Intertidal mangrove mudflat 240+239Pu signatures, confirming a 210Pb geochronology on the southeastern coast of Brazil.

SelectedWorks Author Profiles:

Joseph M. Smoak

Document Type


Publication Date


Date Issued

January 2010

Date Available

January 2012


A sediment core was taken to determine if sediment accumulation rates could be conducted using 240+239Pu signatures in the coastal mangrove mudflats of southeastern Brazil. The results from this study show that 240+239Pu fallout activities are sufficient and well preserved in the coastal sediments of this region. Sediment accumulation rates determined from the 240+239Pu signatures were 4.4 mm/year and 4.1 from 210Pb (CIC) method. A sediment mixing coefficient rate was calculated using chlorophyll-α profile (9.5 cm2).


Abstract only. Full-text article is available only through licensed access provided by the publisher. Published in Journal of Radioanalytical and Nuclear Chemistry, 283(3), 593-596. doi: 10.1007/s10967-009-0418-7 Members of the USF System may access the full-text of the article through the authenticated link provided.




Elsevier Science Pub. Co.

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Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.