Camacho, AG, A.G. and González Montesinos, Fuensanta and Vieira, Ricardo
(2000)
*Gravity inversion by means of growing bodies.*
Geophysics, 65
(1).
pp. 95-101.
ISSN 0016-8033

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Official URL: http://geophysics.geoscienceworld.org/content/65/1/95.full.pdf+html

## Abstract

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.

Item Type: | Article |
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Uncontrolled Keywords: | Canary-Islands; Gran-Canaria; Geochemistry & Geophysics |

Subjects: | Sciences > Physics > Geophysics |

ID Code: | 15992 |

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Deposited On: | 18 Jul 2012 10:59 |

Last Modified: | 06 Feb 2014 10:36 |

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