Diatom data from voyage 1 of the Investigator, 2017 - PC03 analysis contains paleoceanographic and biostratigraphic information from sediment cores collected seaward of the Totten Glacier, East Antarctica. The dataset was generated by Raffaella Tolotti under the Italian PNRA TYTAN Project, with samples collected during the 2017 RV Investigator research cruise. Analyses were performed every 20 cm on core PC03, which was noted for containing older diatom species and a condensed sedimentary sequence.
Use Cases
- Reconstructing past Southern Ocean circulation patterns using diatom assemblage variations recorded in the sediment core.
- Dating condensed sedimentary sequences by analyzing the presence of older diatom species identified in the PC03 core samples.
- Investigating glacial-interglacial cyclicity by examining diatom count data collected at 20 cm intervals for core PC03.
- Calibrating Antarctic diatom biostratigraphic zonations by comparing core samples against established DSDP and IODP reports.
Strengths
- Analyses performed at a high-resolution sampling interval of every 20 cm along the sediment core.
- Data collection follows international stratigraphic guides and decades of established DSDP/IODP Antarctic diatom protocols.
- Core PC03 provides access to an older sedimentary sequence not found in other cores from the same cruise.
Limitations
- The exact number of samples, rows, and measured columns is unknown.
- Sample data and specific file formats are unavailable, limiting immediate analytical utility.
- Data is from a single research cruise in 2017, with no stated update frequency or ongoing collection.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC), generated by Raffaella Tolotti under the Italian PNRA TYTAN Project.
- Collection Method
- Samples collected from piston core PC03 during RV Investigator cruise IN2017_V01, prepared as smear slides, with qualitative-quantitative diatom analysis performed at DISTAV laboratory, University of Genoa.
- Time Range
- Sediment cores represent Late Cenozoic depositional history; sample collection occurred in 2017.
- Freshness
- null
- Geography
- Sediment cores collected from the continental slope and rise seaward of the Totten Glacier, East Antarctica (112°E-122°E).