dor_id: 4141375

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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856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1643/1794

100.1.#.a: Anderson, Don L.; Sammis, Charles

524.#.#.a: Anderson, Don L., et al. (1969). The low velocity zone. Geofísica Internacional; Vol. 9 Núm. 1-3: Julio 1, 1969; 3-19. Recuperado de https://repositorio.unam.mx/contenidos/4141375

245.1.0.a: The low velocity zone

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1969

264.#.1.c: 1969-01-01

653.#.#.a: Sismología; Regiones tectónicas; Magma; Seismology; Tectonic regions; Magma

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/1643

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1643

041.#.7.h: spa

520.3.#.a: The low velocity zone in tectonic and oceanic regions is too pronounced to be the effect of high temperature gradients alone. Partial melting is consistent with the low velocity, low Q and abrupt boundaries of this region of the upper mantle and is also consistent with measured heat flow values. The inferred low melting temperatures seem to indicate that the water pressure is sufficiently high to lower the solidus about 200° C to 400° C below laboratory determinations of the melting point of anhydrous silicates. The mechanical instability of a partially molten layer in the upper mantle is probably an important source of tectonic energy. The top of the low-velocity zone can be considered a self-lubricated surface upon which the top of the mantle and the crust can slide with very little friction. Lateral motion of the crust and upper mantle away from oceanic rises is counterbalanced by the flow of molten material in the low-velocity layer toward the rise where it eventually emerges as newcrust. If this lateral flow of molten material is not as efficient as the upward removal of magma, the regions of extrusion, such as oceanic rises, will migrate.

773.1.#.t: Geofísica Internacional; Vol. 9 Núm. 1-3: Julio 1, 1969; 3-19

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: 3-19

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

doi: https://doi.org/10.22201/igeof.00167169p.1969.9.1-3.1214

handle: 00ed894c4a6344dd

harvesting_date: 2023-06-20 17:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2008-07-02 21:53:48.0

file_modification_date: 2022-07-04 18:21:11.0

file_creator: Don L. Anderson

file_name: 2fcede1fbe599cf188b350658980e57ff1e4e2eeed11959cf70696725065cebf.pdf

file_pages_number: 17

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file_size: 12265639

245.1.0.b: La zona de baja velocidad

last_modified: 2023-06-20 17:00:00

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

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Artículo

The low velocity zone

Anderson, Don L.; Sammis, Charles

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

Anderson, Don L., et al. (1969). The low velocity zone. Geofísica Internacional; Vol. 9 Núm. 1-3: Julio 1, 1969; 3-19. Recuperado de https://repositorio.unam.mx/contenidos/4141375

Descripción del recurso

Autor(es)
Anderson, Don L.; Sammis, Charles
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
The low velocity zone
Fecha
1969-01-01
Resumen
The low velocity zone in tectonic and oceanic regions is too pronounced to be the effect of high temperature gradients alone. Partial melting is consistent with the low velocity, low Q and abrupt boundaries of this region of the upper mantle and is also consistent with measured heat flow values. The inferred low melting temperatures seem to indicate that the water pressure is sufficiently high to lower the solidus about 200° C to 400° C below laboratory determinations of the melting point of anhydrous silicates. The mechanical instability of a partially molten layer in the upper mantle is probably an important source of tectonic energy. The top of the low-velocity zone can be considered a self-lubricated surface upon which the top of the mantle and the crust can slide with very little friction. Lateral motion of the crust and upper mantle away from oceanic rises is counterbalanced by the flow of molten material in the low-velocity layer toward the rise where it eventually emerges as newcrust. If this lateral flow of molten material is not as efficient as the upward removal of magma, the regions of extrusion, such as oceanic rises, will migrate.
Tema
Sismología; Regiones tectónicas; Magma; Seismology; Tectonic regions; Magma
Idioma
spa
ISSN
ISSN-L: 2954-436X; ISSN impreso: 0016-7169

Enlaces