An estimate of the depth to the basement underneath the Benue trough from a study of aeromagnetic anomalies
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A partir de un estudio de anomalías aeromagnéticas sobre partes de la hondonada de Benue, Nigeria, se hace aquí un intento de estimar la profundidad del basamento bajo dicha hondonada y consiguientemente, el espesor de los sedimentos en el área. Se han determinado varios perfiles aeromagnéticos a través de la hondonada y se ha llevado a cabo una interpretación bidimensional de éstos utilizando la optimización no-lineal y técnicas interactivas en un esfuerzo por estimar la naturaleza y profundidad al basamento bajo la hondonada. Los resultados de esta interpretación muestran que bajo la hondonada Benue subyace un basamento de topografía variable. La profundidad al basamento y consiguientemente el espesor de los sedimentos que la llenan se estima que varían entre unos 0.5 km y 7 km.
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