Interpretation of major structures of payenia applying the gravimetric potential method

Authors

  • Sheila Anci Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Francisco Ruiz Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Federico Lince Klinger Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Flavia Leiva Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Marcos Sanchez Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Orlando Álvarez Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Héctor García Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan
  • Gemma Acosta Instituto Geofísico Sismológico “Ing. F. S. Volponi” – FCEFN - Universidad Nacional de San Juan y CONICET. San Juan

Keywords:

oil exploration, 3D inversion gravimetric models, thickness

Abstract

The Andean depocenters in the northwestern border of the Neuquén basin, in the geologic province of Payenia, were characterized by means of the analyzed methods to support hydrocarbon exploration in the area. These techniques allowed studying the upper crust structures to perform oil exploration. Gravity measurements were effected and supported with GDPS (700 stations). More than 10,000 gravity values, which were provided from several campaigns over the last three decades and which constitute the database of the Geophysics and Seismological Institute “Volponi”, were also used and checked. Bouguer gravity anomalies were mapped and filtered to study the upper crust sources. We made a 3D model (by gravity inversion) integrating geological and geophysical data that emphasized the resolution of the structures placed in this area. The 3D model of the sedimentary thickness takes into account lateral and vertical density variations obtained from local wells. This model allowed identification in 2D of high and low structures studied by other authors as wellas a sub-basin, not reported up to now, found on the eastern edge of the fold and thrust belt of Malargüe that is wedged into a raised basement block belonging to the San Rafael block.

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Published

2014-03-03

How to Cite

Anci, S., Ruiz, F., Lince Klinger, F., Leiva, F., Sanchez, M., Álvarez, O., García, H., & Acosta, G. (2014). Interpretation of major structures of payenia applying the gravimetric potential method. Geoacta, 39(1), 11–19. Retrieved from https://revistas.unlp.edu.ar/geoacta/article/view/13458

Issue

Vol. 39 No. 1 (2014)

Section

Scientific work

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Copyright (c) 2014 Sheila Anci, Francisco Ruiz, Federico Lince Klinger, Flavia Leiva, Marcos Sanchez, Orlando Álvarez, Héctor García, Gemma Acosta

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