Abstract
The tritium and contents of the Norton County stone meteorite were measured. At the time of fall (1948) the tritium activity of two different specimens were (0.28±0.02) and (0.25±0.02) disintegrations . The measured contents per gram were (2.27±0.11) and (2.35±0.11)× cc STP respectively. Experiments were made which indicate that there has been no appreciable loss of . The amount of accumulated and the tritium production rate combined give apparent - ages for irradiation of 420 and 480 million years respectively. If an assumption is made as to the direct production rate of by spallation, these ages reduce to 240 and 280 million years. The - age of this meteorite is million years. The possible significance of this difference in age is discussed.
- Received 12 February 1957
DOI:https://doi.org/10.1103/PhysRev.107.540
©1957 American Physical Society