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Flux and isotopic composition of helium in the ancient solar wind

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Abstract

The isotopic composition and concentrations of helium are investigated in 9 samples taken from different depths of a soil column delivered by the Luna-24 mission. It is demonstrated that, with allowance made for random errors, the isotopic composition of helium remains invariable. The concentrations of helium are subject to considerable variations, the increases and decreases relative to the average value reaching a factor of 1.5–2. Assuming that the full length of the soil column was formed due to long-term accumulation of lunar clastic rocks (regolith), based on measurements of cosmogenic isotopes, a method of determining the rate of regolith accumulation has been developed, as well as a method of determining the age of the column soil samples. It is found that the rate of regolith accumulation is variable, and it changes over the column length within the limits (0.2–0.8 cm)/106 years. The range of the time for formation of the investigated part of the column is 100–600 million years. The observed decreases of concentration (at 250 and 600 million years) can be associated with both solar and lunar processes. In particular, a possibility of diffusion losses of helium due to the mechanism of jump-like diffusion is discussed, and diffusion parameters are found. A comparison of time periods of the observed variations in the solar wind with paleontological epochs and periods is made.

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References

  1. Zadorozhnyi, I.K. and Ivanov, A.V., The Content and Isotopic Composition of Inertial Gases in Basic Samples of Luna-24 Regolith, in Lunnyi grunt iz Morya Krizisov (Lunar Soil from Mare Crisium), Moscow: Nauka, 1980, pp. 387–394.

  2. Bogard, D.D. and Hirsh, W.C., Noble Gas Studies on Grain Site Separates of Apollo 15 and 16 Deep Drill Cores, Proc. 6th Lunar. Sci. Conf., 1975, vol. 2, pp. 2067–2083.

    Google Scholar 

  3. Vinogradov, F.P. and Zadorozhnyi, I.K., Inertial Gases in Regolith from Mare Fecunditatis, in Lunnyi grunt iz Morya Izobiliya (Lunar Soil from Mare Fecunditatis), Moscow: Nauka, 1974, pp. 379–386.

  4. Anufriev, G.S., Boltenkov, B.S., Volkov, I.I., and Kapitonov, I.N., Growth Rate of Oceanic Ferromanganese Nodules Based on Helium and Neon Stable Isotopes, Litol. Polezn. Iskop., 1996, no. 1, pp. 3–11.

    Google Scholar 

  5. Alekseev, V.A., History of Ordinary Chondrites Traced by Data on Stable Isotopes of Inertial Gases, Astron. Vestn., 2004, vol. 38, no. 3, pp. 225–234.

    Google Scholar 

  6. Leya, I., Lange, H.-R., Heumann, S., et al., The Production of Cosmogenic Nuclides by Galactic Cosmic-Ray Particles for 2fy Exposure Geometries, Meteoritics and Planet. Sci., 2001, vol. 36, pp. 1547–1561.

    Article  ADS  Google Scholar 

  7. Eberhardt, P., Geiss, J., Graf, H., et al., Trapped Solar Wind Noble Gases, Exposure Age and K/Ar-Age in Apollo 11 Lunar Fine Material, Proc. Apollo 11 Lunar Sci. Conf., Houston, 1970, vol. 2, pp. 1037–1070.

    ADS  Google Scholar 

  8. Rode, O.D, Ivanov, A.V., Tarasov, L.S., and Korina, M.I., General Lithologic and Morphologic Characteristic of the Luna-24 Regolith Column, Geokhimiya, 1977, no. 10, pp. 1465–1476.

    ADS  Google Scholar 

  9. Anufriev, G.S. and Galimov, E.M., Loss of Helium by Lunar Regolith, Dokl. Akad. Nauk, 2008, vol. 420, no. 6, pp. 805–807.

    Google Scholar 

  10. Anufriev, G.S., Boltenkov, B.S., Usacheva, L.V., and Kapitonov, I.N., Variations of Isotope Composition of According to Gases during Solar Flares (Rate Lunar Rock Samples), Izv. Akad. Nauk SSSR, Ser. Fiz., 1983, vol. 47, no. 9, pp. 1830–1837.

    ADS  Google Scholar 

  11. Morozova, I.M. and Ashkinadze, G.Sh., Migratsiya atomov redkikh gazov v mineralakh (Migration of Atoms of Rare Gases in Minerals), Moscow: Nauka, 1971.

  12. Manning, J.R., Diffusion Kinetics for Atoms in Crystals, New York: Van Nostrand, 1968. Translated under the title Kinetika diffuzii atomov v kristallakh, Moscow: Mir, 1971.

    Google Scholar 

  13. Bard, E., Raisbeck, G.M., Yiou, F., and Jousel, J., Solar Modulation of Cosmogenic Nuclide Production over the Last Millennium: Comparison between 14C and 10Be Records, Earth Planet. Sci. Lett., 1997, vol. 150, nos. 34, pp. 453–462.

    Article  ADS  Google Scholar 

  14. Kovalenko, V.A., Solnechnyi veter (Solar Wind), Moscow: Nauka, 1983.

  15. Schwenn, R., Solar Wind Sources and Their Variation over the Solar Cycle, Space Sci. Rev., 2006, vol. 124, no. 1, pp. 51–76.

  16. Galimov, E.M., The Project “Luna-Gelii-3”, Nauka v Rossii, 2006, no. 6, pp. 15–23.

    Google Scholar 

  17. Schmitt, H.H., Return to the Moon, New York: Copernicus Books, 2006, p. 335.

    Google Scholar 

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  1. Ioffe Physical Technical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St., Petersburg, 194021, Russia

    G. S. Anufriev

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  1. G. S. Anufriev
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Correspondence to G. S. Anufriev.

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Original Russian Text © G.S. Anufriev, 2010, published in Kosmicheskie Issledovaniya, 2010, Vol. 48, No. 1, pp. 102–108.

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Anufriev, G.S. Flux and isotopic composition of helium in the ancient solar wind. Cosmic Res 48, 101–107 (2010). https://doi.org/10.1134/S0010952510010089

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