IGEBA   23946
INSTITUTO DE GEOCIENCIAS BASICAS, APLICADAS Y AMBIENTALES DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
REVISIÓN DE LA CURVA DE DERIVA POLAR APARENTE DE GONDWANA DURANTE EL PALEOZOICO SUPERIOR, IMPLICANCIAS SOBRE LA CONFIGURACION DE PANGEA
Autor/es:
LEANDRO C. GALLO; ROBERTO MARIO HERNANDEZ; ALEJANDRA DALENZ FARJAT; RENATA N. TOMEZZOLI
Revista:
LatinMag Letters
Editorial:
Universidad Nacional Autónoma de México
Referencias:
Año: 2016 vol. 6
ISSN:
2007-9656
Resumen:
In order to build an apparent polar wander path (APWP) we have undertaken a rigorous selection of paleomagnetic poles (PP) belonging to Gondwana (South America, Africa, Antarctica and Australia) from the Carboniferous to the Triassic. The APWP has 78 PP obtained from sedimentary rocks corrected for inclination shallowing, from sedimentary rocks with syn or post-tectonic magnetizations, where the age of the magnetization is restricted and from igneous rocks that are regarded as free from any inclination shallowing bias. The use of PP from all around Gondwana shows geometrically that they would not be substantially affected by inclination shallowing. Visual consistency obtained for each age range supports the construction of this Paleozoic APWP. The results allow a tectonic model for the evolution consistent with a B type Pangea configuration for the Permian and a subsequent transition to Pangea A during the Upper Permian and Triassic.