---

Contents: Vol. 24 (No. 1), 1990

---

• The distribution of ²²⁸Ra and ²²⁶Ra in the surface waters of the northern North Pacific
  Y. Nozaki, V. Kasemsupaya and H. Tsubota
  Geochemical Journal, Vol. 24 (No. 1), p. 1, 1990
  [Full text]

• Radiometric age and Sr isotope characteristics of volcanic rocks from the Japan Sea floor
  I. Kaneoka
  Geochemical Journal, Vol. 24 (No. 1), p. 7, 1990
  [Full text]

• The role of organic acid in the abiogenic reduction of sulfate and the sulfur isotope effect
  Y. Kiyosu and H. R. Krouse
  Geochemical Journal, Vol. 24 (No. 1), p. 21, 1990
  [Full text]

• A further three-dimensional U-Pb method for solving the two-stage episodic model
  Y.-F. Zheng
  Geochemical Journal, Vol. 24 (No. 1), p. 29, 1990
  [Full text]

• Features of the heavy rare-earth elements in seawater
  M. Tanaka, H. Shimizu and A. Masuda
  Geochemical Journal, Vol. 24 (No. 1), p. 39, 1990
  [Full text]

• Papers read at THE 1989 ANNUAL MEETING OF THE GEOCHEMICAL SOCIETY OF JAPAN
  Geochemical Journal, Vol. 24 (No. 1), p. i, 1990
  [Full text]