Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 30 October 1970:
Vol. 170. no. 3957, pp. 533 - 535
DOI: 10.1126/science.170.3957.533
Prev | Table of Contents | Next

Articles

Apollo 12 Lunar Samples: Trace Element Analysis of a Core and the Uniformity of the Regolith

R. Ganapathy 1, Reid R. Keays 1, and Edward Anders 1

1 Enrico Fermi Institute and Department of Chemistry, University of Chicago, Chicago, Illinois 60637

Four core and soil samples from Apollo 12 are enriched in a number of trace elements of meteoritic origin to virtually the same degree as Apollo 11 soil. An average meteoritic influx rate of about 4 x 10-9 gram per square centimeter per year thus seems to be valid for the entire moon. A sample from a light gray, coarse-grained layer in the core resembles lunar basalts in composition, but is enriched by factors of 104 to 105 in bismuth and cadmium.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Moon: Possible Nature of the Body That Produced the Imbrian Basin, from the Composition of Apollo 14 Samples.
R. Ganapathy, R. Ganapathy, J. C. Laul, J. W. Morgan, and E. Anders (1972)
Science 175, 55-59
   Abstract »    PDF »


To Advertise     Find Products

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