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Geotimes
Geotimes is published by the American Geological Institute, which is a nonprofit federation of 34 geoscientific and professional associations that represent more than 100,000 geologists, geophysicists, and other earth scientists. Founded in 1948, AGI provides information services to geoscientists, serves as a voice of shared interests in our profession, plays a major role in strengthening geoscience education, and strives to increase public awareness of the vital role the geosciences play in mankind's use of resources and interaction with the environment.
Volume 37, Number 7, October 1992
Cover: Photomicrograph of an Apollo 17 lunar basalt.
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