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Title: Oceanic residence times of dissolved beryllium and aluminum deduced from cosmogenic tracers /sup 10/Be and /sup 26/Al

Journal Article · · Science; (United States)
OSTI ID:5967547

The residence times of the soluble fractions of beryllium and aluminum in seawater are estimated to be 1500 years or more. These residence times are estimated from a comparison of the annual deposition rates of cosmogenic beryllium-10 and aluminum-26 with the concentrations of beryllium-10 and aluminum-26 in seawater estimated from the specific activities of these radionuclides in an authigenic mineral assembly such as a manganese nodule. These residence times are greater by an order of magnitude than the mean residence times of beryllium and aluminum estimated from the geochemical balance.

Research Organization:
Commissariat a l'Energie Atomique, Gif-sur-Yvette, France
OSTI ID:
5967547
Journal Information:
Science; (United States), Vol. 201:4360
Country of Publication:
United States
Language:
English