Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.

A total of 120 sites with geochronological control have been sampled in the Transmexican Volcanic Belt (TMVB). They span the spatial and temporal activity of this volcanic arc. The mean paleomagnetic directions, obtained from volcanic rocks in the age range 10-5 Ma and 5-0 Ma, do not differ from the...

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Detalles Bibliográficos
Autor: Ruiz Martínez, Vicente Carlos
Tipo de recurso: artículo
Fecha de publicación:2004
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/52544
Acceso en línea:https://hdl.handle.net/20.500.14352/52544
Access Level:acceso abierto
Palabra clave:550.38
Paleomagnetism
Geomagnetic dispersion
Paleosecular variation of lavas
Transmexican Volcanic Belt
Geofísica
2507 Geofísica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/52544
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repository_id_str
spelling Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.Ruiz Martínez, Vicente Carlos550.38PaleomagnetismGeomagnetic dispersionPaleosecular variation of lavasTransmexican Volcanic BeltGeofísica2507 GeofísicaA total of 120 sites with geochronological control have been sampled in the Transmexican Volcanic Belt (TMVB). They span the spatial and temporal activity of this volcanic arc. The mean paleomagnetic directions, obtained from volcanic rocks in the age range 10-5 Ma and 5-0 Ma, do not differ from their respective reference directions. In both data sets, virtual geomagnetic poles (VCPs) have been selected using Fisher's precision parameters and optimum cutoft angles (Vandamme, 1994). This results in a circularly symmetrical data distribution with normal and reverse modes that are indistinguishable from antipodal. VCP dispersions are consistent with those from globally distributed observations analysed by McFadden et al. (1991) and McElhinny & McFadden (1997) tor the Miocene and the Plio-Quaternary, respectively. Abnormally low scatters of VCPs have been reported in previous studies of Miocene and Quaternary lavas of the TMVB. An analysis of all the published paleomagnetic data from this arc, when selected in terms of the same quality criteria, do not either support the persistence of a magnetic anomaly in the studied region, in agreement with the present study.Sociedad Geológica de España.Universidad Complutense de Madrid20042004-01-0120042004-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/52544reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/525442026-06-02T12:44:21Z
dc.title.none.fl_str_mv Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
title Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
spellingShingle Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
Ruiz Martínez, Vicente Carlos
550.38
Paleomagnetism
Geomagnetic dispersion
Paleosecular variation of lavas
Transmexican Volcanic Belt
Geofísica
2507 Geofísica
title_short Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
title_full Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
title_fullStr Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
title_full_unstemmed Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
title_sort Dispersión del campo magnético terrestre obtenida a partir de remanencias primarias en lavas.
dc.creator.none.fl_str_mv Ruiz Martínez, Vicente Carlos
author Ruiz Martínez, Vicente Carlos
author_facet Ruiz Martínez, Vicente Carlos
author_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 550.38
Paleomagnetism
Geomagnetic dispersion
Paleosecular variation of lavas
Transmexican Volcanic Belt
Geofísica
2507 Geofísica
topic 550.38
Paleomagnetism
Geomagnetic dispersion
Paleosecular variation of lavas
Transmexican Volcanic Belt
Geofísica
2507 Geofísica
description A total of 120 sites with geochronological control have been sampled in the Transmexican Volcanic Belt (TMVB). They span the spatial and temporal activity of this volcanic arc. The mean paleomagnetic directions, obtained from volcanic rocks in the age range 10-5 Ma and 5-0 Ma, do not differ from their respective reference directions. In both data sets, virtual geomagnetic poles (VCPs) have been selected using Fisher's precision parameters and optimum cutoft angles (Vandamme, 1994). This results in a circularly symmetrical data distribution with normal and reverse modes that are indistinguishable from antipodal. VCP dispersions are consistent with those from globally distributed observations analysed by McFadden et al. (1991) and McElhinny & McFadden (1997) tor the Miocene and the Plio-Quaternary, respectively. Abnormally low scatters of VCPs have been reported in previous studies of Miocene and Quaternary lavas of the TMVB. An analysis of all the published paleomagnetic data from this arc, when selected in terms of the same quality criteria, do not either support the persistence of a magnetic anomaly in the studied region, in agreement with the present study.
publishDate 2004
dc.date.none.fl_str_mv 2004
2004-01-01
2004
2004-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/52544
url https://hdl.handle.net/20.500.14352/52544
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España.
publisher.none.fl_str_mv Sociedad Geológica de España.
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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