Modelling of Residual Gravity Data due to a Near Surface Dyke Structure Using Damped SVD and Marquardt Inverse Methods
Eshaghzadeh, Ata; Hajian, Alireza
Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM
dor_id: 4132714
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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra
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336.#.#.a: Artículo
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351.#.#.b: Geofísica Internacional
351.#.#.a: Artículos
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856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1435/1564
100.1.#.a: Eshaghzadeh, Ata; Hajian, Alireza
524.#.#.a: Eshaghzadeh, Ata, et al. (2022). Modelling of Residual Gravity Data due to a Near Surface Dyke Structure Using Damped SVD and Marquardt Inverse Methods. Geofísica Internacional; Vol. 61 Núm. 4: Octubre 1, 2022; 325-350. Recuperado de https://repositorio.unam.mx/contenidos/4132714
245.1.0.a: Modelling of Residual Gravity Data due to a Near Surface Dyke Structure Using Damped SVD and Marquardt Inverse Methods
502.#.#.c: Universidad Nacional Autónoma de México
561.1.#.a: Instituto de Geofísica, UNAM
264.#.0.c: 2022
264.#.1.c: 2022-10-01
653.#.#.a: Descomposición amortiguada en valor singular; Gravedad y Marquardt; Damped singular value decomposition (DSVD); Gravity and Marquardt
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884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1435
001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1435
041.#.7.h: spa
520.3.#.a: In this paper, two inverse modeling methods based on the damped singular value decomposition (DSVD) as a linear inverter and Marquardt optimization algorithm as a nonlinear inverter are described. The damped SVD solve the ill-posed problems and specify the subsurface density contribution directly. The Marquardt inversion estimate the model parameters. The efficiency of the both methods is investigated using the synthetic gravity data, with and without random noise, as the acceptable results attained. The introduced approaches are employed for the interpretation of a real gravity data set from Iran. The gravity causative mass in the study area are almost the magmatic deposit with a high percent of the Manganese dioxide where there have penetrated inside of the fractures and have approximately formed the tabular structures. The inverted structures from the both methods are almost corresponding. The evaluated width, extension and depth to the top and bottom for the buried structure via the damped SVD technique are 15m, 22m, 7.5 m and 25m, respectively and by the Marquardt’s algorithm are 15.8m, 20.3m, 9.4 m and 21.9m, respectively. The simulated source has a trend NW-SE with a dip of 38.04 degree.
773.1.#.t: Geofísica Internacional; Vol. 61 Núm. 4: Octubre 1, 2022; 325-350
773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI
022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169
310.#.#.a: Trimestral
300.#.#.a: Páginas: 325-350
264.#.1.b: Instituto de Geofísica, UNAM
doi: https://doi.org/10.22201/igeof.00167169p.2022.61.4.2203
handle: 00c2b668b703194e
harvesting_date: 2023-06-20 16:00:00.0
856.#.0.q: application/pdf
file_creation_date: 2022-09-21 18:18:23.0
file_modification_date: 2022-09-29 18:58:42.0
file_creator: Ata Eshaghzadeh
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245.1.0.b: Modelling of Residual Gravity Data due to a Near Surface Dyke Structure Using Damped SVD and Marquardt Inverse Methods
last_modified: 2023-06-20 16:00:00
license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es
license_type: by-nc-nd
Eshaghzadeh, Ata; Hajian, Alireza
Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM
Eshaghzadeh, Ata, et al. (2022). Modelling of Residual Gravity Data due to a Near Surface Dyke Structure Using Damped SVD and Marquardt Inverse Methods. Geofísica Internacional; Vol. 61 Núm. 4: Octubre 1, 2022; 325-350. Recuperado de https://repositorio.unam.mx/contenidos/4132714