dor_id: 41851

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

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336.#.#.3: Artículo de Investigación

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351.#.#.b: Geofísica Internacional

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856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1142/1120

100.1.#.a: Skehan, James W.; J., S.

524.#.#.a: Skehan, James W., et al. (1973). Subduction zone between the paleo-american and the paleo-african plates in New England. Geofísica Internacional; Vol. 13 No. 4, 1973. Recuperado de https://repositorio.unam.mx/contenidos/41851

245.1.0.a: Subduction zone between the paleo-american and the paleo-african plates in New England

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1973

264.#.1.c: 2013-01-21

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001.#.#.#: oai:ojs.ojs.geofisica.unam.mx:article/1142

041.#.7.h: spa

520.3.#.a: Cambrian and Tremadocian faunas of the Acado-Baltic Province have remarkable simiralities on both sides of the Atlantic (Fig. 1). Lower and Middle Cambrian representatives of this province are present in eastern Massachussetts, whereas Pacific Province faunas are present in nearby western New England and eastern New York. The Boston Border Fault and its presumed continuation to the south marks the western margin of the palco-African Plate which contains the Acado-Baltic faunal localities (Fig. 2). Inmmediately west of the Acado-Baltic localities in Massachussetts is a sequence of rocks interpreted as an ophiolite suite (Fig. 3, 4 and 5), marking a subduction zone whose western margin is marked by the Clinton-Newbury Fault Zone (Fig. 3). The trace of this fault is marked by the most conspicuous magnetic lineament in southeastem. New England (Fig. 6) and is interpreted as the eastern margin of the Paleo-American Plate. The Marlboro and Nashoba Formations and younger Unnamed Formations (Fig. 3 and 4) whose protoliths consist of sea floor metavolcanics and metasediements of the opgiolite suite, represent ensimatic crust, squeezed and intensely deformed between the two paleo-plates. Thus a collision boundary between two continental plates (Fig. 7) is hypothesized for the northern Appalachians. I infer that plate tectonic mechanisms have been operative since at least the end of Precambrian time.

773.1.#.t: Geofísica Internacional; Vol. 13 No. 4 (1973)

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

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Artículo

Subduction zone between the paleo-american and the paleo-african plates in New England

Skehan, James W.; J., S.

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

Skehan, James W., et al. (1973). Subduction zone between the paleo-american and the paleo-african plates in New England. Geofísica Internacional; Vol. 13 No. 4, 1973. Recuperado de https://repositorio.unam.mx/contenidos/41851

Descripción del recurso

Autor(es)
Skehan, James W.; J., S.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Subduction zone between the paleo-american and the paleo-african plates in New England
Fecha
2013-01-21
Resumen
Cambrian and Tremadocian faunas of the Acado-Baltic Province have remarkable simiralities on both sides of the Atlantic (Fig. 1). Lower and Middle Cambrian representatives of this province are present in eastern Massachussetts, whereas Pacific Province faunas are present in nearby western New England and eastern New York. The Boston Border Fault and its presumed continuation to the south marks the western margin of the palco-African Plate which contains the Acado-Baltic faunal localities (Fig. 2). Inmmediately west of the Acado-Baltic localities in Massachussetts is a sequence of rocks interpreted as an ophiolite suite (Fig. 3, 4 and 5), marking a subduction zone whose western margin is marked by the Clinton-Newbury Fault Zone (Fig. 3). The trace of this fault is marked by the most conspicuous magnetic lineament in southeastem. New England (Fig. 6) and is interpreted as the eastern margin of the Paleo-American Plate. The Marlboro and Nashoba Formations and younger Unnamed Formations (Fig. 3 and 4) whose protoliths consist of sea floor metavolcanics and metasediements of the opgiolite suite, represent ensimatic crust, squeezed and intensely deformed between the two paleo-plates. Thus a collision boundary between two continental plates (Fig. 7) is hypothesized for the northern Appalachians. I infer that plate tectonic mechanisms have been operative since at least the end of Precambrian time.
Idioma
spa
ISSN
0016-7169

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