Nonmarine ostracods as Quaternary paleoenvironmental indicators
This review begins with a brief summary of the biology, taxonomy and ecology of ostracods. It then reviews recent research on Quaternary nonmarine ostracods, and outlines some of the more important literarure on the subject.
The study is divised into two parts: 1. a comparison of cold shallow-water, cold-climate fossil ostracods from southern Manitoba with modern counterparts in the arctic (Somerset side) and 2. a comparison of warm-water, temperature-climate fossil
The marine ostracod record from the Lateglacial period in Britain and NW Europe: a review in Studies in the Lateglacial of North-West Europe.
Europe ; Europe du Nord-Ouest ; Géographie physique ; Ostracode ; Paléoclimatologie ; Quaternaire zones moyennes ; Tardiglaciaire
For over a century ostracods have been mentioned in accounts of glacial and Lateglacial successions. The history of such ideas and the assumptions behind them are reviewed and summarised. At best, the ostracod record for the Lateglacial offers
. There are still problems when correlation is attempted from west to east coast sequences in Scotland, and correlation is sought with the published North Sea records. Such problems require fuller, more detailed study of continuous cores for ostracod data
and the support of absolute age determinations. Ostracod faunal studies in Scandinavia need to be undertaken to provide the information on which to base comparisons for north-west Europe.
A long lacustrine core was drilled in the Nam Co in the central-southern part of the Tibetan Plateau. From the core, 15 species of ostracods (Crustacea: Ostracoda), which belong to 6 genera have been identified. According to the variations
of the ostracod assemblages and the ostracods ecological features, which are sensitive to the changing environment, 3 main stages can be distinguished. These results elucidate the history and process of the environmental changes in this area.
The data of this paper show the potential for using isotopic analyses of ostracodes to learn about the isotopic composition of terrestrial meltwater from the Laurentide Ice Sheet. These midcontinent data are especially valuable because they help
Ostracode geochemical record of Holocene climatic change and implications for vegetational response in the Northwestern Alaska Range
Trace-element analysis of the calcareous shells of ostracodes in a sediment core from Farewell Lake provides the first limno-geochemical record for climatic reconstructions in Alaska. When compared with pollen data from the same site, this record
. Notamment la découverte d'une faune d'ostracodes indique une origine lacustre. Ces nouvelles observations paléontologiques exigent une réévaluation de la stratigraphie quaternaire du bassin de l'Ontario et suggèrent que l'inlandsis laurentidien dans la
d'ostracodes, identifiés dans une carotte prélevée dans la partie sud du lac Manitoba. Mise en évidence, au cours de l'Holocène, de variations paléochimiques liées aux changements de proportion du ruissellement en nappe et des précipitations par rapport aux
Glacial meltwater in Lake Huron during Early Postglacial Time as inferred from single-valve analysis of oxygen isotopes in ostracodes
δ18O measurements of benthic ostracodes are used to reconstruct the δ18O history of Lake Huron and Georgian Bay water between 10,600 and 7600 14C yr B.P. This δ18O record was calibrated using a comparison of the δ18O values of modern ostracodes
Etude populationniste du genre Cytherella (Ostracodes) dans les faciès bathyaux du Paléogène aquitain. Intérêt dans la reconstitution des paléoenvironnements
A l'occasion du forage Antarès 101 dans le Paléogène en bordure de la plate-forme continentale, les variations constatées dans les faunes d'Ostracodes révèlent des phases d'activité tectonique à l'Eocène et à l'Oligocène qui ont modifié les
Etude de pollen et des ostracodes du travertin d'Annevoie-Rouillon (Belgique) : reconstitution de l'évolution paléoenvironnementale au cours du Boréal et de l'Atlantique
Les 6 derniers mètres de l'édification du travertin d'Annevoie-Rouillon couvrent la fin du Boréal et une partie de l'Atlantique. Leur étude montre que l'analyse du contenu en ostracodes des travertins se révèle complémentaire de celle du pollen. La
répartition stratigraphique des différentes espèces d'ostracodes précise les conditions écologiques locales. Elle met en évidence les conditions hydrologiques du milieu qui sont elles-mêmes liées aux conditions climatiques. le pollen apporte une réponse
Formation, age and ostracod ecology of paleo-lake deposits in the Gangou valley, eastern Tian Shan (NW China)
Les AA. étudient les dépôts alluviaux et paléo-lacustres qui forment la partie supérieure de la vallée désertique de Gangou dans le Tian Shan oriental (nord ouest de la Chine). L'analyse sédimentologique et la présence de coquillages ostracodes
Marine ostracodes from 50 localities were studied to determine the age and elevation of Pleistocene sea levels in the Atlantic coastal plain from Maryland to northern Florida. Using ostracode taxon and concurrent ranges, published planktic
biostratigraphic, paleomagnetic, and radiometric data, ostracode assemblage zones representing early (1.81.0my), middle (0.70,4my), and late (0.30.01my) Pleistocene deposition were recognized and used as a basis for correlation. Ostracode biofacies signifying
of ostracods, molluscs, and the dated moss all support a young deglacial scenario. The ice margin appears to have retreated into the southern Lake Agassiz basin after 12 000 yr B.P. and north of the Rossendale site by 11 000 B.P. About 10 000 yr B.P., following