Masters Theses
Abstract
"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.
Advisor(s)
Rupert, Gerald B., 1930-2016
Committee Member(s)
Zenor, Hughes M., 1908-2001
Maxwell, James C.
Clark, George Bromley, 1912-
Department(s)
Mining Engineering
Degree Name
M.S. in Mining Engineering
Publisher
Missouri School of Mines and Metallurgy
Publication Date
1961
Pagination
viii, 66 pages
Note about bibliography
Includes bibliographical references (pages 33-34).
Geographic Coverage
Christian County, Missouri
Rights
© 1961 Edwin J. Ballantyne, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Geophysics -- Missouri -- Christian CountyGeology, Stratigraphic -- PrecambrianPeridotite -- Missouri -- Christian County
Thesis Number
T 1345
Print OCLC #
5936012
Electronic OCLC #
982493000
Recommended Citation
Ballantyne, Edwin J. Jr., "A geophysical investigation of an area in Christian County, Missouri" (1961). Masters Theses. 4171.
https://scholarsmine.mst.edu/masters_theses/4171
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
