A geochemical and lead isotopic record from a small pond in a remote equatorial island, Fernando de Noronha, Brazil

A 72 cm long core was collected from Lagoa da Viracao (LV), a small poind 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.

Graduate School and University Center Archives Finding Aid - Record Group VIII: Doctoral Students' Council

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group VIII is the files from the Doctoral Students' Council (DSC).

Graduate School and University Center Archives Finding Aid - Record Group VII: CUNY

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group VII is materials about the City University of New York, transferred from the Mina Rees Library and the Provost's Office. Also included in this group are the records of the Research Foundation.

Graduate School and University Center Archives Finding Aid - Record Group VI: Vice-President for Finance and Administration

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group VI is the files of the Vice-Presidents for Finance and Administration.

Graduate School and University Center Archives Finding Aid - Record Group V-D: Presidents' Files: Kelly

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group V-D is the papers of William P. Kelly from when he was president of the GSUC (2005-2013).

Graduate School and University Center Archives Finding Aid - Record Group V-C: Presidents' Files: Horowitz

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group V-C is the papers of Frances Degen Horowitz from when she was president of the GSUC (1991-2005).

Graduate School and University Center Archives Finding Aid - Record Group V-B: Presidents' Files: Proshansky

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group V-B is the papers of Harold M. Proshansky from when he was president of the GSUC (1972-1990).

Graduate School and University Center Archives Finding Aid - Record Group V-A: Presidents' Files: Rees

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group V-A is the papers of Mina S. Rees from when she was president of the GSUC (1969-1972).

Graduate School and University Center Archives Finding Aid - Record Group V: Presidents' Files

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group V explains the record groups in the "Presidents' Files" series.

Graduate School and University Center Archives Finding Aid - Record Group IV: Committee Records

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group t IV is records from various GSUC committees.

Graduate School and University Center Archives Finding Aid - Record Group III: Periodicals

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives. Record Group III is periodicals by and/or about the GSUC.

Graduate School and University Center Archives Finding Aid - Record Group II: Centers and Institutes

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives, City University of New York. Record Group II is material collected from research centers and institutes at the GSUC.

Graduate School and University Center Archives Finding Aid - Record Group I: Subjects

This is part of the finding aid to the Graduate School and University Center (GSUC) Archives, City University of New York. Record Group I lists the subjects covered in the collection.

January 2012: Congressional Record app for iPad!

http://digitalcommons.winthrop.edu/dacusdocsnews/1056/thumbnail.jpg

Acompanhe como foi a repercussão do debate dos presidenciáveis promovido pela Rede Record

Retirada do Jornal O Globo.