Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina

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Regional studies of Sq variations measured at five permanent observatories in Argentina were performed to estimate the distribution of the electrical conductivity of the upper and mid-mantle, reaching a depth of approximately 800 km. After separating the total field into its parts of external and in...

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Autores principales: Osella, A., Favetto, A., Martinelli, P.
Formato: JOUR
Materias:
Lateral electrical heterogeneities
mantle conductivity in Argentina
Sq field
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00334553_v141_n1_p139_Osella
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00334553_v141_n1_p139_Osella
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spelling todo:paper_00334553_v141_n1_p139_Osella2023-10-03T14:45:41Z Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina Osella, A. Favetto, A. Martinelli, P. Lateral electrical heterogeneities mantle conductivity in Argentina Sq field Regional studies of Sq variations measured at five permanent observatories in Argentina were performed to estimate the distribution of the electrical conductivity of the upper and mid-mantle, reaching a depth of approximately 800 km. After separating the total field into its parts of external and internal origin, the in duced field was modeled, applying two-dimensional techniques. Additionally, induction arrows and an equivalent apparent resistivity curve were calculated A north-south heterogeneity was detected, showing an increase of the conductivity of the shallower layers north of the profile, which may be related to the presence of high volcanic activity in the area. © 1993 Birkhäuser Verlag. Fil:Osella, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Favetto, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00334553_v141_n1_p139_Osella
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Lateral electrical heterogeneities
mantle conductivity in Argentina
Sq field
spellingShingle Lateral electrical heterogeneities
mantle conductivity in Argentina
Sq field
Osella, A.
Favetto, A.
Martinelli, P.
Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina
topic_facet Lateral electrical heterogeneities
mantle conductivity in Argentina
Sq field
description Regional studies of Sq variations measured at five permanent observatories in Argentina were performed to estimate the distribution of the electrical conductivity of the upper and mid-mantle, reaching a depth of approximately 800 km. After separating the total field into its parts of external and internal origin, the in duced field was modeled, applying two-dimensional techniques. Additionally, induction arrows and an equivalent apparent resistivity curve were calculated A north-south heterogeneity was detected, showing an increase of the conductivity of the shallower layers north of the profile, which may be related to the presence of high volcanic activity in the area. © 1993 Birkhäuser Verlag.
format JOUR
author Osella, A.
Favetto, A.
Martinelli, P.
author_facet Osella, A.
Favetto, A.
Martinelli, P.
author_sort Osella, A.
title Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina
title_short Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina
title_full Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina
title_fullStr Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina
title_full_unstemmed Lateral heterogeneities in the upper and mid-mantle conductivity in Argentina
title_sort lateral heterogeneities in the upper and mid-mantle conductivity in argentina
url http://hdl.handle.net/20.500.12110/paper_00334553_v141_n1_p139_Osella
work_keys_str_mv AT osellaa lateralheterogeneitiesintheupperandmidmantleconductivityinargentina
AT favettoa lateralheterogeneitiesintheupperandmidmantleconductivityinargentina
AT martinellip lateralheterogeneitiesintheupperandmidmantleconductivityinargentina
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