dor_id: 4133087

506.#.#.a: Público

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

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

561.#.#.u: https://www.geofisica.unam.mx/

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

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1370/1361

100.1.#.a: Urrutia Fucugauchi, J.; Molina-garza, R. S.

524.#.#.a: Urrutia Fucugauchi, J., et al. (1992). Gravity modelling of regional crustal and upper mantle structure of the Guerrero terrane - 1. Colima graben and southern Sierra Madre Occidental, western Mexico.. Geofísica Internacional; Vol. 31 Núm. 4: Octubre 1, 1992; 493-507. Recuperado de https://repositorio.unam.mx/contenidos/4133087

245.1.0.a: Gravity modelling of regional crustal and upper mantle structure of the Guerrero terrane - 1. Colima graben and southern Sierra Madre Occidental, western Mexico.

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1992

264.#.1.c: 1992-10-01

653.#.#.a: Estructura cortical; Gravedad; Tectónica; Terreno Guerrero; Graben de Colima; Occidente de México; Crustal structure; Gravity; Tectonics; Guerrero terrane; Colima Graben; Western México

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/1370

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1370

041.#.7.h: spa

520.3.#.a: Quantitative modelling of the Bouguer and Free-Air composite gravity anomaly map for western-central Mexico and of a long, -400 km north-south, gravity profile is used to investigate the crust and upper mantle structure beneath the region. Crustal thickness increases from the Pacific ocean margin towards the continental interior, presenting higher values beneath the plateaus of the Trans-Mexican volcanic belt (TMVB) and the Sierra Madre Occidental (SMO) (in the range of -40.46 km thick). The region appears to be under regional isostatic equilibrium with shorth wavelengtll local departures. Results of the gravity study do not support interpretations of an igneous Mesozoic island-arc assemblage over oceanic lithosphere for the western Guerrero terrane. Instead, gravity modelling suggests a crust of continental (or transitional) character, with a thick lower crust of metamorphic or igneous nature. This may correspond to a high density granulitic lower crust, probably consisting of crystallized mafic liquids, cumulates and/or residues from removal of a partial melt, and garnet-rich metasediments, or alternatively, an igneous (dioritic or gabbroic) crust. Two-dimensional ¢rustal models are compatible with the occurrence of a low-to intermediate-density layer at the base of the crust which has: been proposed as responsible for the uplift mechanism of the volcanic plateaus. Geotherms constructed from travel time analysis of surface Raleigh and Love waves for central Mexico indicate a high thermal regime with partial molten material at the base of the crust. If this interpretation is correct, it provides a simple mechanism for close-to-trench volcanic activity and regional plateau uplift that incorporates a high thermal regime associated with low angle rapid subduction of a very young lithospheric plate.

773.1.#.t: Geofísica Internacional; Vol. 31 Núm. 4: Octubre 1, 1992; 493-507

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: 493-507

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

doi: https://doi.org/10.22201/igeof.00167169p.1992.31.4.1370

handle: 026f70ace24f6f94

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

856.#.0.q: application/pdf

file_creation_date: 2022-07-05 09:17:53.0

file_modification_date: 2022-07-26 13:34:35.0

file_creator: J. Urrutia-Fucugauchi

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245.1.0.b: Gravity modelling of regional crustal and upper mantle structure of the Guerrero terrane - 1. Colima graben and southern Sierra Madre Occidental, western Mexico.

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

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

license_type: by-nc-sa

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