All Stories

  1. Updated multi-method estimates of Lake Titicaca's radiocarbon reservoir offset
  2. ARQUEOLOGIA EXPERIMENTAL COM FIBRAS VEGETAIS COLETADAS NOS SAMBAQUIS DA PALEOBAÍA (GUARATUBA/PR E BABITONGA/SC)
  3. The flask monitoring program for high-precision atmospheric measurements of greenhouse gases, stable isotopes, and radiocarbon in the central Amazon region
  4. How long does carbon stay in a near-pristine central Amazon forest? An empirical estimate with radiocarbon
  5. Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and intercomparison of preliminary results with Sample Preparation Laboratory (LAPA14C – UFBA)
  6. Methodological tests using Amazonian soil samples for 14C-AMS dating
  7. Radiocarbon dating in South America and the impact of the continent's first 14C‐AMS facility to archaeological research
  8. Rediscovering forgotten collections and their impact on society for the preservation of threatened archaeological sites
  9. Biogenic carbonate samples: Preliminary tests on chemical protocols for radiocarbon analysis
  10. Holocene hillslope evolution through extreme rainfall induced landslides in the mountainous region of Rio de Janeiro, Brazil: Geochronology and paleoenvironmental evidence
  11. A 1500-year multi-proxy record of subtropical mangrove dynamics in relation to sea level and climate changes on Babitonga Bay, Southern Brazil
  12. LAGOA SALGADA: AN OVERVIEW OF A BRAZILIAN HYPERSALINE LAGOON ENVIRONMENTAL STUDIES OVER THE LAST 5000 YEARS USING RADIOCARBON DATE CORRECTIONS
  13. Variations in relative sea level in south America, Brazil: A comprehensive analysis
  14. Contribuições da biologia molecular para identificação de sambaquis em áreas altamente impactadas pela urbanização
  15. Background Tests and Improvements at LAC-UFF Aiming at Sample Size Reduction in Foraminifera 14C Measurement
  16. O garimpo na Chapada Diamantina e a origem do pantanal Marimbus
  17. The variable nature of the coastal 14C marine reservoir effect: A temporal perspective for Rio de Janeiro
  18. Paleoenvironmental evolution during the Holocene of the coastal plain of Maricá, Rio de Janeiro, Brazil, through silica biomineralizations
  19. ASSESSING THE 14C MARINE RESERVOIR EFFECT IN ARCHAEOLOGICAL CONTEXTS: DATA FROM THE CABEÇUDA SHELL MOUND IN SOUTHERN BRAZIL
  20. STABLE ISOTOPIC ANALYSIS AND RADIOCARBON DATING OF MICROPOGONIAS FURNIERI OTOLITHS (SCIAENIDAE) FROM SOUTHEASTERN BRAZILIAN COAST: SEASONAL PALAEOENVIRONMENTAL INSIGHT
  21. Late Holocene mangrove dynamics of the Doce River delta, southeastern Brazil: Implications for the understanding of mangrove resilience to sea-level changes and channel dynamics
  22. Forest Fire History in Amazonia Inferred From Intensive Soil Charcoal Sampling and Radiocarbon Dating
  23. Probability Distributions of Radiocarbon in Open Linear Compartmental Systems at Steady‐State
  24. Paleoenvironmental Evolution During the Holocene of the Coastal Plain of Maricá, Rio De Janeiro, Brazil, Through Silica Biomineralizations
  25. MARINE BIOGENIC CARBONATES AND RADIOCARBON—A RETROSPECTIVE ON SHELLS AND CORALS WITH AN OUTLOOK ON CHALLENGES AND OPPORTUNITIES
  26. Sedimentary facies and Holocene depositional evolution of the Maricá Lagoon, Rio de Janeiro, Brazil
  27. How Young is a 300-Year-Old Wetland? The Case of the Pantanal Marimbus, Chapada Diamantina, Brazil
  28. Impacts of sea-level changes on mangroves from southeastern Brazil during the Holocene and Anthropocene using a multi-proxy approach
  29. Food and diet of the pre-Columbian mound builders of the Patos Lagoon region in southern Brazil with stable isotope analysis
  30. BIOINDICATORS OF SEA-LEVEL FLUCTUATIONS IN SOUTHEASTERN BRAZIL: NEW DATA AND METHODOLOGICAL REVIEW
  31. Facing Racism and Sexism in Science by Fighting Against Social Implicit Bias: A Latina and Black Woman’s Perspective
  32. Hydrological influence on the evolution of a subtropical mangrove ecosystem during the late Holocene from Babitonga Bay, Brazil
  33. FOSSIL FUEL ENVIRONMENTAL CONTAMINATION: A STRATEGY USING RADIOCARBON, N-ALKANES, AND ALGAE
  34. GÊNESE DE LINHAS DE PEDRA ATRAVÉS DE INFERÊNCIAS PALEOAMBIENTAIS NO MÉDIO VALE DO RIO PARAÍBA DO SUL, SUDESTE DO BRASIL
