What is it about?
The Structural Index is a fundamental parameter of almost all gravity or magnetic depth estimation methods. Its important to understand what it is and how to use it.
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Why is it important?
If you assume an SI (implicitly or explicitly) without some thought, your depth estimates are likely to be significantly biased, shallow or deep.
Perspectives
This paper is part of series, starting with Reid, A. B., Allsop, J. M., Granser, H., Millett. A. J. & Somerton, I. W., 1990. Magnetic interpretation in three dimensions using Euler deconvolution. Geophysics 55, p 80-91.
Dr Alan B Reid
University of Leeds
Read the Original
This page is a summary of: The structural index in gravity and magnetic interpretation: Errors, uses, and abuses, Geophysics, July 2014, Society of Exploration Geophysicists,
DOI: 10.1190/geo2013-0235.1.
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