An improved Naudy-based technique for estimating depth from magnetic profiles

Z. Shi

doi:10.1071/EG991357

ISSN: 0812-3985
E-ISSN: 1834-7533

An improved Naudy-based technique for estimating depth from magnetic profiles
Authors Z. Shi^a
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^a Department of Geology and GeophysicsUniversity of Adelaide, G.P.O. Box 498 Adelaide, S.A, . 5001
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 22, Issue 2, Jun 1991, p. 357 - 362
DOI: https://doi.org/10.1071/EG991357
- Published online: 01 Jun 1991

Abstract

Techniques for automatic determination of the depths of sources from magnetic profiles represent fast and inexpensive interpretation tools. The automatic technique proposed by Naudy is widely used. This technique requires accurate locations of the centers of anomalies in order to obtain reliable final estimation of the depths.

In the proposed improvement in the Naudy technique, the total magnetic fields on the profiles are split into horizontal and vertical components. It is demonstrated that this procedure leads to accurate locations of the centers of anomalies. Final estimates of the depths are less ambiguous and agree well with data obtained from drilling.

Application of the Naudy technique to vertical gradient data is discussed.

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1991-06-01

2026-01-19

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References

Naudy, H., (1971). ‘Automatic determination of depth on aeromagnetic rofiles’. Geophysics, 36, 717-722.
Shi, Z., (1980). ‘Components transformations on potential field profile data in frequency domain’. Group for Potential Field Studies, Beijing Computer Center, Ministry of Geology and Mineral Resources (unpublished).

/content/journals/10.1071/EG991357

Article Type: Research Article

Keyword(s): automatic depth estimation; magnetic profile; Naudy technique; similarity coefficient; vertical gradient

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An improved Naudy-based technique for estimating depth from magnetic profiles

Abstract

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