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Organic-walled microfossils in the Oligocene Grimmertingen and Neerrepen sand members from the Grimmertingen type locality
Deconinck, J. (2001). Organic-walled microfossils in the Oligocene Grimmertingen and Neerrepen sand members from the Grimmertingen type locality. Professional Paper. Geological Survey of Belgium, 2001/02(294). Geologische Dienst van België: Brussel. 57 pp., 4 figs, 3 tabs, 13 pls pp.
Part of: Professional Paper. Geological Survey of Belgium. Belgische Geologische Dienst: Brussel. ISSN 0378-0902, more
Peer reviewed article  

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Document type: Scientific report

Keywords
    Belgium; Eocene; Geology; Oligocene; Palaeontology; Priabonian; Acritarcha; Chlorophyceae [WoRMS]; Dinoflagellata [WoRMS]; Prasinophyceae [WoRMS]; Belgium, Kortessem [Marine Regions]; Marine
Author keywords
    organic-walled microfossils - Eocene-Oligocene - Lower Tongrian - Belgian Basin

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  • Deconinck, J., more

Abstract
    Rich assemblages of organic-walled microfossils are present in the Grimmertingen Sands and Neerrepen Sands sampled in the type section of the Grimmertingen Member. Comparison with the distribution of the taxa in the Upper Eocene and Lower Oligocene deposits in the Kallo borehole and in the Rupelian type area point to a correlation with the upper part of the Bassevelde Sands Member, and with the Watervliet Clay and Wintham Silt Members. The distribution of taxa with paleoenvironmental significance indicate a cooling trend in the upper part of the Grimmertingen Sands and a subsequent phase of lowering sea level corresponding with the Neerrepen Sands. One new species, and three species under open nomenclature are described.

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