Perfluoroalkyl substances in the western tropical Atlantic Ocean

DA Miranda, J Leonel, JP Benskin… - … science & technology, 2021 - ACS Publications
The dispersion of perfluoroalkyl substances (PFAS) in surface and deep-water profiles
(down to 5845 m deep) was evaluated through the Western Tropical Atlantic Ocean (TAO) …

[HTML][HTML] Organic matter diagenesis and precipitation of Mg-rich carbonate and dolomite in modern hypersaline lagoons linked to climate changes

C Areias, CF Barbosa, APS Cruz, JA McKenzie… - … et Cosmochimica Acta, 2022 - Elsevier
Lipid-biomarkers have been used to reconstruct environmental changes in lacustrine
systems on a range of time scales. Lake sediments are excellent archives to apply these …

Holocene oscillations of Southwest Atlantic shelf circulation based on planktonic foraminifera from an upwelling system (off Cabo Frio, Southeastern Brazil)

DVO Lessa, IM Venancio, TP dos Santos… - The …, 2016 - journals.sagepub.com
The Brazil Current (BC) is a relevant feature in the Atlantic Meridional Overturning
Circulation (AMOC). Its behavior during slowdown or intense AMOC remains poorly known …

Sedimentary organic matter accumulation provinces in the Santos Basin, SW Atlantic: insights from multiple bulk proxies

RS Carreira, L Lazzari, M Ceccopieri, L Rozo… - Ocean and Coastal …, 2023 - SciELO Brasil
The organic matter (OM) of surface sediments (0–2 cm) from the Santos Basin was
characterized by employing elemental (C, N, P), isotopic (δ 13C and δ 15N), biochemical …

Oceanographic and sedimentological influences on carbonate geochemistry and mineralogy in hypersaline coastal lagoons, Rio de Janeiro state, Brazil

GS Nascimento, TI Eglinton… - Limnology and …, 2019 - Wiley Online Library
The Região dos Lagos situated along the coast east of Rio de Janeiro, Brazil, is dominated
by a semiarid microclimate attributed to the occurrence of oceanographic upwelling at …

Influence of continental shelf processes in the water mass balance and productivity from stable isotope data on the Southeastern Brazilian coast

IM Venancio, AL Belem, THR dos Santos… - Journal of Marine …, 2014 - Elsevier
Stable isotopic composition (δ 18 O and δD of water, δ 13 C DIC) of the water column in the
open ocean is related to the origin of water masses. Due to the recent increase of …

Offshore expansion of the Brazilian coastal upwelling zones during Marine Isotope Stage 5

DVO Lessa, TP Santos, IM Venancio… - Global and Planetary …, 2017 - Elsevier
Paleoceanographic reconstructions in upwelling regions can provide relevant information
about changes in primary productivity, ocean–atmosphere interactions and the carbon …

[HTML][HTML] Coupling between physical processes and biogeochemistry of suspended particles over the inner shelf mud in the East China Sea

JT Liu, J Lee, RJ Yang, X Du, A Li, YS Lin, CC Su… - Marine Geology, 2021 - Elsevier
This study examines how geochemical signals regarding the source and transformation in
suspended particles are transported in the marine portion of the sediment dispersal system …

Planktonic foraminifera in the sediment of a western boundary upwelling system off Cabo Frio, Brazil

DV de Oliveira Lessa, RP Ramos, CF Barbosa… - Marine …, 2014 - Elsevier
The distribution of planktonic foraminifera in box-core tops under the influence of a western
boundary upwelling system along the southeastern Brazilian continental margin was …

Calcification depths of planktonic foraminifera from the southwestern Atlantic derived from oxygen isotope analyses of sediment trap material

IM Venancio, AL Belem, TP Santos, DO Lessa… - Marine …, 2017 - Elsevier
We present a multi-year record of shell fluxes and δ 18 O of six planktonic foraminifera
species (Globigerinoides ruber pink, Globigerinoides ruber white, Trilobatus sacculifer …