dor_id: 4132627

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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270.#.#.d: MX

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856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1365/1346

100.1.#.a: Saraf, P. D.; Indira Nagubai, D.

524.#.#.a: Saraf, P. D., et al. (1993). Insertion loss due to a magnetically permeable spherical shell covering a concentric conducting target. Geofísica Internacional; Vol. 32 Núm. 1: Enero 1, 1993; 167-173. Recuperado de https://repositorio.unam.mx/contenidos/4132627

245.1.0.a: Insertion loss due to a magnetically permeable spherical shell covering a concentric conducting target

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1993

264.#.1.c: 1993-01-01

653.#.#.a: Método electromagnético; Exploración minera; Electro-magnetic survey; Mineral exploration

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1365

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1365

041.#.7.h: spa

520.3.#.a: A layered section in a uniform electromagnetic field is assumed to have two concentric spherical shells (in nongalvanic contact). Such targets may occur in native copper deposits viz., conducting ore bodies surrounded by a halo of altered rocks. It is found that (a) changes in characteristic properties of overburden and/or ore formations cause significant distortions in the geoelectromagnetic parameters and may change the detection sensitivity in some bands of frequencies; (b) multifrequency measurements afford the possibility of seeing beneath highly conducting layers; and (c) the variation of the shielding parameter with frequency exhibits, qualitatively, different patterns for conductive and resistive covers and may help distinguishing EM anomalies due to conductive and resistive overburden formations. The results may be useful in (1) understanding the shielding phenomenon in complex geological situations, and (2) providing background information (i.e. shielding behaviour of overlying or surrounding formations) against which geoelectromagnetic experiments can be planned.

773.1.#.t: Geofísica Internacional; Vol. 32 Núm. 1: Enero 1, 1993; 167-173

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: 167-173

264.#.1.b: Instituto de Geofísica, UNAM

doi: https://doi.org/10.22201/igeof.00167169p.1993.32.1.1365

handle: 603cf04228e04f28

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2022-07-05 10:47:20.0

file_modification_date: 2022-07-27 06:00:04.0

file_creator: P.D: Saraf

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245.1.0.b: Insertion loss due to a magnetically permeable spherical shell covering a concentric conducting target

last_modified: 2023-06-20 16:00:00

license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es

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Artículo

Insertion loss due to a magnetically permeable spherical shell covering a concentric conducting target

Saraf, P. D.; Indira Nagubai, D.

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Saraf, P. D., et al. (1993). Insertion loss due to a magnetically permeable spherical shell covering a concentric conducting target. Geofísica Internacional; Vol. 32 Núm. 1: Enero 1, 1993; 167-173. Recuperado de https://repositorio.unam.mx/contenidos/4132627

Descripción del recurso

Autor(es)
Saraf, P. D.; Indira Nagubai, D.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Insertion loss due to a magnetically permeable spherical shell covering a concentric conducting target
Fecha
1993-01-01
Resumen
A layered section in a uniform electromagnetic field is assumed to have two concentric spherical shells (in nongalvanic contact). Such targets may occur in native copper deposits viz., conducting ore bodies surrounded by a halo of altered rocks. It is found that (a) changes in characteristic properties of overburden and/or ore formations cause significant distortions in the geoelectromagnetic parameters and may change the detection sensitivity in some bands of frequencies; (b) multifrequency measurements afford the possibility of seeing beneath highly conducting layers; and (c) the variation of the shielding parameter with frequency exhibits, qualitatively, different patterns for conductive and resistive covers and may help distinguishing EM anomalies due to conductive and resistive overburden formations. The results may be useful in (1) understanding the shielding phenomenon in complex geological situations, and (2) providing background information (i.e. shielding behaviour of overlying or surrounding formations) against which geoelectromagnetic experiments can be planned.
Tema
Método electromagnético; Exploración minera; Electro-magnetic survey; Mineral exploration
Idioma
spa
ISSN
ISSN-L: 2954-436X; ISSN impreso: 0016-7169

Enlaces