Geophysical data inversion of the Barreiro Alkaline Complex, Araxá (MG), Brazil

Authors

  • Wanderson Roberto Pereira Universidade de São Paulo; Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Departamento de Geofísica
  • Marta Silvia Maria Mantovani Universidade de São Paulo; Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Departamento de Geofísica

DOI:

https://doi.org/10.5327/Z1519-874X2012000200002

Keywords:

Alkaline complex, Geophysical inversion, Gravity, Magnetics

Abstract

This paper shows the results of the use of geophysical data inversion techniques to develop a tree-dimensional model of the Barreiro Alkaline Complex based on its response to the application of potential methods. The model shows a geologically viable subsurface distribution of physical properties, with a maximum density contrast of 0.45 g/cm³, and a magnetic susceptibility of 0.235 (SI), and good geometric matching, resulting in a body of about 4.5 km in diameter and a volume greater than 37 km³, as well as a good correlation between the distribution of physical properties and the geological setting of the Complex.

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Published

2012-08-01

Issue

Vol. 12 No. 2 (2012)

Section

Articles

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How to Cite

Pereira, W. R., & Mantovani, M. S. M. (2012). Geophysical data inversion of the Barreiro Alkaline Complex, Araxá (MG), Brazil . Geologia USP. Série Científica, 12(2), 15-30. https://doi.org/10.5327/Z1519-874X2012000200002