The medieval climate anomaly in South America

S Lüning, M Gałka, FP Bamonte, FG Rodríguez… - Quaternary …, 2019 - Elsevier
Abstract The Medieval Climate Anomaly (MCA) is a climatic perturbation with a core period
of 1000-1200 AD that is well-recognized in the Northern Hemisphere (NH). Its existence in …

[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 …

The path towards endangered species: prehistoric fisheries in southeastern Brazil

MS Lopes, TCP Bertucci, L Rapagnã, RA Tubino… - PloS one, 2016 - journals.plos.org
Brazilian shellmounds are archaeological sites with a high concentration of marine faunal
remains. There are more than 2000 sites along the coast of Brazil that range in age from …

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 …

Productivity evolution in the south Brazilian bight during the last 40,000 years

LS Pereira, HW Arz, J Pätzold… - Paleoceanography …, 2018 - Wiley Online Library
Marine productivity largely controls the oceanic uptake of atmospheric carbon dioxide and
contributed to the global climate changes that led to the termination of the last glacial cycle …

Surface fertilisation and organic matter delivery enhanced carbonate dissolution in the western South Atlantic

JY Suárez-Ibarra, TM Freire, CF Frozza… - Frontiers in Ecology …, 2023 - frontiersin.org
The last glacial inception was characterised by rapid changes in temperature, atmospheric
pCO2, and changes in the water mass geometry of the major ocean basins. Although …

Variability of the upwelling system in the southeastern Brazilian margin for the last 110,000 years

R da Costa Portilho-Ramos, F Ferreira, L Calado… - Global and Planetary …, 2015 - Elsevier
Western boundary upwelling systems such as those found in the southeastern Brazilian
margin (SBM) are promoted by special atmospheric and oceanographic interactions with …

Recent geomorphological changes in the Paraiba do Sul delta, South America East Coast

AO Souza, L Lämmle, AP Filho… - Progress in Physical …, 2022 - journals.sagepub.com
The Paraiba do Sul River delta, a South America east coast system, presents deposits
recording complex sedimentary dynamics in the deltaic plain during the Little Ice Age (LIA) …

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 …