Agglutinates as indicators of lunar soil maturity - The rare gas evidence at Apollo 16The weight percent of lunar agglutinic glass (glass-welded aggregates resulting from micrometeorite impacts) in Apollo 16 bulk soils is considered with respect to quantities of trapped rare gases, e.g., He-4, Ne-20, Ar-36, Kr-84, and Xe-132, in an effort to determine the cumulative time a given soil sample has spent exposed on the lunar surface. The agglutinic glass, which reacts strongly in a magnetic field, is obtained by the standard fluid (methanol)-magnetic technique. It is noted that the absolute concentrations of trapped rare gases all show a linear relationship with increasing agglutinic glass content.
Document ID
19780062823
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Charette, M. P. (Washington Univ. Seattle, WA, United States)
Adams, J. B. (Washington, University Seattle, Wash., United States)