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A Dot Chart for the Calculation of Gravitational and Magnetic Attraction of Two-Dimensional Bodies

By
Frank B. Millett, Jr.
Frank B. Millett, Jr.
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Published:
January 01, 1967

Abstract

The dot chart described in this paper is an adaptation of Hubbert’s graticule (1948). Like Hubbert’s graticule, it offers the field man, who does not have ready access to digital computers, a rapid method of calculating theoretical profiles due to two-dimensional bodies of infinite length. Since many geological features may be treated as twodimensional bodies, the dot chart is a useful tool instead of a geophysical curio.

The dot chart retains the capability of lineal integration provided by Hubbert’s graticule while, at the same time, it offers an intuitive insight to profile matching. The chart may be modified for bodies of finite length by the addition of partitioning circles. The body’s cross section may be modified for calculation of magnetic attraction.

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Contents

Mining Geophysics Volume II, Theory

Don A. Hansen
Don A. Hansen
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Walter E. Heinrichs, Jr.
Walter E. Heinrichs, Jr.
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Ralph C. Holmer
Ralph C. Holmer
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Robert E. MacDougall
Robert E. MacDougall
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George R. Rogers
George R. Rogers
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John S. Sumner
John S. Sumner
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Stanley H. Ward
Stanley H. Ward
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Society of Exploration Geophysicists
ISBN electronic:
9781560802716
Publication date:
January 01, 1967

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