  35. Probability distributions of radiocarbon in open compartmental systems
  36. ESTABLISHING WATER SAMPLE PROTOCOLS FOR RADIOCARBON ANALYSIS AT LAC-UFF, BRAZIL
  37. AMOURINS SHELLMOUND: UNCOVERING BIODIVERSITY AND CHRONOLOGY THROUGH CHARCOAL ANALYSES
  38. LAC-UFF STATUS REPORT: CURRENT PROTOCOLS AND RECENT DEVELOPMENTS
  39. Facing Racism and Sexism in Science by Fighting against Social Implicit Bias: A Latin and Black Woman Perspective.
  40. PRELIMINARY RADIOCARBON DATING RESULTS OF BONE SAMPLES AT THE LAC-UFF, BRAZIL
  41. An integrated analysis of palynofacies and diatoms in the Jucuruçu River valley, northeastern Brazil: Holocene paleoenvironmental changes
  42. ANÁLISE PALEOAMBIENTAL DA PORÇÃO LESTE DA BAÍA DE GUANABARA, RJ, BRASIL, ATRAVÉS DE BIOMINERALIZAÇÕES DE SÍLICA
  43. Cold and humid Atlantic Rainforest during the last glacial maximum, northern Espírito Santo state, southeastern Brazil
  44. HOLOCENE EVOLUTION OF A WAVE-DOMINATED BARRIER-LAGOON SYSTEM IN RIO DE JANEIRO, BRAZIL
  45. Corrigendum to “Relative sea-level change and climate change in the Northeastern Adriatic during the last 1.5 ka (Istria, Croatia)” [Quat. Sci. Rev. 222 (2019) 105909]
  46. RECONSTITUIÇÃO DAS CONDIÇÕES PALEOAMBIENTAIS RELACIONADAS À OCORRÊNCIA DE LINHAS DE PEDRA EM LATOSSOLO NO MÉDIO VALE DO RIO PARAÍBA DO SUL-RJ
  47. ARAGONITE FRACTION DATING OF VERMETIDS IN THE CONTEXT OF PALEO SEA-LEVEL CURVES RECONSTRUCTION
  48. Impacts of Holocene and modern sea‐level changes on estuarine mangroves from northeastern Brazil
  49. Concheros brasileños desde una perspectiva zooarqueológica
  50. Landscape paleodynamics in siliciclastic domains with the use of phytoliths, sponge spicules and carbon isotopes: The case of southern Espinhaço Mountain Range, Minas Gerais, Brazil
  51. Relative sea-level change and climate change in the Northeastern Adriatic during the last 1.5 ka (Istria, Croatia)
  52. Monitoring the biogenic fraction of sugarcane-based plastic bags
  53. ORIGIN AND ALTERATION OF ORGANIC MATTER IN HYDRATE-BEARING SEDIMENTS OF THE RIO GRANDE CONE, BRAZIL: EVIDENCE FROM BIOLOGICAL, PHYSICAL, AND CHEMICAL FACTORS
  54. Assessment of the regional fossil fuel CO2 distribution through Δ14C patterns in ipê leaves: The case of Rio de Janeiro state, Brazil
  55. Annually Verified Growth of Cedrela Fissilis from Central Brazil
  56. Paleovegetation and paleoclimate dynamics during the last 7000 years in the Atlantic forest of Southeastern Brazil based on palynology of a waterlogged sandy soil
  57. Accounting for the marine reservoir effect in radiocarbon calibration
  58. Marine Reservoir Corrections for the Brazilian Northern Coast Using Modern Corals
  59. Assessing the dead carbon proportion of a modern speleothem from central Brazil
  60. Palaeoenvironmental dynamics of Holocene shoreface bryoliths from the southern coast of Brazil
  61. Otolith-based chronology of Brazilian Shellmounds
  62. Late-Holocene subtropical mangrove dynamics in response to climate change during the last millennium
  63. Os primeiros povoadores do litoral norte do Espírito Santo: uma nova abordagem na arqueologia de sambaquis capixabas
  64. Zooarchaeological evidence that the brown mussel (Perna perna) is a bioinvader of coastal Brazil
  65. Late Holocene palaeotemperatures and palaeoenvironments in the Southeastern Brazilian coast inferred from otolith geochemistry
  66. Post-caldera evolution of Deception Island (Bransfield Strait, Antarctica) over Holocene timescales
  67. An 11,000-year record of depositional environmental change based upon particulate organic matter and stable isotopes (C and N) in a lake sediment in southeastern Brazil
  68. The Marine Reservoir Effect on the Coast of Rio de Janeiro: Deriving ∆R Values from Fish Otoliths and Mollusk Shells
