title: Oceanic Residence Times of Dissolved Beryllium and Aluminum Deduced from Cosmogenic Tracers 10Be and 26Al.
abstract: 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.
authors.forename: Y
authors.initials: Y
authors.lastname: Yokoyama
authors.forename: F
authors.initials: F
authors.lastname: Guichard
authors.forename: J L
authors.initials: JL
authors.lastname: Reyss
authors.forename: N H
authors.initials: NH
authors.lastname: VAN