| Autor: |
Turekian KK, Cochran JK, Kharkar DP, Cerrato RM, Vaisnys JR, Sanders HL, Grassle JF, Allen JA |
| Jazyk: |
angličtina |
| Zdroj: |
Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 1975 Jul; Vol. 72 (7), pp. 2829-32. |
| DOI: |
10.1073/pnas.72.7.2829 |
| Abstrakt: |
The age of a deep-sea clam, Tindaria callistiformis, from 3803 m depth has been determined by 228Ra (6.7 year half-life) chronology of separated size fractions of a captured population. A length of 8.4 mm is attained in about 100 years. Shells of this size fraction show about 100 regularly spaced bands, indicating that the growth feature may be an annual one. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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