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Título:
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Gravity inversion by means of growing bodies
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Autores:
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Camacho, AG, A.G. ;
Montesinos, F. G. ;
Vieira, Ricardo
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Tipo de documento:
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texto impreso
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Editorial:
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Soc Exploration Geophysicists, 2000
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Geofísica
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Tipo = Artículo
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Resumen:
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This paper presents a gravity inversion method for determining the volumes of bodies with pre-established density contrasts. The method works step-by-step on a prismatic partition of the subsurface volume, expanding the anomalous bodies to fit the observed gravity values in a systematic exploration of model possibilities. The process is treated in a 3-D context; at the same time, it can determine a simple regional trend. Moreover, positive and negative density contrasts are simultaneously accepted. The solution is obtained by a double condition: (1) the e(2)-fitness to the observed gravity data (model fitness) and (2) the minimization of the total (weighted) anomalous mass (model smoothness). A positive parameter is used to balance the two minimization terms. The method is applied to a simulated example and also to a real example: the volcanic island of Gran Canaria (Canary Islands, Spain). In both cases, the results obtained show the possibilities of the method.
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En línea:
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https://eprints.ucm.es/id/eprint/15992/1/GMonte13.pdf
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