  69. The Worldwide Marine Radiocarbon Reservoir Effect: Definitions, Mechanisms, and Prospects
  70. Efeito de reservatório marinho na costa do Brasil
  71. Fractionation in the graphitization reaction for 14 C-AMS analysis: The role of Zn × the role of TiH 2
  72. Stromatolite growth in Lagoa Vermelha, southeastern coast of Brazil: evidence of environmental changes
  73. Investigating a Rock Art Site in Paraná State, South of Brazil
  74. Characterisation of phytoliths from the stratigraphic layers of the Sambaqui da Tarioba (Rio das Ostras, RJ, Brazil)
  75. Charcoal chronology of the Amazon forest: A record of biodiversity preserved by ancient fires
  76. Late Holocene mangrove dynamics dominated by autogenic processes
  77. Terrestrial Mollusks as Chronological Records in Brazilian Shellmounds
  78. HOLOCENE PALEO-SEA LEVEL IN SOUTHEASTERN BRAZIL: AN APPROACH BASED ON VERMETIDS SHELLS
  79. NORTHEAST GUANABARA BAY AND COASTAL PLAIN HOLOCENE SEDIMENTARY EVOLUTION (BRAZIL): A CONTRIBUTION
  80. The Impacts of the Middle Holocene High Sea-Level Stand and Climatic Changes on Mangroves of the Jucuruçu River, Southern Bahia – Northeastern Brazil
  81. Archaeological Earthen Mound Complex in Patos Lagoon, Southern Brazil: Chronological Model and Freshwater Influence
  82. Graphitization reaction via zinc reduction: How low can you go?
  83. Millennial to secular time-scale impacts of climate and sea-level changes on mangroves from the Doce River delta, Southeastern Brazil
  84. The Usiminas shellmound on the Cabo Frio Island: Marine reservoir effect in an upwelling region on the coast of Brazil
  85. Evaluation of Sample Preparation Protocols for the 14C Dating of Tupiguarani Pottery in Southeastern Brazil
  86. Radiocarbon Marine Reservoir Effect on the Northwestern Coast of Cuba
  87. Optimization of the Amount of Zinc in the Graphitization Reaction for Radiocarbon AMS Measurements at LAC-UFF
  88. The Path towards Endangered Species: Prehistoric Fisheries in Southeastern Brazil
  89. The use of the terrestrial snails of the genera Megalobulimus and Thaumastus as representatives of the atmospheric carbon reservoir
  90. Coupling fallout 210Pb and stables isotopes (δ13C, δ15N) for catchment urbanization reconstruction in southeastern coastal zone of Brazil
  91. Paleobiogeoclimatic scenarios of the Late Quaternary inferred from fluvial deposits of the Quadrilátero Ferrífero (Southeastern Brazil)
  92. Corrigendum to ‘Radiocarbon reservoir corrections on the Brazilian coast from prebomb marine shells’ [Quat. Geochronol. 29 (2015) 30–35]
  93. Fish bone diagenesis in southeastern Brazilian shell mounds and its importance for paleoenvironmental studies
  94. Radiocarbon measurements at LAC-UFF: Recent performance
  95. Advances in the graphitization protocol at the Radiocarbon Laboratory of the Universidade Federal Fluminense (LAC-UFF) in Brazil
  96. New software for AMS data analysis developed at IF-UFF Brazil
  97. Radiocarbon analysis of the Torah scrolls from the National Museum of Brazil collection
  98. Biogenic fraction in the synthesis of polyethylene terephthalate
  99. Radiocarbon reservoir corrections on the Brazilian coast from pre-bomb marine shells
  100. Mapping of gas charged sediments in Guanabara Bay: Seismic characteristics and sediment properties
  101. Sedimentary evolution of northeastern Guanabara Bay, RJ, revealed by sismoestratigraphic analysis
  102. Marine reservoir effect on the Southeastern coast of Brazil: results from the Tarioba shellmound paired samples
  103. Fitólitos como indicadores de mudanças ambientais durante o Holoceno na costa norte do estado do Espírito Santo (Brasil)
  104. Marine Reservoir Corrections on the Southeastern Coast of Brazil: Paired Samples from the Saquarema Shellmound
