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  • GISP2 oxygen isotope ratios
  • The Greenland Ice Sheet Project 2 (GISP2) oxygen isotope record, with its high-resolution detail, yields crucial information on past climate change. Here the AA. present high-resolution GISP2 oxygen isotope records and mention some of their climatic
  • implications, with emphasis on the abrupt switches in isotope ratios in the Northern Hemisphere.
  • 2000
  • Holocene paleohydrology and paleoclimate at treeline, North-Central Russia, inferred from oxygen isotope records in lake sediment cellulose
  • The AA. use lake-water oxygen-isotope histories, inferred from stratigraphic analysis of cellulose in the fine-grained fraction of lake-sediment cores, to reconstruct Holocene paleohydrology at the boreal treeline near the lower Yenisey and Lena
  • Rivers of northern Russia. These studies are supplemented by isotopic analysis of samples of modern meteoric water, including precipitation, groundwater, and ground-ice, which provide insight into the modern isotope hydrology. The isotopic records
  • 2000
  • Holocene climate variability in Antarctica based on 11 ice-core isotopic records
  • Antarctica ; Climatic variation ; Holocene ; Ice core ; Ice sheet ; Isotope analysis ; Oxygen 18 ; Quaternary ; Spatial variation
  • A comparison is made of the Holocene records obtained from water isotope measurements along 11 ice cores from coastal and central sites in east Antarctica and west Antarctica. the longterm trends possibly reflect local ice sheet elevation
  • 2000
  • Amino acids and stable carbon isotope distributions in Taihu Lake, China, over the last 15,000 years, and their paleoecological implications
  • Aminostratigraphy ; Carbon ; China ; Climatic variation ; Geochemistry ; Holocene ; Isotope analysis ; Jiangsu ; Lacustrine sediment ; Lake ; Palaeo-ecology ; Quaternary ; Zhejiang
  • Amino acid, organic nitrogen, and stable carbon isotope (C 13/C 12) profiles through a core from East Taihu Lake are interpreted in terms of paleoecology and paleoclimate over the last 15,000 yr. The average δ C 13 values from a core from West Taihu
  • 2000
  • Atlantic Ocean ; Foraminifera ; Isotope analysis ; North Atlantic Ocean ; Oxygen 18 ; Palaeo-ecology ; Palaeo-environment ; Quaternary ; Water mass
  • This study shows that multi-specific isotopic measurements in foraminifer assemblages from high sedimentation rate sites may provide indications on high frequency instabilities in the overlying water column. Unfortunately, it also shows
  • that unequivocal interpretation of isotopic offsets between epipelagic, mesopelagic and benthic species are unlikely. Other proxies are needed to constrain temperature and salinity conditions at a given depth in order to transcribe isotopic offsets in the water
  • 2000
  • Absolute dating ; Dating ; Geochronology ; Geomorphology ; Isotope dating ; Methodology
  • Revue des publications récentes sur le développement des isotopes utilisables pour dater des périodes de cent mille à dix millions d'années et sur les techniques de datation absolue disponibles pour quantifier des processus géomorphologiques au
  • 2000
  • Bolivia ; Carbon ; Chronostratigraphy ; Climatic variation ; Isotope analysis ; Mammal ; Oxygen 18 ; Palaeo-environment ; Pleistocene ; Quaternary
  • Fossiliferous middle Pleistocene sediments of the Tarija basin of southern Bolivia contain a classic Ensenandan land-mammal fauna. New carbon isotopic data reported here for 5 specimens of the grazing mammals Equus (horse) and Cuvieronius (mastodon
