ORCID Profile
0000-0001-9119-8195
Current Organisations
Universidade de São Paulo
,
Centro de Energia Nucelar na Agricultura/USP
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Related Links
Publications
A 2400-year record of trace metal loading in lake sediments of Lagoa Vermelha, southeastern Brazil
Publisher: Elsevier BV
Date: 02-2012
Os primeiros povoadores do litoral norte do Espírito Santo: uma nova abordagem na arqueologia de sambaquis capixabas
Publisher: FapUNIFESP (SciELO)
Date: 12-2018
Vegetation and environmental changes in tropical South America from the last glacial to the Holocene documented by multiple cave sediment proxies
Publisher: Elsevier BV
Date: 10-2019
Climate changes in Northeastern Brazil from deglacial to Meghalayan periods and related environmental impacts
Publisher: Elsevier BV
Date: 12-2020
The use of carbon isotopes (13C,14C) in different soil types and vegetation coverage in a montane atlantic forest region, Southeast Brazil
Publisher: Elsevier BV
Date: 02-2021
A geochemical and lead isotopic record from a small pond in a remote equatorial island, Fernando de Noronha, Brazil
Publisher: SAGE Publications
Date: 05-2009
Abstract: A 72 cm long core was collected from Lagoa da Viração (LV), a small pond in the Fernando de Noronha island, northern Brazil. Sediments from the lower section of the core (20—72 cm depth) contain essentially mineral matter, while in the upper section (0—20 cm depth) mineral matter is mixed with organic matter. Lithogenic conservative elements — Si, Al, Fe, Ti, Co, Cr, Cu, Ba, Ga, Hf, Nb, Ni, Y, V, Zn, Zr and REE — exhibit remarkably constant values throughout the core, with concentrations similar to those of the bedrock. The vertical distribution of soluble elements — Ca, Mg, Na, K, P, Mn and Sr — is also homogeneous, but these elements are systematically depleted in relation to the bedrock. LOI, TOC, Br, Se, Hg and Pb, although showing nearly constant values in the lower section of the core, are significantly enriched in the upper section. The concentration profiles of Br and Se suggest that they may be accounted for by natural processes, related to the slight affinity of these elements for organic matter. On the other hand, the elevated levels of Hg and Pb in recent sediments may be explained by their long-range atmospheric transport and deposition. Furthermore, the isotopic composition of Pb clearly indicates that anthropogenic sources contributed to the Pb burden in the uppermost pond sediments.
Related Organisations
Related Funding Activities
No related grants have been discovered for Luiz Carlos Ruiz Pessenda.