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Science 26 March 1971:
Vol. 171. no. 3977, pp. 1245 - 1246
DOI: 10.1126/science.171.3977.1245
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Articles

Lunar and Terrestrial Ilmenite Basalt

S. S. Goldich 1

1 Department of Geology, Northern Illinois University, DeKalb 60115

A basalt hornfels from the Keweenawan Duluth complex in Minnesota contains 7 percent by weight of titanium dioxide and is similar in many respects to the Apollo 11 samples. Hornfels texture, as well as primary textures in lunar rocks, resemble those in Keweenawan rocks.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)