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Photostimulated luminescence applicable to pre-screening of potassium-rich phases in chondritic breccias

  • Tatsunori Yokoyama
  • Keiji Misawa
  • Osamu Okano
  • Haruka Minowa
  • Takaaki Fukuoka
Article

Abstract

The identification of alkali-rich components in extraterrestrial materials along with their separation from other constituents is indispensable for subsequent cosmochemical and isotopic studies. This paper presents a simple pre-screening method for such materials by autoradiography using imaging plates (IPs), which is applicable to identification of mm-sized samples containing ca. 30 µg of potassium in the Yamato-74442 chondrite. The detection limit of IPs was ~1 mBq of 40K under 49 days exposure. The method provides an opportunity to screen meteorite materials non-destructively and to inexpensively check potassium-rich areas and are suitable for the 40K–40Ca and 40K–40Ar (39Ar–40Ar) age determinations.

Keywords

Imaging plate 40K decay K-rich rock fragments Chondritic meteorites 

Notes

Acknowledgments

We are grateful to the National Institute of Polar Research for providing the Y-74442 meteorite specimens. TY wants to thank H. Kusuno for her help during the course of IP exposure experiments at the Institute for Cosmic Ray Research. We thank M.J. Tappa for correcting and refining the English usage. Constructive comments from two anonymous reviewers improved and clarified the manuscript. This work was partly supported by funds from the NIPR Research Program (KP-6) and by the cooperative program (I02) from the Institute for Cosmic Ray Research and by the Sasakawa Scientific Research Grant from The Japan Science Society.

Supplementary material

10967_2016_4846_MOESM1_ESM.eps (3.6 mb)
Autoradiographs of control samples derived from the dry down process of the KCl solution: a1–c7 (K = 12–780 µg) and KCl crystals: C01–C12 (K = 524–1520 µg) after 210 hs exposure at ambient temperature with/without shielding: a the IP was put in a cassette without shielding, b the IP was put in a cassette sandwiched between 50 mm-thick lead bricks. Once specifying reading areas of samples and background (green circles for control samples and red circles for backgrounds [BG]), IP-volume was derived from the volume of the quantity of material in the image feature after the background intensity has been removed. The IP-response was calculated by dividing IP-volume by area (number of pixels quantified in the image). Background radiations if 50 mm-thick lead shields were used, generally decreased from 104–3.75 IP responses/day. The results demonstrate that we could detect the radiation resulting from 40K decay in the reagent samples containing >50 µg of potassium (i.e. >2 mBq) with this type of shielding and exposure time. In order to detect samples with ≤30 µg of potassium, more shielding and longer exposure could be required. Supplementary material 1 (EPS 3682 kb)
10967_2016_4846_MOESM2_ESM.docx (18 kb)
Supplementary material 2 (DOCX 17 kb)

