J. Amigo, M. P. Iglesia Llanos, D. A. Kietzmann
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Latinmag Letters, Volume 6, Special Issue (2016), B02, 1-3. Proceedings São Paulo, Brasil
El estudio paleomagnético se llevó a cabo en una sección ubicada en el norte de la provincia de Neuquén, República Argentina, denominada Puerta Curaco, correspondiente al Jurásico Superior- Cretácico Inferior de Cuenca Neuquina. El análisis se concentró en la Formación Vaca Muerta, que presenta un espesor aproximado de 400 metros y porta amonites de la Región Andina en facies de rampa carbonática media a distal. Esta unidad geológica es bien conocida, ya que representa uno de los reservorios no convencionales de petróleo y gas más importantes del mundo. Los sitios paleomagnéticos se ubican, en promedio, cada 5 metros. Así, se aislaron polaridades magnéticas, las cuales fueron ubicadas enteramente en relación a las biozonas de amonites de la Región Andina. A partir de ello, se elaboró la escala magnetoestratigráfica para el Jurásico Tardío- Cretácico Temprano en Cuenca Neuquina, que presenta una excelente correlación con la escala geomagnética internacional.
The paleomagnetic study was carried out in the North of the province of Neuquen, Argentina, in a section
called Puerta Curaco that spans the Upper Jurassic- Lower Cretaceous. The analysis was focused in the
Vaca Muerta Formation which is ca.400 m- thick and bears ammonites from the Andean Region in middle
to outer ramp facies. This geological unit is well- known because it represents one of the most important
unconventional reservoirs of oil and gas in the world. Paleomagnetic sites were located in average, every
5 meters. Several magnetic polarities were isolated, and thoroughly placed with respect to the Andean
ammonite biozones. Consequently, a magnetostratigraphic scale has been constructed for the Late Jurassic-Early Cretaceous in the Neuquen basin, which displays a precise correlation with the international
geomagnetic polarity time scale.
called Puerta Curaco that spans the Upper Jurassic- Lower Cretaceous. The analysis was focused in the
Vaca Muerta Formation which is ca.400 m- thick and bears ammonites from the Andean Region in middle
to outer ramp facies. This geological unit is well- known because it represents one of the most important
unconventional reservoirs of oil and gas in the world. Paleomagnetic sites were located in average, every
5 meters. Several magnetic polarities were isolated, and thoroughly placed with respect to the Andean
ammonite biozones. Consequently, a magnetostratigraphic scale has been constructed for the Late Jurassic-Early Cretaceous in the Neuquen basin, which displays a precise correlation with the international
geomagnetic polarity time scale.
https://www.researchgate.net/profile/Diego_Kietzmann/publication/306620066_RESULTADOS_MAGNETOESTRATIGRAFICOS_PRELIMINARES_DEL_LIMITE_JURASICO-CRETACICO_EN_CUENCA_NEUQUINA_REPUBLICA_ARGENTINA/links/57bf624908ae2f5eb32e908c/RESULTADOS-MAGNETOESTRATIGRAFICOS