  • ), documented from 8 stratigraphic levels at Tarija, vary significantly in the C 13 values of their teeth. These new isotopic data are used here to identify warm-cold paleoclimatic cycles during the middle Pleistocene and clarify the upper limit
  • 2000
  • Dating ; European part of Russia ; Isotope dating ; Methodology ; Radioactivity ; Russian Plain ; Soil erosion
  • Approches méthodologiques générales pour l'utilisation de l'isotope césium 137 dans les étude d'érosion et d'accumulation. Particularités de l'utilisation du césium radioactif dans l'étude de ces processus géomorphologiques. Exemple d'étude de la
  • 2000
  • Caucase ; Deutérium ; Eau souterraine ; Gisement ; Géochimie ; Hydrocarbure ; Hydrochimie ; Hydrothermal ; Isotope ; Oxygène 18 ; Russie d'Europe
  • Caucasus ; Deuterium ; European part of Russia ; Geochemistry ; Geological field ; Groundwater ; Hydrocarbon ; Hydrochemistry ; Hydrothermal ; Isotope ; Oxygen 18
  • 2000
  • Agricultural land use ; Derbyshire ; England ; Human impact ; Hydrochemistry ; Hydrogeology ; Isotope analysis ; Karst ; Mining activity ; Sulphur dioxide ; United Kingdom ; Watershed
  • In this study, the AA. use isotopic techniques to distinguish sulphur sources and processes affecting the hydrochemistry of sulphur in a mixed allogenic-autogenic karst carchment in central England, which is influenced by both natural
  • 2000
  • Climate variability in East-Central California during the past 1000 years reflected by high-resolution geochemical and isotopic records from Owens Lake sediments
  • 2000
  • Arid area ; California ; Dating ; Desert ; Geomorphometry ; Isotope dating ; Pleistocene ; Slope deposit ; Slope dynamics ; Slope gradient ; United States of America
  • -varnished vertically-oriented colluvial deposits that appear similar to relict periglacial stone stripes. Basic field and isotopic dating methods are combined with 2 relatively new surface dating techniques, cosmogenic chlorine-36 and rock varnish
  • 2000
  • Baden-Württemberg ; Carbonate rock ; Climatic variation ; Geochemistry ; Germany ; Interglacial ; Isotope dating ; Palaeoclimate ; Quaternary ; Stratigraphy ; Travertine
  • 2000
  • C 14 dating ; Geochemistry ; Geochronology ; Ichtyofauna ; Isotope dating ; Lake ; Lake level ; Palaeo-environment ; Quaternary ; Salinity ; Salt lake ; Taxonomy ; United States of America ; Utah
  • 2000
  • Antarctica ; Australia ; Dating ; Desert ; Ice sheet ; Isotope dating ; Meteorite ; Palaeoclimate ; Quaternary ; Weathering ; Western Australia
  • 2000
  • This paper deals with the fluvial evolution of a selection of European rivers during the Middle Weichselian (oxygen isotope stages 2,3 and 4). Two sequences in the Leipzig area and the Niederlausitz in eastern Germany are presented, and the fluvial
  • 2000
  • Antarctica ; Carbonate ; Climatic variation ; Glacier fluctuation ; Isotope analysis ; Lacustrine sediment ; Lake ; Lake level ; Meltwater ; Palaeogeography ; Proglacial lake ; Quaternary
  • 2000
  • Archaean ; Canada ; Correlation ; Glacial features ; Isotope analysis ; Northwest Territories ; Palaeo-environment ; Quaternary ; Regional geology
  • Nord. Mise en évidence de l'avantage de l'utilisation combinée d'isotopes pour caractériser l'historique géologique des sources de sédiments.
  • 2000
  • China ; Climatic variability ; Geochemistry ; Isotope analysis ; Lacustrine sediment ; Lake ; Nineteenth Century ; Palaeo-environment ; Precipitation ; Temperature ; Tibet ; Twentieth Century
  • 2000
  • Africa ; Antiquity ; Coastal environment ; Coastal geomorphology ; Concept ; France ; Historical geography ; Isotope dating ; Landscape ; Languedoc-Roussillon ; Palaeo-environment ; Source of documentation ; Topography
  • 2000