Uranium and Lead Isotopic Stability in a Metamict Zircon under Experimental Hydrothermal Conditions

See allHide authors and affiliations

Science  23 Dec 1966:
Vol. 154, Issue 3756, pp. 1538-1540
DOI: 10.1126/science.154.3756.1538


Abstract. Disturbance of the uranium-lead isotopic system in a metamict Ceylon zircon has been produced in a 2 molal NaCI solution at 500°C and 1000 bars fluid pressure. Loss of radiogenic lead to the extent of 61 percent in 13 days was the most significant effect. The experimental results support the episodic rather than continuous lead-loss interpretation of natural zircon systems utilized in geochronology.