USF St. Petersburg campus Faculty Publications
Sediment accumulation rates along the inner eastern Brazilian continental shelf.
Document Type
Article
Publication Date
1999
Abstract
Box cores were collected close to river mouths along the eastern Brazilian shelf at water depths of 10-30 m. One core was taken from more than 1000 m depth at the shelf slope. 210Pb and 226Ra activities were measured to establish sediment accumulation rates. Seven of the 10 cores exhibited an exponential decrease with depth of excess 210Pb activities. The sediments from the sheltered Sudeste Channel off Caravelas revealed the highest sediment accumulation rate of 0.81 cm yr-1. The sediments at the shelf slope seaward of the Rio Doce revealed the lowest accumulation rate of 0.13 cm yr-1. Sediment accumulation rates increased towards the Caravelas Bank. Current patterns and the morphology of the seabed favor sediment deposition in this area.
Language
en_US
Publisher
Birkhauser Verlag
Recommended Citation
Patchineelam, S.R. & Smoak, J.M. (1999). Sediment accumulation rates along the inner eastern Brazilian continental shelf. Geo-Marine Letters, 19, 196-201.
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Comments
Abstract only. Full-text article is available only through licensed access provided by the publisher. Published in Geo-Marine Letters, 19, 196-201. Members of the USF System may access the full-text of the article through the authenticated link provided.