Lower Oligocene-Lower Miocene diatom biostratigraphy and taxonomy from the Victoria Land Basin, Antarctica.

• Main Author: Olney, Matthew Palmer.
• Other Authors: Reed Scherer., Includes supplementary digital materials.
• Language: unknown
• Published: Northern Illinois University. 2006
• Subjects: Geology; Paleontology; Sequence stratigraphy; Basins (Geology) Antarctica Victoria Land; Eocene-Oligocene boundary Antarctica Victoria Land; Geology Antarctica Victoria Land Classification; Victoria Land (Antarctica); Antarctic; Cape Roberts; Southern Ocean; Victoria Land; Antarc*; Antarctica
• Online Access: http://commons.lib.niu.edu/handle/10843/11589; http://hdl.handle.net/10843/11589

Sorry, the full text of this article is not available in Huskie Commons. Please click on the alternative location to access it. 192 p. The Cape Roberts Project (CRP) recovered a composite Eocene to lower Miocene stratigraphic sequence from the Victoria Land Basin, Antarctica. Biosiliceous microfossils recovered from the CRP cores provide both paleoenvironmental and biostratigraphic information, enhancing our understanding of the geological history of the Victoria Land Basin, Antarctica. The biochronostratigraphic record obtained provides key data with which time-space-facies models may be developed. Assemblages of neritic and pelagic microfossils such as those from the CRP drill-cores provide links between the primarily pelagic microfossil-derived chronostratigraphy of the Southern Ocean and the facies models of the neritic zone.I present an updated biostratigraphy and zonation scheme based on the latest taxonomic concepts and on new quantitative and qualitative siliceous microfossil data from the CRP-2/2A drillcore, including descriptions of ten new diatom taxa used in the delineation and definition of Antarctic nearshore diatom zonal boundaries. New taxa included are: Kisseleviella tricoronata, Kisseleviella cicatricata, Kisseleviella gaster, Kisseleviella faballiforma, Fragilariopsis truncata, Cymatosira palpebraforma, Rhizosolenia fidicularis, Hemiaulus angustobrachiatus, Synedropsis creanii and Synedropsis cheethamii.I also present a report on the biosiliceous microfossils contained in the CRP-3 drillcore which include a significantly different assemblage to that contained in the CRP-2/2A drillcores. While several taxa do occur in both cores there are sufficient differences between the assemblages to be able to be confident there is no overlap between the cores. Taxonomic concepts for the diverse assemblage contained in the CRP-3 drillcore are also discussed and clarified.**This dissertation is a compound document (contains both a paper copy and a CD as part of the dissertation). The CD requires the following system requirements: Microsoft Office.