Title
14C-AMS as a tool for the investigation of mercury deposition at a remote Amazon location
Date Issued
01 August 2004
Access level
metadata only access
Resource Type
conference paper
Author(s)
Barbosa J.A.
Cordeiro R.C.
Silva E.V.
Gomes P.R.S.
Santos G.M.
Sifedinne A.
Albuquerque A.L.S.
Lacerda L.D.
Hausladen P.A.
Tims S.G.
Levchenko V.A.
Fifield L.K.
Research Institute Development
Abstract
We present results of the atmospheric mercury deposition rate in the Amazon region during the last 43000 years. Lake sediment samples were collected from the Lagoa da Pata, a small and remote lake in northern Brazilian Amazon. The samples were divided in sub-samples, for C, Hg, N and 14C-AMS analyses. Three main paleoclimatic events could be identified. The mercury accumulation rates were found to be larger during the periods of the Holocene and Pleistocene associated with high temperatures and frequency of forest fires. © 2004 Elsevier B.V. All rights reserved.
Start page
528
End page
534
Volume
223-224
Issue
SPEC. ISS.
Language
English
OCDE Knowledge area
Física nuclear
Meteorología y ciencias atmosféricas
Subjects
Scopus EID
2-s2.0-3943058845
ISSN of the container
0168583X
Conference
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Sponsor(s)
The Brazilian authors would like to thank the Conselho Nacional de Desenvolvimento Cientı́fico e Tecnológico (CNPq) for their financial support. They also thank IBAMA and Força Aérea Brasileira (CAN) for logistical support and transport during the field work at Morro dos Seis Lagos.
Sources of information:
Directorio de Producción Científica
Scopus