  105. Potential Use of Archaeological Snail Shells for the Calculation of Local Marine Reservoir Effect
  106. Understanding Holocene variations in the vegetation of Sao Joao River basin, southeastern coast of Brazil, using phytolith and carbon isotopic analyses
  107. Evidence of strong storm events possibly related to the little Ice Age in sediments on the southerncoast of Brazil
  108. Landscape evolution during the late Quaternary at the Doce River mouth, Espírito Santo State, Southeastern Brazil
  109. Palynofacies and stable C and N isotopes of Holocene sediments from Lake Macuco (Linhares, Espírito Santo, southeastern Brazil): Depositional settings and palaeoenvironmental evolution
  110. Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion–adsorption model of uranium uptake
  111. USO DO BIOINDICADOR FITÓLITOS NA COMPREENSÃO DA GÊNESE DE SOLOS NA BACIA DO RIO SÃO JOÃO, RIO DE JANEIRO, BRASIL
  112. Chronological Model of a Brazilian Holocene Shellmound (Sambaqui da Tarioba, Rio de Janeiro, Brazil)
  113. Palaeohydrological controls on sedimentary organic matter in an Amazon floodplain lake, Lake Maracá (Brazil) during the late Holocene
  114. Mangrove vegetation changes on Holocene terraces of the Doce River, southeastern Brazil
  115. Temporal evolution of 137Cs+, K+ and Na+ in fruits of South American tropical species
  116. The Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and the Intercomparison of Results with CENA and UGAMS
  117. The Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and the Intercomparison of Results with CENA and UGAMS
  118. Towards a complete 14C AMS facility at the Universidade Federal Fluminense (Niterói, Brazil): Sample preparation laboratory tests
  119. Application of radiometric analysis in the study of provenance and transport processes of Brazilian coastal sediments
  120. A New [sup 14]C-AMS Facility at UFF- Niteroi, Brazil
  121. Accumulation of K[sup +] and Cs[sup +] in Tropical Plant Species
  122. Correlations between radiometric analysis of Quaternary deposits and the chronology of prehistoric settlements from the southeastern Brazilian coast
  123. Accumulation of 137Cs and 40K in aboveground organs of tropical woody fruit plants
  124. The Long-Term Tupiguarani Occupation in Southeastern Brazil
  125. A new age to an old site: the earliest Tupiguarani settlement in Rio de Janeiro State?
  126. Natural sources of radiation exposure and the teaching of radioecology
  127. Reevaluation of dating results for some 14C - AMS applications on the basis of the new calibration curves available
  128. Provenance and Transport Processes of Sediments along the Southeastern Brazilian Coast
  129. Accumulation and long-term decline of radiocaesium contamination in tropical fruit trees
  130. Geological provenance of Quaternary deposits from the southeastern Brazilian coast
  131. Accumulation and distribution of 137Cs in tropical plants
  132. Radiometric Analyses of Beach Sands from the Southeast of Brazil
  133. Accumulation and long-term behavior of radiocaesium in tropical plants
  134. Radiometric analysis of Quaternary deposits from the southeastern Brazilian coast
  135. Measurement of natural radioactivity in Brazilian beach sands
  136. Radiocesium contamination behavior and its effect on potassium absorption in tropical or subtropical plants
  137. AMS radiocarbon dating on Campos Basin, Southeast Brazilian Continental Slope
  138. Intermittent occupation of the sambaqui builder settlements in Rio de Janeiro State, Brazil
  139. The earliest shellmounds of the central-south Brazilian coast
  140. AMS dating of early shellmounds of the southeastern Brazilian coast
  141. The Antiquity of the Prehistoric Settlement of the Central-South Brazilian Coast
  142. Current status of the Brazilian AMS program