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Regolith history from cosmic-ray-produced isotopes
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fireman, E. L. |
| Copyright Year | 1974 |
| Description | A statistical model is given for soil development relating meteoroid impacts on the moon to cosmic-ray-produced isotopes in the soil. By means of this model, the average lunar mass loss rate during the past 1.4 aeons is determined to be 170g/sq cm aeon and the soil mixing rate to be approximately 200 cm/aeon from the gadolinium isotope data for the Apollo 15 and 16 drill stems. The isotope data also restrict the time variation of the meteoroid flux during the past 1.4 aeons. |
| File Size | 481989 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740018164 |
| Archival Resource Key | ark:/13960/t5dc2t18p |
| Language | English |
| Publisher Date | 1974-04-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Impact Statistical Analysis Apollo 15 Flight Models Lunar Soil Gadolinium Isotopes Isotopes Meteoroids Cosmic Rays Apollo 16 Flight Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
