dor_id: 4133204

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/987/929

100.1.#.a: Urrutia-fucugauchi, Jaime

524.#.#.a: Urrutia-fucugauchi, Jaime (1986). Late mesozoic-cenozoic evolution of the Northwestern Mexico magmatic arc zone. Geofísica Internacional; Vol. 25 Núm. 1: Enero 1, 1986; 61-84. Recuperado de https://repositorio.unam.mx/contenidos/4133204

245.1.0.a: Late mesozoic-cenozoic evolution of the Northwestern Mexico magmatic arc zone

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1986

264.#.1.c: 1986-01-01

653.#.#.a: Evolución téctonica; Tectónica; Margen continental; Rocas ígneas; Mesozoico tardío-Cenozoico; Tectonic evolution; Tectonics; Continental margin; Igneous rocks; Late Mesozoic-Cenozoic; 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/987

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/987

041.#.7.h: spa

520.3.#.a: Late Mesozoic - Cenozoic radiometric data on igneous rocks from the extensive magmatic province of northwestern Mexico are used to investiga te on the evolution of the continental margin. Results show that magmatic activity changed systematically with time from about 140 my B.P. to the present. Between about 140 and 60 my B.P. the trench-arc gap increased from about 100 to 400 km with a velocity varying from 1 to 12 cm/yr. The area covered by magmatic products also increased up to ~540 km, which, combined with the trench-arc gap changes, resulted in a ~1 200 km wide spatial magmatic are. Magmas were dominantly calc-alkaline and tectonism was predominantly compresiona!. Between about 60 and 35 - 30 my B.P., magmatic activity developed at points farthest from the trench, giving high-K calc-alkalic and alkaline rock suites. Tectonism changed from mainly compresional (Laramide orogeny, ~80-45 my B.P.) to mainly extensional (mid-Tertiary orogeny, ~35 - 15 my B.P. Finally, between about 35 - 30 and 10 - O my B.P., magmatic activity was rapidly displaced towards the trench and tectonism was mainly extensional. Bimodal volcanism developed including the emplacement of a thick ignimbritic sequence, and apparently continued long after cesation of active plate subduction. Major plate reorganization occurred during this interval, associated with the encounter of segments of the spreading center and trench, which resulted in replacement of plate subduction by transform motion. Major recent events include the development of the Gulf of California, about 15 my ago, with active spreading occurring mainly during the last 4.5 my. The changes observed in the trench-arc gap and in the width of the zone of magma tic manifestations are interpreted in terms of a model of variable subduction zone dips and variable depth and range of magma generation. Major factors involved were the change of age of the plate being subducted (progressively younger), rate of plate convergence, absolute motion of upper plate, sediment accretion, obduction, subduction of oceanic plateaus and tectonic extension. Relative importance of these factors, however, remains to be quantified.doi: https://doi.org/10.22201/igeof.00167169p.1986.25.4.774

773.1.#.t: Geofísica Internacional; Vol. 25 Núm. 1: Enero 1, 1986; 61-84

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: 61-84

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

doi: https://doi.org/10.22201/igeof.00167169p.1986.25.1.801

handle: 3db951940995d95f

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

856.#.0.q: application/pdf

file_creation_date: 2008-06-25 23:55:33.0

file_modification_date: 2022-07-11 14:10:12.0

file_creator: J. Urrutia Fucugauchi

file_name: 57a4a95d340b7dd591315d01be8ce16ffebc1bdaf2c552402491b4266687c33a.pdf

file_pages_number: 24

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245.1.0.b: Late mesozoic-cenozoic evolution of the Northwestern Mexico magmatic arc zone

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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