1. Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, São Paulo, Brazil.
2. National Center of Research in Energy and Materials, Brazilian Synchrotron Light Laboratory, Campinas, Brazil.
3. Chemistry Institute, University of São Paulo, São Paulo, Brazil.
4. Earth Sciences Division, NASA Ames Research Center, Moffett Field, California, USA.
5. Oceanographic Institute, University of São Paulo, São Paulo, Brazil.