References

  1. 1.
    Palme H, Larimer JW, Lipschutz ME (1988) Moderately volatile elements. In: Kerridge JF, Matthews MS (eds) Meteorites and the early solar system. University of Arizona, Tucson, pp 436–460Google Scholar
  2. 2.
    Wasson JT, Chou C-L (1974) Fractionation of moderately volatile elements in ordinary chondrites. Meteoritics 9:69–84CrossRefGoogle Scholar
  3. 3.
    Kempe W, Müller O (1969) The stony meteorite Krähenberg. Its chemical composition and the Rb–Sr age of the light and dark portions. In: Millman PM (ed) Meteorite research. Reidel, Dordrecht, p 418CrossRefGoogle Scholar
  4. 4.
    Fodor RV, Keil K (1978) Catalog of lithic fragments in LL-chondrites, Inst. Meteoritics Spec. Publ. No. 19, University of New Mexico, Albuquerque, pp 38Google Scholar
  5. 5.
    Wlotzka F, Palme H, Spettel B, Wänke H (1983) Alkali differentiation in LL-chondrites. Geochim Cosmochim Acta 47:743–757CrossRefGoogle Scholar
  6. 6.
    Wlotzka F, Spettel B, Pedroni A (1992) K-rich lithic clasts in the Acfer 111 H-chondrite. Meteoritics 27:308Google Scholar
  7. 7.
    Zolensky ME, Bodnar RJ, Gibson EK Jr, Nyquist LE, Reese Y, Shih C-Y, Wiesmann H (1999) Asteroidal water within fluid inclusion-bearing halite in an H5 chondrite, Monahans (1998). Science 288:1377–1379CrossRefGoogle Scholar
  8. 8.
    Zolensky ME, Bodnar RJ, Rubin AE (1999) Asteroidal water within fluid-inclusion-bearing halite in ordinary chondrites. Meteorit Planet Sci 34:A124Google Scholar
  9. 9.
    Rubin AE, Zolensky ME, Bodnar RJ (2003) The halite-bearing Zag and Monahans (1998) meteorite breccias: shock metamorphism, thermal metamorphism and aqueous alteration on the H-chondrite parent body. Meteorit Planet Sci 27:125–141Google Scholar
  10. 10.
    Noguchi T, Kimura M, Hashimoto T, Konno M, Nakamura T, Zolensky ME, Tsuchiyama A, Matsumoto T, Matsuno J, Okazaki R, Uesugi M, Karouji Y, Yada T, Ishibashi Y, Shirai K, Abe M, Okada T (2014) Sylvite and halite on particles recovered from 25143 Itokawa: a preliminary report. Meteorit Planet Sci 49:1305–1314CrossRefGoogle Scholar
  11. 11.
    Bogard DD, Garrison DH, Masarik J (2000) The Monahans chondrite and halite: 39Ar–40Ar age, solar gases, cosmic-ray exposure ages, and parent body regolith neutron flux and thickness. Meteorit Planet Sci 36:107–122CrossRefGoogle Scholar
  12. 12.
    Shih C-Y, Nyquist LE, Dasch EJ, Bogard DD, Bansal BM, Wiesmann H (1993) Ages of pristine noritic clasts from lunar breccias 15445 and 15455. Geochim Cosmochim Acta 57:915–931CrossRefGoogle Scholar
  13. 13.
    Shih C-Y, Nyquist LE, Bogard DD, Wiesmann H (1994) K–Ca and Rb–Sr dating of two lunar granites: relative chronometer resetting. Geochim Cosmochim Acta 58:3101–3116CrossRefGoogle Scholar
  14. 14.
    Takahashi K, Kohda K, Miyahara J (1984) Mechanism of photostimulated luminescence in BaFX:Eu2+ (X = Cl, Br) phosphors. J Lumin 31:266–268CrossRefGoogle Scholar
  15. 15.
    Amemiya Y, Miyahara J (1988) Imaging plate illuminates many fields. Nature 336:89–90CrossRefGoogle Scholar
  16. 16.
    Iwabuchi Y, Umemoto C, Takahashi K, Shionoya S (1991) Photostimulated luminescence process in BaFBr:Eu2+ containing F(Br) and F(F) centers. J Lumin 48:481–484CrossRefGoogle Scholar
  17. 17.
    Momoshima N, Nita J, Maeda Y, Sugihara S, Shinno I, Matsuoka N, Huang C-W (1997) Chemical composition and radioactivity in hokutolite (plumbian barite) collected at Peito hot spring, Taiwan. J Environ Radioact 37:85–99CrossRefGoogle Scholar
  18. 18.
    Hareyama M, Tsuchiya N, Takebe M, Chida T (2000) Two-dimensional measurement of natural radioactivity of granitic rocks by photostimulated luminescence technique. Geochem J 34:1–9CrossRefGoogle Scholar
  19. 19.
