dor_id: 4133440

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/331/316

100.1.#.a: Cejudo Ruiz, R.; Goguitchaichvili, A.; Morales, J.; Trindade, R. I. F.; Alva Valdivia, L. M.; Urrutia-fucugauchi, J.

524.#.#.a: Cejudo Ruiz, R., et al. (2009). Absolute Thellier paleointensities from Ponta Grossa dikes (southern Brazil) and the early Cretaceous geomagnetic field strength. Geofísica Internacional; Vol. 48 Núm. 2: Abril 1, 2009; 243-252. Recuperado de https://repositorio.unam.mx/contenidos/4133440

245.1.0.a: Absolute Thellier paleointensities from Ponta Grossa dikes (southern Brazil) and the early Cretaceous geomagnetic field strength

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

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2009

264.#.1.c: 2009-04-01

653.#.#.a: Cretácico temprano; paleointensidades; magnetismo de rocas; diques Ponta Grossa; cuenca del Paraná; Brasil; Early Cretaceous; paleointensity; rock magnetism; Ponta Grossa dike swarms; Paraná basin; Brazil

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/331

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/331

041.#.7.h: spa

520.3.#.a: We report a detailed rock magnetic and Thellier paleointensity study from  130.5 Ma Ponta Grossa Dike Swarms in Southern Brazil. Twenty–nine samples from seven cooling units were pre–selected for paleointensity experiments based on their low viscosity index, stable remanent magnetization and close to reversible continuous thermomagnetic curves. 19 samples characterized by negative pTRM tests, Arai concave–up curves or positive pTRM tests with NRM loss uncorrelated with TRM acquisition were rejected. High quality reliable paleointensity determinations are determined from detailed evaluation criteria, with 10 samples belonging to three dikes passing the tests. The site–mean paleointensity values obtained in this study range from 25.6 ± 4.3 to 11.3 ± 2.1 µT and the corresponding VDMs range from 5.7 ± 0.9 to 2.5 ± 0.5 (1022 Am2). These data yield a VDM mean value of 4.1 ± 1.6 x 1022 Am2. Significant variability of Earths magnetic field strength is observed for Ponta Grossa Dikes with the mean value being significantly lower as compared to the mean VDM obtained from the nearby Paraná Magmatic Province. The paleointensities for the Ponta Grossa Dikes are in agreement with absolute paleointensities retrieved from the submarine basaltic glasses from 130 to 120 Ma. It seems that a relatively low field prevailed just before the Cretaceous Normal Superchron.doi: https://doi.org/10.22201/igeof.00167169p.2009.48.2.2142  

773.1.#.t: Geofísica Internacional; Vol. 48 Núm. 2: Abril 1, 2009; 243-252

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: 243-252

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

doi: https://doi.org/10.22201/igeof.00167169p.2009.48.2.2142

handle: 0088064c493095ef

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

856.#.0.q: application/pdf

file_creation_date: 2009-03-25 19:44:19.0

file_modification_date: 2022-05-30 14:46:30.0

file_creator: Cejudo Ruiz R.

file_name: 6289a18e6236017b0e65074ffc819b971cd1f9da7da3d9b53ddcb92c7dfcc9de.pdf

file_pages_number: 10

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file_size: 874287

245.1.0.b: Absolute Thellier paleointensities from Ponta Grossa dikes (southern Brazil) and the early Cretaceous geomagnetic field strength

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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