Mn-53 in the Apollo 15 and 16 drill stems - Evidence for surface mixing

Details Mn-53 in the Apollo 15 and 16 drill stems - Evidence for surface mixing Mn-53 in the Apollo 15 and 16 drill stems - Evidence for surface mixing

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976lpsc....7...41n&link_type=abstract

In: Lunar Science Conference, 7th, Houston, Tex., March 15-19, 1976, Proceedings. Volume 1. (A77-34651 15-91) New York, Pergamon

Computer Science

8

Apollo Flights, Core Sampling, Lunar Core, Lunar Surface, Manganese Isotopes, Radioactive Age Determination, Data Acquisition, Drilling, Galactic Radiation, Sediment Transport, Solar Cosmic Rays, Solar Flux, Stratigraphy, Tables (Data)

Scientific paper

The activity of cosmic ray produced Mn-53 has been measured in a series of samples from the upper 10 cm of the Apollo 15 and 16 drill stems. The activity profiles for both cores indicate disturbance to depths of about 3 g/sq cm within the last 6 m.y. In at least one case (Apollo 16) the soil has been gardened to at least 14 g/sq cm within the last 10 m.y., and material from the upper less than 2 g/sq cm has been buried to 14 g/sq cm by this gardening. The results for the Apollo 15 core are compatible with a wide variety of possible histories including loss or gain of material.

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