Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

Paleomagnetism of the Carboniferous-Permian Patquía formation, Paganzo Basin, Argentina: Implications for the apparent polar wander path for South America and Gondwana during the late Palaeozoic

Geuna, Silvana EvangelinaIcon ; Escosteguy, Leonardo Darío; Limarino, Carlos OscarIcon
Fecha de publicación: 12/2010
Editorial: Universidad de Barcelona
Revista: Geologica Acta
ISSN: 1695-6133
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Geología

Resumen

The magnetic properties of the Carboniferous-Permian red beds of the Patquía Formation at Punta del Viento, Sierra de Umango and some previously reported localities, all in the Paganzo Basin (Argentina) have been studied. Whereas all sites are characterized by hematite as the main magnetic carrier and a reversed-polarity magnetic remanence, we found a pattern of variation in magnetic properties along the integrated column for Patquía Formation. The Lower Member (Late Carboniferous) showed higher intensity of natural and saturation isothermal remanent magnetisation (NRM and SIRM, respectively) than the Permian Upper Member. The fall in NRM intensity from the Lower to Upper Member of the Patquía Formation may be related to a change in quantity and/ or grain-size of the hematite pigment, which may reflect the change in environmental and/or depositional setting. As for directional values of NRM, paleomagnetic poles reported for both sections are clearly different. The lower section provided a pole position coincident with Late Carboniferous poles for Gondwana, while the upper section poles are departed from the Early Permian position. We cannot decide whether the Upper Member pole is due to a primary magnetisation at 290 Ma or to a remagnetisation at ~260-270 Ma; even so, the obtained paleomagnetic pole is robust and indicates a rapid apparent polar wander in a ~30° counter clockwise rotation of the region, after deposition of the Late Carboniferous lower section, and in coincidence with the San Rafael Orogenic Phase.
Palabras clave: Apparent Polar Wander , Magnetic Remanence , Paleomagnetism , Red Beds
Ver el registro completo
 
Archivos asociados
Thumbnail
 
Tamaño: 836.1Kb
Formato: PDF
.
Descargar
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/68783
URL: http://revistes.ub.edu/index.php/GEOACTA/article/view/105.000001578
URL: https://www.redalyc.org/articulo.oa?id=50515686003
DOI: http://dx.doi.org/10.1344/105.000001578
Colecciones
Articulos(IGEBA)
Articulos de INSTITUTO DE GEOCIENCIAS BASICAS, APLICADAS Y AMBIENTALES DE BS. AS
Citación
Geuna, Silvana Evangelina; Escosteguy, Leonardo Darío; Limarino, Carlos Oscar; Paleomagnetism of the Carboniferous-Permian Patquía formation, Paganzo Basin, Argentina: Implications for the apparent polar wander path for South America and Gondwana during the late Palaeozoic; Universidad de Barcelona; Geologica Acta; 8; 4; 12-2010; 373-397
Compartir
Altmétricas
 

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES