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  • Cs 137 dating of lacustrine sediments and human impacts on Dalian Lake, Qinghai Province, China
  • Aeolian features ; China ; Environment ; Grain size distribution ; Human impact ; Isotope analysis ; Lacustrine sedimentation ; Lake ; Qinghai ; Sedimentation rate ; Wind erosion
  • Action anthropique ; Analyse isotopique ; Chine ; Environnement ; Eolien ; Erosion éolienne ; Granulométrie ; Lac ; Qinghai ; Sédimentation lacustre ; Taux de sédimentation
  • Here the AA. report the preliminary results of Cs 137 measurements on the lacustrine sediments of Dalian Lake, Qinghai Province, China. The objectives were to determine sediment accumulation rates and trace environmental changes in the surrounding
  • Holocene climatic record from lacustrine sediments in a freshwater lake in the Vestfold Hills, Antarctica
  • Antarctica ; C14 dating ; Climatic variation ; Climatology ; Cold area ; Geochronology ; Holocene ; Lacustrine sediment ; Lake ; Sedimentology
  • Antarctique ; Climatologie ; Datation C 14 ; Géochronologie ; Holocène ; Lac ; Sédiment lacustre ; Sédimentologie ; Variation climatique ; Zone froide
  • A climate chronology is established by means of studies of lake sediment cores retrieved from Nicholson Lake, Vestfold Hills, Antarctica.
  • A sediment accumulation sensor for use in lacustrine and marine sedimentation studies
  • Fluid flow and sediment transport processes in geomorphology : innovations, insights, and advances in measurement
  • Canada ; Freshwater environment ; Ground survey ; Instrumentation ; Lacustrine sediment ; Marine environment ; Marine sediment ; Nunavut ; Palaeo-environment ; Research technique ; Sedimentology
  • Canada ; Instrumentation ; Mesure de terrain ; Milieu dulçaquatique ; Milieu marin ; Nunavut ; Paléo-environnement ; Sédiment lacustre ; Sédiment marin ; Sédimentologie ; Technique de recherche
  • A design for a sediment flux sensor is provided for use in sedimentation studies in lacustrine and shallow marine environments. The sensor utilizes an optical system to measure sediment accumulation with a data logger. Unlike other passive
  • or mechanical sediment trapping systems, the sediment flux sensor records the time of deposition precisely and therefore is useful for investigating the linkages between external processes (hydrological) and sedimentation.
  • Glacier fluctuations, suspended sediment flux and glacio-lacustrine sediments
  • Climatic variability ; Glacier ; Glacier fluctuation ; Glacier mass balance ; Holocene ; Lacustrine sediment ; Modelling ; Palaeoclimatology ; Proglacial lake ; Sweden
  • Bilan de masse ; Fluctuation du glacier ; Glacier ; Holocène ; Lac proglaciaire ; Modélisation ; Paléoclimatologie ; Suède ; Sédiment lacustre ; Variabilité climatique
  • balance and resulting glacier volume and length variations; glacier sediment production and sediment fluxes out from glaciers and proglacial areas; and finally the glacio-lacustrine record of glacier variations. They exemplify the first two components
  • with data from Storglaciären, northern Sweden, and its proglacial river and surroundings. The AA. conclude that it is necesary to consider all possible influencing factors in order to derive reliable palaeoclimate data from lacustrine sediment sequences.
  • The AA. review the different factors that potentially complicate inferences about climate-induced glacier response based on proglacial lake sediments. They discuss each component separately, starting with the climate forcing on the glacier mass
  • Radiocarbon dating of transitions between marine and lacustrine sediments and their relation to the development of lakes
  • Datation ; Géographie de l'Europe ; Holocène ; Lac ; Lagune ; Marge d'erreur ; Niveau marin ; Norvège ; PICG 200 ; Quaternaire marin ; Radiocarbone ; Sédiment lacustre ; Technique de recherche
  • In three different areas in western Norway, large errors are obtained in the radiocarbon dates from lacustrine sediments close to marine/lacustrine sediment boundaries. Differences occur between radiocarbon and pollenanalytic dates and between dates
  • Paleoecological studies of a Holocene lacustrine record from the Kangerlussuaq (Søndre Strømfjord) region of West Greenland
  • Cold area ; Deglaciation ; Fossil fauna ; Greenland ; Holocene ; Lacustrine sediment ; Limnology ; Palaeo-ecology ; Palaeoclimatology ; Palynology ; Quaternary ; Stratigraphy
  • Déglaciation ; Faune fossile ; Groenland ; Holocène ; Limnologie ; Palynologie ; Paléo-écologie ; Paléoclimatologie ; Quaternaire ; Stratigraphie ; Sédiment lacustre ; Zone froide
  • A lacustrine sediment record from the Kangerlussuaq region, West Greenland, has resulted in a pollen, macrofossil, and sediment stratigraphy that encompasses the last 5000 14C yr. The preserved record illustrates the interactions of deglaciation
  • The first dated Eemian lacustrine deposit in Romania
  • Eemian ; Interglacial ; Lacustrine sediment ; Mollusca ; Palaeo-environment ; Palynology ; Pollen diagram ; Quaternary ; Romania ; Th/U dating
  • Datation Th/U ; Diagramme pollinique ; Eémien ; Interglaciaire ; Mollusque ; Palynologie ; Paléo-environnement ; Quaternaire ; Roumanie ; Sédiment lacustre
  • A complex interglacial sequence of lacustrine sediments has been found near the village of Turbuta in NW Romania. Mollusk, plant macrofossil, and pollen analyses reflect climatic and environmental changes around the last interglacial climatic
  • optimum. U-Th TIMS dating of snails strongly indicates an Eemian age of the organic sediments.
  • Lacustrine sedimentation in a monsoon environment : the record from Phewa Tal, middle mountain region of Nepal
  • Dammed lake ; Delta ; Human impact ; Lacustrine sedimentation ; Monsoon ; Nepal ; Sedimentary ; Varves ; Watershed
  • Action anthropique ; Bassin-versant ; Delta ; Lac de barrage ; Mousson ; Népal ; Sédimentaire ; Sédimentation lacustre ; Varve
  • A watershed-scale approach to the sedimentary environment of the Phewa Tal drainage basin is used to assess rates and patterns of sediment accumulation within Phewa Tal reservoir, as a record of the impact of natural and human-induced processes
  • . The sedimentary record of Phewa Tal is analysed, and a model of sediment distribution patterns and rates of accumulation is proposed.
  • Quaternary break-out flood sediments in the Peshawar basin of northern Pakistan
  • Drainage network ; Flood ; Lacustrine sediment ; Moraine ; Pakistan ; Palaeo-environment ; Palaeolake ; Pleistocene ; Quaternary ; Thermoluminescence ; Watershed
  • Bassin-versant ; Crue ; Moraine ; Pakistan ; Paléo-environnement ; Paléolac ; Peshawar ; Pléistocène ; Quaternaire ; Réseau de drainage ; Sédiment lacustre ; Thermoluminescence
  • The physical settings of the rhythmite exposures in the Peshawar basin are discussed herein and evidence is presented that supports the hypothesis that these sediments were deposited as a result of periodic catastrophic floods, not lacustrine
  • A simple model for the interpretation of magnetic records in lacustrine and ocean sediments
  • Géographie physique ; Modèle ; Paléo-environnement ; Paléomagnétisme ; Sédiment lacustre ; Sédiment marin ; Technique de recherche
  • De nombreuses origines des minéraux magnétiques sont impliquées dans les influences sur les enregistrements magnétiques des sédiments lacustres et marins. Essai pour définir un modèle qui indique ces milieux sédimentaires où les origines des
  • U-series chronology of lacustrine deposits in Death Valley, California
  • California ; Geochemistry ; Geochronology ; Lacustrine sediment ; Lake level ; Palaeoclimate ; Pluvial ; Quaternary ; Th/U dating ; United States of America ; Uranium
  • California ; Datation Th/U ; Etats-Unis ; Géochimie ; Géochronologie ; Niveau lacustre ; Paléoclimat ; Pluvial ; Quaternaire ; Sédiment lacustre ; Uranium
  • This paper reports the chronology as established by the uranium-series dating on a core drilled from Badwater Basin in Death Valley. To assess the source of uranium in these lacustrine deposits, the AA. have also analyzed uranium and its isotopic
  • Paleoclimatic significance of late Quaternary lacustrine and alluvial stratigraphy, Animas Valley, New Mexico
  • C 14 dating ; Holocene ; Lacustrine sediment ; Lake level ; New Mexico ; Palaeoclimate ; Quaternary ; Stratigraphy ; United States of America
  • Datation C 14 ; Etats-Unis ; Holocène ; New Mexico ; Niveau lacustre ; Paléoclimat ; Quaternaire ; Stratigraphie ; Sédiment lacustre
  • The purpose of this study is to use lacustrine and alluvial stratigraphy, landforms, soil evidence, and radiocarbon ages to econstruct the latest Quaternary geologic history of the southern Animas Valley, New Mexico. Because the late Quaternary
  • Magnetomineralogy and revised excursions for the last interglacial-glacial cycle in the Grande Pile lacustrine sequence, France
  • 18 oxygen ; C14 dating ; France ; Lacustrine sediment ; Mineralogy ; Paleo-environment ; Paleomagnetism ; Palynology ; Peat lands;Peat bogs ; Pleistocene ; Quaternary ; Stratigraphy ; Vosges
  • Datation C14 ; France ; Minéralogie ; Oxygène 18 ; Palynologie ; Paléo-environnement ; Paléomagnétisme ; Pléistocène ; Quaternaire ; Stratigraphie ; Sédiment lacustre ; Tourbière ; Vosges
  • A paleomagnetic record for the Grande Pile lacustrine sequence deposited during the last interglacial-glacial cycle has been constructed based on continuous sampling of a 15-m-long oriented core (GPXX). The present work is intended to assess
  • Lacustrine shore platforms at Lake Waikaremoana, North Island, New Zealand
  • Comparative study ; Erosion rate ; Lacustrine sediment ; Lake ; Lake level ; Model ; New Zealand ; North Island ; Ocean ; Shore platform ; Weathering
  • Etude comparée ; Lac ; Modèle ; Météorisation ; Niveau lacustre ; North Island ; Nouvelle-Zélande ; Océan ; Plate-forme littorale ; Sédiment lacustre ; Vitesse d'érosion
  • This paper has 3 objectives. First, to describe the shore platforms at Lake Waikaremoana. Second, to determine whether principles governing oceanic platforms can be applied to a lacustrine setting, and third to present a conceptual model
  • Profile response of a lacustrine multiple barred nearshore to a sequence of storm events
  • Canada ; Lacustrine sedimentation ; Lake ; Lake hydrology ; Ontario ; Rainstorm ; Shoreline ; Wave
  • Canada ; Hydrologie lacustre ; Lac ; Ligne de rivage ; Ontario ; Orage ; Sédimentation lacustre ; Vague
  • The aim of this study is to characterize the response of a lacustrine multiple-barred nearshore to a sequence of storm and non-storm events at the intermediate scale. The feedback mechanisms between the pre-existing morphology and the wave forcing
  • A method for error analysis of sediment yields derived from estimates of lacustrine sediment accumulation
  • British Columbia ; Canada ; Error ; Holocene ; Lacustrine sediment ; Lake ; Methodology ; Mountain ; Regression analysis ; Sediment budget ; Sedimentology
  • Analyse de régression ; Bilan sédimentaire ; British Columbia ; Canada ; Erreur ; Holocène ; Lac ; Montagne ; Méthodologie ; Sédiment lacustre ; Sédimentologie
  • In this paper data from a series of alpine lakes in British Columbia are applied to develop a new method for deriving error estimates for measured sedimentary parameters. Regression surfaces fitted to point values of sediment mass are used to model
  • the physically controlled spatial variability of sedimentation. Deviations from these surfaces are assumed to represent remaining unstructured variance, which constitutes a conservative error estimate. The associated gains in precision justify multicore
  • approaches to lake sediment-based reconstructions of sediment yield.
  • Particularités des sédiments lacustres dans le Grand Caucase
  • Caucasus ; Europe ; Lacustrine sediment ; Lacustrine sedimentation ; Lake ; Mountain ; Sedimentology
  • Caucase ; Europe ; Lac ; Montagne ; Sédiment lacustre ; Sédimentation lacustre ; Sédimentologie
  • Des observations de terrasses complétées par des analyses lithologiques et minéralogiques des sédiments lacustres et les datations au radiocarbone révèlent une certaine logique dans la distribution des sédiments du fond, leur épaisseur et le taux de
  • sédimentation, les changements de faciès et leur relation avec le relief.
  • Lacustrine sediment studies. A technique to obtain a continuous record of Holocene glacier variations
  • Fluctuation glaciaire ; Glaciologie ; Géographie physique ; Holocène ; Quaternaire ; Sédiment lacustre ; Sédimentologie ; Technique de recherche
  • A continuous record of Holocene glacier fluctuations cannot be obtained with the techniques currently in use, which are mostly based on the dating of moraines. The likelihood of obtaining a continuous record by studying sediment cores taken from
  • lakes receiving glacial meltwater is discussed. Sediments from four lakes receiving glacial meltwater are discussed, and then compared with sediments from a lake not receiving glacial meltwater. Characteristic differences were observed in the inorganic
  • content of the sediments| sediments from non-glacial lakes were much more homogenous.
  • Physicochemical, mineralogical, and geochemical characteristics of lacustrine sediments of the Konya Basin, Turkey, and their significance in relation to climatic change
  • Anatolia ; Carbonate ; Clay mineral ; Climatic variation ; Geochemistry ; Gypsum ; Lacustrine sediment ; Oxygen 18 ; Palaeo-environment ; Quaternary ; Turkey
  • Anatolie ; Argile minéral ; Carbonate ; Gypse ; Géochimie ; Oxygène 18 ; Paléo-environnement ; Quaternaire ; Sédiment lacustre ; Turquie ; Variation climatique
  • Physicochemical, mineralogical, and geochemical characteristics of 279 highly calcareous lacustrine sediment samples obtained from a 30 m drilling core in the western part of the Great Konya Basin, Turkey were studied. The results suggest
  • that gypsum-rich layers were formed under shallow, saline waters, possibly associated with warm to hot and dry environments such as the Last Interglacial epoch and the early Holocene. The sediments characterized by relatively high amounts of non-salt sediments
  • Paleoclimatic implications of late Quaternary lacustrine sediments in Western Nubia, Sudan
  • Climatic variation ; Lacustrine sediment ; Microstructure ; Paleo-environment ; Paleoclimatology ; Quaternary ; Sudan
  • Datation C 14 ; Microstructure ; Paléo-environnement ; Paléoclimatologie ; Quaternaire ; Soudan ; Sédiment lacustre ; Variation climatique ; Western Nubia