Search Results - "Albuquerque, Ana Luiza Spadano"
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Contrasted distributions of triterpene derivatives in the sediments of Lake Caçó reflect paleoenvironmental changes during the last 20,000 yrs in NE Brazil
Published in Organic geochemistry (01-02-2007)“…Lipid fractions extracted from sediment layers deposited in a small Brazilian lake during the last 20,000 yrs were investigated by gas chromatography–mass…”
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2
Local indices for the South American monsoon system and its impacts on Southeast Brazilian precipitation patterns
Published in Natural hazards (Dordrecht) (01-09-2016)“…The South American monsoon system (SAMS) plays a fundamental role in the precipitation regime of the most populous and economically important regions in…”
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3
Paleohydrological changes during the last deglaciation in Northern Brazil
Published in Quaternary science reviews (01-04-2007)“…We here report a reconstruction of hydrological balance variations in Northern Brazil for the last 20 ka deduced from the δD values of aquatic and land plant…”
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4
Regeneration of the Atlantic forest in an urban protected area of São Paulo, Brazil: a historical and palynological approach
Published in Biodiversity and conservation (01-03-2014)“…We performed pollen analyses based on a geochronological scale and historical records in core samples from Lago das Garças Lake in the Fontes do Ipiranga State…”
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5
Diatom assemblage in a tropical lake of northeastern Brazil
Published in Brazilian archives of biology and technology (01-02-2010)“…The composition and spatial variation of diatom assemblage in surface sediments of Caçó Lake (shallow, mesotrophic and weakly acid lake - Maranhão State,…”
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6
Pentacyclic triterpene methyl ethers in recent lacustrine sediments (Lagoa do Caçó, Brazil)
Published in Organic geochemistry (01-03-2005)“…The lipid extracts of sediments collected from the Quaternary filling of a tropical lacustrine series (Lagoa do Caçó, Brazil) were investigated using gas…”
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Major environmental changes recorded by lacustrine sedimentary organic matter since the last glacial maximum near the equator (Lagoa do Caçó, NE Brazil)
Published in Palaeogeography, palaeoclimatology, palaeoecology (30-03-2004)“…Sediment samples collected along a 6-m core, drilled in the deepest part of the Lagoa do Caçó (NE Brazil), have been investigated in order to determine…”
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8
Metals in seston from Cabo Frio Bay, a region under the influence of upwelling in SE–Brazil
Published in Biometals (01-02-2023)“…This study, performed during 2003–2005 and 2008–2009, investigated metals (Al, Fe, Ba, Zn, Mn, Cr, Cu, Ni, Cd) content in seston at Cabo Frio Bay, SE–Brazil…”
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9
Mercury distribution in water masses of the South Atlantic Ocean (24°S to 20°S), Brazilian Exclusive Economic Zone
Published in Marine pollution bulletin (01-03-2022)“…Mercury (Hg) is a toxic globally spread pollutant that has been found at increasing concentrations in the South Atlantic Ocean. The present work provides the…”
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10
Land-sea correlation in southeastern Brazil during the last 7.4 cal ka BP: Vegetational, climatic and oceanographic inferences
Published in Quaternary international (20-11-2021)“…The vegetation history and climate in southeastern Brazil, as well as the oceanic dynamics of the tropical Atlantic Ocean offshore, were reconstructed for the…”
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11
Controlling Parameters of Benthic Deep-Sea Foraminiferal Biogeography at the Brazilian Continental Margin (11-22°S)
Published in Frontiers in Marine Science (20-07-2022)“…This study presents new quantitative data on benthic foraminifera from three bathymetric transects of the Brazil (11-14°S, 420-1900 m) and Campos (22°S,…”
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12
A late Holocene paleoclimate reconstruction from Boqueirão Lake sediments, northeastern Brazil
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-12-2014)“…Lake level fluctuations and environmental changes during the late Holocene were inferred from changes in sedimentology, bulk and isotope organic geochemistry,…”
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13
Holocene paleolimnological reconstruction of a high altitude Colombian tropical lake
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-12-2014)“…Aquatic environments in the high-Andean may be quite vulnerable to climatic conditions and hydrological processes (precipitation/evaporation) that have the…”
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14
Onocerane attests to dry climatic events during the Quaternary in the tropics
Published in Organic geochemistry (01-03-2004)“…An unusual molecular fossil (onocerane I) has been detected in Quaternary lacustrine sediments (Lagoa do Caçó, NE Brazil) for the first time. This component…”
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15
Subsurface warming in the tropical Atlantic for the last 3 deglaciations: Insights from organic molecular proxies
Published in Quaternary science reviews (01-12-2023)“…During glacial terminations, the role of cross-equatorial currents in the northward spreading of warm and salty waters is essential to the reach of the…”
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16
Long-term variability of the western tropical Atlantic sea surface temperature driven by greenhouse gases and AMOC
Published in Quaternary science reviews (15-12-2023)“…The long-term orbital-scale sea surface temperature (SST) variability in the tropics is thought to be mainly driven by greenhouse gases (GHG) forcing. However,…”
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Holocene oscillations of Southwest Atlantic shelf circulation based on planktonic foraminifera from an upwelling system (off Cabo Frio, Southeastern Brazil)
Published in Holocene (Sevenoaks) (01-08-2016)“…The Brazil Current (BC) is a relevant feature in the Atlantic Meridional Overturning Circulation (AMOC). Its behavior during slowdown or intense AMOC remains…”
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Mineral and elemental indicators of post-glacial changes in sediment delivery and deposition under a western boundary upwelling system (Cabo Frio, southeastern Brazil)
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-03-2016)“…Minerals and elements are important proxies that can provide information about variations in the delivery and deposition of coastal ocean sediments associated…”
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Planktonic foraminifera in the sediment of a western boundary upwelling system off Cabo Frio, Brazil
Published in Marine micropaleontology (01-01-2014)“…The distribution of planktonic foraminifera in box-core tops under the influence of a western boundary upwelling system along the southeastern Brazilian…”
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20
Salinity and stable oxygen isotope relationship in the Southwestern Atlantic: constraints to paleoclimate reconstructions
Published in Anais da Academia Brasileira de Ciências (2019)“…Stable isotopes have been widely used in the literature both to discuss current ocean circulation processes, as well as to reconstitute paleoceanographic…”
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