Inert Gases in Lunar Samples

Details Inert Gases in Lunar Samples Inert Gases in Lunar Samples

Jan 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970sci...167..555h&link_type=abstract

Science, Volume 167, Issue 3918, pp. 555-558

Computer Science

4

Scientific paper

Sample 10084,40 (fines, less than 1 millimeter) contains substantial amounts of the inert gases. Their concentrations are inversely proportional to particle size; hence the gases appear to be surface-correlated in the soil fragments. The most likely origin of the gas is solar wind or solar cosmic rays. Glass and feldspar are generally poorer in gas than lithic fragments. Ratios of elements in the sample differ significantly from solar values. Ratios of isotopes in the sample are similar to those in meteorites. Argon-40 appears to consist of a radiogenic and a surface-correlated component. An apparent potassium-argon age of 4.42-0.28+0.24 billion years is calculated.

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