"In each of the foregoing theories we obtain sound reasoning in connection with many facts. Therefore a correlation of these facts ought to give us enough material to deduct a sound theory. The most plausible supposition seems to be that all metallic ores are derived ultimately from the interior of the earth, from a great metallographic province, when they are delivered by igneous eruptives near or at the surface"--Conclusion With Reasons, page 29.
Cox, Guy Henry
B.S. in General Science
Missouri School of Mines and Metallurgy
ii, 30 pages
Lake Superior (Mich.)
© 1911 Eva Endurance Hirdler, All rights reserved.
Thesis - Open Access
Copper ores -- Michigan -- Lake Superior
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://merlin.lib.umsystem.edu/record=b1487984~S5
Hirdler, Eva Endurance, "A summary of the theories of the origin of the Lake Superior copper ores, with evidences pertaining thereto" (1911). Bachelors Theses. 39.