Calcareous nannofossil data from IODP Site 371-U1509 ...

• Main Authors: Viganò, Allyson, Dallanave, Edoardo, Alegret, Laia, Westerhold, Thomas, Sutherland, Rupert, Dickens, Gerald Roy, Newsam, Cherry, Agnini, Claudia
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Calcareous nannofossils; Eocene-Oligocene Transition.; Tasman Sea; Sample ID; Sample code/label; Depth, sediment/rock, top/minimum; Depth, sediment/rock, bottom/maximum; DEPTH, sediment/rock; Blackites spp.; Bramletteius serraculoides; Calcidiscus edgariae; Chiasmolithus altus; Chiasmolithus cf. altus; Chiasmolithus oamaruensis; Chiasmolithus spp.; Clausicoccus fenestratus; Clausicoccus subdistichus; Clausicoccus spp.; Coccolithus cachaoi; Coccolithus eopelagicus; Coccolithus miopelagicus; Coccolithus pelagicus; Coronocyclus nitescens; Dictyococcites spp.; Cyclicargolithus floridanus; Dictyococcites bisectus; Dictyococcites aff. bisectus; Dictyococcites cf. filewiczii; Dictyococcites filewiczii; Dictyococcites hesslandii; Discoaster barbadiensis; Discoaster deflandrei; Discoaster distinctus; Discoaster cf. distinctus; Discoaster robustus; Discoaster saipanensis; Discoaster tanii; Discoaster tanii group; Discoaster tanii nodifer; Discoaster spp.; Ericsonia formosa; Helicosphaera bipuncta; Helicosphaera compacta; Helicosphaera euphratis; Helicosphaera cf. huangii; Helicosphaera recta; Helicosphaera cf. recta; Helicosphaera cf. wilcoxonii; Helicosphaera wilcoxonii; Helicosphaera cf. leesiae; Antarctic; Recta; Antarc*
• Online Access: https://dx.doi.org/10.1594/pangaea.963607; https://doi.pangaea.de/10.1594/PANGAEA.963607

The onset of the first sustained Antarctic glaciation at the Eocene-Oligocene Transition (~34 Ma; EOT) was marked by several changes in calcareous nannofossils coinciding with long-term cooling and modifications in the sea-surface water structure. Here, we combined a high-resolution calcareous nannofossil assemblage data (%) with bulk geochemical data from IODP Site U1509 (New Caledonia Trough, Tasman Sea) in order to give an overview of the paleoclimatic and palaeoceanographic evolution of the study area. ...