Paleo-environmental change in Amazonian and African rainforest during the LGM

D Anhuf, MP Ledru, H Behling, FW Da Cruz Jr… - Palaeogeography …, 2006 - Elsevier
The paper provides new and comparative insight into the ecological history of the two
largest continental tropical forest areas during the Last Glacial Maximum (LGM). The tropical …

The Hill of Six Lakes revisited: new data and re-evaluation of a key Pleistocene Amazon site

C D'Apolito, ML Absy, EM Latrubesse - Quaternary Science Reviews, 2013 - Elsevier
The new analyses of a sedimentary record of Lake Pata in the Hill of Six Lakes, in NW
Amazon and its correlation with other Quaternary proxy records in the region provide new …

Mercury enrichment and Hg isotopes in Cretaceous–Paleogene boundary successions: Links to volcanism and palaeoenvironmental impacts

AN Sial, J Chen, LD Lacerda, R Frei, VC Tewari… - Cretaceous …, 2016 - Elsevier
We investigate the use of Hg as a proxy for volcanism by studying four distal and two
proximal sections in relation to the Deccan volcanic center, straddling the Cretaceous …

Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition

AN Sial, LD Lacerda, VP Ferreira, R Frei… - Palaeogeography …, 2013 - Elsevier
The usually low geological background concentrations of Hg makes this trace element
suitable for identifying accumulation pulses in sediments that can be tentatively related to …

The effects of land use change on mercury distribution in soils of Alta Floresta, Southern Amazon

LD Lacerda, M de Souza, MG Ribeiro - Environmental pollution, 2004 - Elsevier
This study presents the spatial distribution, degree of contamination and storage capacity of
Hg in surface forest and pasture soils from Alta Floresta, Southern Amazon, a significant …

C, N, Hg isotopes and elemental chemostratigraphy across the Ordovician–Silurian transition in the Argentine Precordillera: Implications for the link between …

AN Sial, J Chen, SH Peralta, C Gaucher, C Korte… - Gondwana …, 2024 - Elsevier
Global geological processes that occurred during the Ordovician–Silurian transition (OST)
were investigated exploring sections from the Argentine Precordillera (Cerro La Chilca …

Dust arriving in the Amazon basin over the past 7,500 years came from diverse sources

J Nogueira, H Evangelista, CM Valeriano… - … Earth & Environment, 2021 - nature.com
A large amount of dust from the Sahara reaches the Amazon Basin, as observed with
satellite imagery. This dust is thought to carry micronutrients that could help fertilize the …

High-resolution Hg chemostratigraphy: A contribution to the distinction of chemical fingerprints of the Deccan volcanism and Cretaceous–Paleogene Boundary impact …

AN Sial, J Chen, LD Lacerda, S Peralta… - Palaeogeography …, 2014 - Elsevier
There is a renewed interest in volcanism as the major trigger for dramatic climatic changes
at the Cretaceous–Paleogene transition (KTB), which were accompanied by a decrease in …

[HTML][HTML] Biogeochemical indicators of environmental changes from 50 Ka to 10 Ka in a humid region of the Brazilian Amazon

RC Cordeiro, B Turcq, A Sifeddine, LD Lacerda… - Palaeogeography …, 2011 - Elsevier
We present a geochemical record of a 113.6-cm sediment core (LPT V) from Lagoa da Pata,
which is located in the forested upper Rio Negro basin. The record reveals significant …

C-, Sr-isotope and Hg chemostratigraphy of Neoproterozoic cap carbonates of the Sergipano Belt, Northeastern Brazil

AN Sial, C Gaucher, MA da Silva Filho, VP Ferreira… - Precambrian …, 2010 - Elsevier
Two cap carbonates overlying glaciogenic diamictites crop out extensively in the eastern
Vaza Barris Domain of the Sergipano Belt, northeastern Brazil. They are represented by …