Slow growth rate of a deep-sea clam determined by 228Ra chronology. | Zendy

Karl K. Turekian | Zendy; J. Kirk Cochran | Zendy; D.P. Kharkar | Zendy; Robert M. Cerrato | Zendy; J. Rimas Vaišnys | Zendy; Howard L. Sanders | Zendy; J.F. Grassle | Zendy; J. A. Allen | Zendy

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Slow growth rate of a deep-sea clam determined by 228Ra chronology.

Author(s) -

Karl K. Turekian,

J. Kirk Cochran,

D.P. Kharkar,

Robert M. Cerrato,

J. Rimas Vaišnys,

Howard L. Sanders,

J.F. Grassle,

J. A. Allen

Publication year - 1975

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.72.7.2829

Subject(s) - chronology , population , deep sea , fraction (chemistry) , geology , oceanography , biology , mineralogy , paleontology , chemistry , chromatography , demography , sociology

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.

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