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Contents: Vol. 20 (No. 1), 1986

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• Lead isotope ratios in Tokyo Bay sediments and their implications in the lead consumption of Japanese industries
  Y. Hirao, H. Mabuchi, E. Fukuda, H. Tanaka, T. Imamura, H. Todoroki, K. Kimura and E. Matsumoto
  Geochemical Journal, Vol. 20 (No. 1), p. 1, 1986
  [Full text]

• Enrichment of incompatible elements at grain-boundaries of olivine in an olivine-nephelinite
  K. Suzuki
  Geochemical Journal, Vol. 20 (No. 1), p. 17, 1986
  [Full text]

• Natural and man-made radionuclide distributions in Northwest Pacific deep-sea sediments: rates of sedimentation, bioturbation and ²²⁶Ra migration
  H. S. Yang, Y. Nozaki, H. Sakai, Y. Nagaya and K. Nakamura
  Geochemical Journal, Vol. 20 (No. 1), p. 29, 1986
  [Full text]

• Geochemical study of the geothermal field of Antsirabé (Madagascar)
  G. Sarazin, G. Michard, Rakotonindrainy and L. Pastor
  Geochemical Journal, Vol. 20 (No. 1), p. 41, 1986
  [Full text]

• Volatile organic acids generated from kerogen during laboratory heating
  K. Kawamura, E. Tannenbaum, B. J. Huizinga and I. R. Kaplan
  Geochemical Journal, Vol. 20 (No. 1), p. 51, 1986
  [Full text]

• Papers read at THE 1985 ANNUAL MEETING OF THE GEOCHEMICAL SOCIETY OF JAPAN
  Geochemical Journal, Vol. 20 (No. 1), p. i, 1986
  [Full text]