between the density of Tertiary rocks of the foreland basin and the Paleozoic and Mesozoic rocks, combined with crustal thickening in the Iberian Chain with respect to the Ebro Basin. The dipolar magnetic anomaly, slightly shifted to the south with respect to the relative maximum of the Bouguer anomaly, can be interpreted as related to volcanic rocks within the basement, which are linked to Triassic rifting as witnessed by outcrops of basalts along the basin margins. An exhaustive analysis of rock properties (density, magnetic susceptibility and remanence) and basin geometry from other sources (seismic reflection profiles) allow to constrain variations in crustal thickness and the location of large-scale basement faults. © 2013 Institute of Geophysics of the ASCR, v.v.i. | Versión del editor: | http://dx.doi.org/10.1007/s11200-012-0369-2 | URI: | http://hdl.handle.net/10261/88771 | DOI: | 10.1007/s11200-012-0369-2 | Identificadores: | doi: 10.1007/s11200-012-0369-2 issn: 0039-3169 |
Aparece en las colecciones: | (IPE) Artículos (IGME) Artículos |
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Interpretation_gravimetric_magnetic_2013.pdf | 1,84 MB | Adobe PDF | Visualizar/Abrir |
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