http://www.deepseadrilling.org/27/volume/dsdp27_31.pdf WebSphenolithus neoabies, the presence of A ngulolithina area and Hayaster perplexus, and the high diversity and abundance of species of Scyphosphaera. A comparison of the relative abundance of the cool-water species Coc-colithus pelagicus with the warm-water genus Discoaster for the upper Pliocene at Site 317 indicates that slightly
Biostratigraphy and paleoenvironment implications of the
WebFeb 8, 2024 · In the southeastern Mediterranean of the Nile Delta, the Middle Miocene-Early Pliocene sequence was investigated biostratigraphically using calcareous nannofossil and planktonic foraminifera. Two wells were chosen from the El-Wastani gas field, onshore Nile Delta, namely, EWW1-St2 and EWE-2. The studied wells consist from older to younger four … WebAge Rock Unit Sample No. Abundance Preservation Biozone Calcidiscus macintyrei Calcidiscus tropicus Discoaster surculus Helicosphaera carteri Reticulofenestra minutia Reticulofenestra minutula Reticulofenestra pseudoumbilicus * Sphenolithus abies* Sphenolithus neoabies Calcidiscus leptoporus Discoaster brouweri Pontosphaera … const args arguments
Sphenolithus neoabies - Wikispecies - Wikimedia
WebDistinguishing features: Parent taxon (Sphenolithus abies): Moderately elevated sphenolith with cuspate outline and with extinction line going down long axis of spine. This taxon: Like S. abies/moriformis but smaller, <4µm & base broad. Farinacci & Howe catalog pages: S. … WebNov 19, 2024 · The calcareous nannofossil zones/subzones are from older to younger, NN6, NN10a, NN11b, NN11c, NN12b, and NN13, while the planktonic foraminiferal zones/subzones are MMi7b, MMi11, NDZ, MPl1, and... WebA disconformity exists in the upper Miocene (indicated by the absence of Zones NN9 and NN10) and in the Pliocene (indicated by the absence of Zones NN13–NN17). The … const array c