Masters Theses


"A vertical intensity magnetic survey of 144 square miles in Christian County, southwest Missouri revealed an 825 gamma anomaly having a closure of 9 square miles. A three mile gravity traverse across the magnetic anomaly detected a positive gravity anomaly in excess of six mllligals.

Calculations showed that a Precambrian hill large enough to cause the observed magnetic anomaly would outcrop at the surface. Because Precambrian rocks are known to be buried under a sedimentary layer, this hypothesis was rejected.

Theoretical anomalies of several geometrical bodies at calculated depths were visually compared with the measured magnetic and gravity profiles. A peridotite plug, depth 4,000 feet, vertical thickness 14,000 feet, cross-sectional radius 4,200 feet; a diabase plug of the same dimensions with heavy non-magnetic sulfide minerals present; and a diabase plug, depth 2,400 feet, vertical thickness 15,600 feet, cross- sectional radius 4,800 feet produced the necessary theoretical anomalies.

On the basis of present geophysical and geological evidence, the structure is not of economic importance"--Abstract, page ii.


Rupert, Gerald B., 1930-2016

Committee Member(s)

Zenor, Hughes M., 1908-2001
Maxwell, James C.
Clark, George Bromley, 1912-


Mining and Nuclear Engineering

Degree Name

M.S. in Mining Engineering


Missouri School of Mines and Metallurgy

Publication Date



viii, 66 pages

Note about bibliography

Includes bibliographical references (pages 33-34).

Geographic Coverage

Christian County, Missouri


© 1961 Edwin J. Ballantyne, All rights reserved.

Document Type

Thesis - Open Access

File Type




Library of Congress Subject Headings

Geophysics -- Missouri -- Christian County
Geology, Stratigraphic -- Precambrian
Peridotite -- Missouri -- Christian County

Thesis Number

T 1345

Print OCLC #


Electronic OCLC #


Ballantyne-Edwin-1961-Plate-I.tif (33008 kB)
Magnetic Map Showing Location of Mines and Prospects, Christian County, Missouri

Ballantyne-Edwin-1961-Plate-II.tif (33386 kB)
United States Geological Survey Topographic Map of the Ozark Quadrangle

Ballantyne-Edwin-1961-Plate-III.tif (32350 kB)
United States Geological Survey Topographic Map of the Fordland Quadrangle

Ballantyne-Edwin-1961-Plate-IV.tif (34131 kB)
United States Geological Survey Topographic Map of the Selmore Quadrangle

Ballantyne-Edwin-1961-Plate-V.tif (33639 kB)
United States Geological Survey Topographic Map of the Chadwick Quadrangle

Ballantyne-Edwin-1961-Plate-VI.tif (33430 kB)
United States Geological Survey Topographic Map of the Bradleyville Quadrangle


Thesis Location