Calculation of gravity and magnetic anomalies of finite-length right polygonal prisms.
Geophysics
By: J. W. Cady
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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.
Suggested Citation
Cady, J.W., 1980, Calculation of gravity and magnetic anomalies of finite-length right polygonal prisms.: Geophysics, v. 45, no. 10, p. 1507-1512, https://doi.org/10.1190/1.1441045.
| 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 |
| Larger Work Title | Geophysics |
| First page | 1507 |
| Last page | 1512 |