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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/npg-2016-75
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/npg-2016-75
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

  13 Jan 2017

13 Jan 2017

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This preprint has been retracted.

Full-tensor gravity gradient eigenvector analysis for locating complex geological source positions

Boxin Zuo1, Mason Andrew Kass2, Xiangyun Hu3, and Meixia Geng3 Boxin Zuo et al.
  • 1Hubei Key Laboratory of Intelligent Geo-Information Processing, China University of Geosciences, Wuhan 430074, China
  • 2U. S. Geological Survey, Colorado, United States
  • 3Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China

Abstract. We develop an eigenvector analysis method to locate the centroids and horizontal boundaries of geological structures of full tensor gravity gradient (GGT) data. Although the boundary detection method for Bouguer gravity has been widely discussed and applied, the source location method for GGT data remains an area of active research. In this paper, we first discuss the theoretical basis and physical meaning of the eigenvector analysis on GGT data, and then a new source location method is derived. Unlike traditional potential field boundary detection, the proposed method uses eigenvector analysis to extract the source centroid information. The interference of multiple and overlapping sources and the parameter identification related with the multiple scales of the GGT eigenvector analysis are presented in the theoretical and experimental sections. Finally, the proposed method is applied to synthetic and field data.

This preprint has been retracted.

Boxin Zuo et al.

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Boxin Zuo et al.

Boxin Zuo et al.

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Short summary
Gravity gradiometry is the study and measurement of spatial change rate of gravitational acceleration. In this paper, we develop an eigenvector analysis method to locate the centroids and horizontal boundaries of sources of gravity gradient data. The proposed method can provide a clear map of the buried complex geological sources. It can be used as an effective tool for locating the positions of exploration wells, or in 3D gravity gradient inversion algorithms.
Gravity gradiometry is the study and measurement of spatial change rate of gravitational...
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