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Calculation of gravity and magnetic anomalies of finite-length right polygonal prisms.

Geophysics

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DOI: 10.1190/1.1441045

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Abstract

An equation is derived for the vertical gravity field due to a homogeneous body with polygonal cross‐section and finite strike‐length. The equation can be separated into the two‐dimensional (2-D) terms of Talwani et al. (1959) and exact terms for the contributions of the ends of the prism. Equations for the magnetic field due to a similar body were derived by Shuey and Pasquale (1973), who coined the term “two‐and‐a‐half dimensional” (2 1/2-D) to describe the geometry. Magnetic intensities are expressed as a vector sum, from which the common dot product formulation can be obtained by binomial expansion.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Calculation of gravity and magnetic anomalies of finite-length right polygonal prisms.
Series title:
Geophysics
DOI:
10.1190/1.1441045
Volume
45
Issue:
10
Year Published:
1980
Language:
English
Publisher:
Society of Exploration Geophysicists
Description:
6 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1507
Last page:
1512