Gravity inversion by means of growing bodies
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...
| Autores: | ; ; |
|---|---|
| Tipo de documento: | Artículo |
| Fecha de publicación: | 2000 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/57460 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/57460 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | 550.3 Canary-Islands Gran-Canaria Geochemistry & Geophysics Geofísica 2507 Geofísica |
| _version_ | 1878730259989266432 |
|---|---|
| author | Camacho, AG, A.G. |
| author2 | González Montesinos, Fuensanta Vieira, Ricardo |
| author2_role | author author |
| author_browse | Camacho, AG, A.G. González Montesinos, Fuensanta Vieira, Ricardo |
| author_facet | Camacho, AG, A.G. González Montesinos, Fuensanta Vieira, Ricardo |
| author_role | author |
| collection | Docta Complutense |
| description | 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. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_18ad4e1d94e9fb0c81a90075f8e249ab |
| institution | Universidad Complutense de Madrid (UCM) |
| instname_str | Universidad Complutense de Madrid (UCM) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:docta.ucm.es:20.500.14352/57460 |
| publishDate | 2000 |
| publishDateSort | 2000 |
| publisher | SOC EXPLORATION GEOPHYSICISTS |
| publisherStr | SOC EXPLORATION GEOPHYSICISTS |
| reponame_str | Docta Complutense |
| spelling | Gravity inversion by means of growing bodies Camacho, AG, A.G. González Montesinos, Fuensanta Vieira, Ricardo 550.3 Canary-Islands Gran-Canaria Geochemistry & Geophysics Geofísica 2507 Geofísica 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. SOC EXPLORATION GEOPHYSICISTS https://hdl.handle.net/20.500.14352/57460 |
| spellingShingle | Gravity inversion by means of growing bodies Camacho, AG, A.G. 550.3 Canary-Islands Gran-Canaria Geochemistry & Geophysics Geofísica 2507 Geofísica |
| title | Gravity inversion by means of growing bodies |
| title_full | Gravity inversion by means of growing bodies |
| title_fullStr | Gravity inversion by means of growing bodies |
| title_full_unstemmed | Gravity inversion by means of growing bodies |
| title_short | Gravity inversion by means of growing bodies |
| title_sort | Gravity inversion by means of growing bodies |
| topic | 550.3 Canary-Islands Gran-Canaria Geochemistry & Geophysics Geofísica 2507 Geofísica |
| topic_facet | 550.3 Canary-Islands Gran-Canaria Geochemistry & Geophysics Geofísica 2507 Geofísica |
| url | https://hdl.handle.net/20.500.14352/57460 |