    Cole JM, Nienstedt J, Spataro G, Rasbury ET, Lanzirotti A, Celestian AJ, Nilsson M, Hanson GN (2003) Phosphor imaging as a tool for in situ mapping of ppm levels of uranium and thorium in rocks and minerals. Chem Geol 193:127–136CrossRefGoogle Scholar
  20. 20.
    Pickering R, Kramers JD, Partridge T, Kodolanyi J, Pettke T (2010) U–Pb dating of calcite-aragonite layers in speleothems from hominin sites in South Africa by MC-ICP-MS. Quaternary Geochnonol 5:544–558CrossRefGoogle Scholar
  21. 21.
    Devès G, Perrouxb A-S, Bacquarta T, Plaisira C, Rosec J, Jailletd S, Ghalebe B, Ortega R, Maire R (2012) Chemical element imaging for speleothem geochemistry: application to a uranium-bearing corallite with aragonite diagenesis to opal (Eastern Siberia, Russia). Chem Geol 294–295:190–202CrossRefGoogle Scholar
  22. 22.
    Zeissler CJ, Lindstrom RM, McKinley JP (2001) Radioactive particle analysis by digital autoradiography. J Radioanal Nucl Chem 248:407–412CrossRefGoogle Scholar
  23. 23.
    Rufer D, Preusser F (2009) Potential of autoradiography to detect spatially resolved radiation patterns in the context of trapped charge dating. Geochronometria 34:1–13CrossRefGoogle Scholar
  24. 24.
    Okano O, Yokoyama T, Minowa H, Mori K, Saito K, Kusuno H, Fukuoka T, Misawa K (2011) Identification of K-rich fragments in chondritic breccias using Imaging Plate (IP): an application to the planetary materials. Antarct Meteor 34:66–67Google Scholar
  25. 25.
    Yokoyama T, Misawa K, Okano O, Shih C-Y, Nyquist LE, Simon JI, Tappa MJ, Yoneda S (2013) Rb-Sr isotopic systematics of alkali-rich fragments in the Yamato-74442 LL-chondritic breccias. Earth Planet Sci Lett 366:38–48CrossRefGoogle Scholar
  26. 26.
    Yokoyama T, Misawa K, Okano O, Shih C.-Y, Nyquist LE, Simon JI, Tappa MJ, Yoneda S (2013) K–Ca dating of alkali-rich fragments in the Y-74442 and Bhola LL-chondritic breccias. Lunar Planet Sci, 44, abstract #1972Google Scholar
  27. 27.
    Suzuki T, Mori C, Yanagida K, Uritani A, Miyahara H, Yoshida M, Takahashi F (1997) Characteristics and correction of the fading of imaging plate. J Nucl Sci Tech 34:461–465CrossRefGoogle Scholar
  28. 28.
    Mori C, Matsumura A, Suzuki T, Miyahara H, Aoyama T, Nishizawa K (1994) Detection of extremely low level radioactivity with imaging plate. Nucl Instr Meth A339:278–281CrossRefGoogle Scholar
  29. 29.
    Firestone RB (ed) (1996) Table of isotopes, 8th edn. John Wiley & Sons Inc, New YorkGoogle Scholar
  30. 30.
    Wilkinson SL, Robinson MS (2000) Bulk density of ordinary chondrite meteorites and implications for asteroidal internal structure. Meteorit Planet Sci 35:1203–1213CrossRefGoogle Scholar
  31. 31.
    Gonzalez AL, Li H, Mitch M, Tolk N, Duggan DM (2002) Energy response of an imaging plate exposed to standard beta sources. Appl Radiat Isot 57:875–882CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2016

Authors and Affiliations

  • Tatsunori Yokoyama
    • 1
    • 2
    • 3
  • Keiji Misawa
    • 1
    • 4
  • Osamu Okano
    • 5
  • Haruka Minowa
    • 6
  • Takaaki Fukuoka
    • 7
  1. 1.Department of Polar ScienceSOKENDAI (The Graduate University for Advanced Studies)TachikawaJapan
  2. 2.National Museum of Nature and ScienceTsukubaJapan
  3. 3.Tono Geoscience Center, Sector of Decommissioning and Radioactive Waste ManagementJapan Atomic Energy AgencyTokiJapan
  4. 4.National Institute of Polar ResearchTachikawaJapan
  5. 5.Department of Earth SciencesOkayama UniversityOkayamaJapan
  6. 6.Radioisotope Research CenterThe Jikei University School of MedicineTokyoJapan
  7. 7.Geo-Environmental Science Research DepartmentRissho UniversityKumagayaJapan

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