Ha, Sangbeom; Lee, Jae Il; Bak, Young-Suk; Yoo, Kyu-Cheul; Khim, Boo-Keun (2024): Diatom assemblage of gravity core DG12-GC04 obtained on the Drygalski Basin in the Ross Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966578, In: Ha, S et al. (2024): Sediment properties, geochemical proxies, clay mineral composition and diatom assemblage of gravity cores obtained on the Drygalski Basin in the Ross Sea since Last Glacial Maximum [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.966442
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Published: 2024-11-01 • DOI registered: 2024-11-30
Abstract:
The samples for diatom assemblage were selected at nine horizons from GC01 and GC04, respectively. The sediment treatment, slide preparation, and diatom counting were carried out at Jeonbuk National University. The quantitative analysis of the diatom slides was performed according to the procedure described in Scherer (1994). The absolute abundance was calculated as follows:
Abundance = ((number of specimens counted × area of the settling chamber) / (number of microscope fields of view × area of the field of view)) ÷ sample mass.
Chaetoceros resting spores were not included in specimen counting.
Keyword(s):
Related to:
Ha, Sangbeom; Lee, Jae Il; Bak, Young-Suk; Yoo, Kyu-Cheul; Khim, Boo-Keun (2023): Paleoenvironmental reconstruction of glaciomarine sediments in the Drygalski Basin of the western Ross Sea since the Last Glacial Maximum. Sedimentary Geology, 456, 106495, https://doi.org/10.1016/j.sedgeo.2023.106495
References:
Scherer, Reed P (1994): A new method for the determination of absolute abundance of diatoms and other silt-sized sedimentary particles. Journal of Paleolimnology, 12(2), 171-179, https://doi.org/10.1007/BF00678093
Coverage:
Latitude: -75.088500 * Longitude: 165.057300
Date/Time Start: 2012-01-13T00:00:00 * Date/Time End: 2012-01-13T00:00:00
Minimum DEPTH, sediment/rock: 0.08 m * Maximum DEPTH, sediment/rock: 3.18 m
Event(s):
DG12-GC04 (DG12-04) * Latitude: -75.088500 * Longitude: 165.057300 * Date/Time: 2012-01-13T00:00:00 * Elevation: -1165.0 m * Location: Drygalski Basin * Campaign: DG12 (Drygalski Basin 2012) * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Ha, Sangbeom | Geocode | |
| 2 | Diatoms | Diatoms | #/g | Ha, Sangbeom | Counting, diatoms | Valves |
| 3 | Actinocyclus actinochilus | A. actinochilus | # | Ha, Sangbeom | Counting, diatoms | |
| 4 | Eucampia antarctica var. recta | E. antarctica var. recta | # | Ha, Sangbeom | Counting, diatoms | |
| 5 | Fragilariopsis curta | F. curta | # | Ha, Sangbeom | Counting, diatoms | |
| 6 | Fragilariopsis kerguelensis | F. kerguelensis | # | Ha, Sangbeom | Counting, diatoms | |
| 7 | Fragilariopsis obliquecostata | F. obliquecostata | # | Ha, Sangbeom | Counting, diatoms | |
| 8 | Paralia sulcata | P. sulcata | # | Ha, Sangbeom | Counting, diatoms | |
| 9 | Thalassiosira antarctica | T. antarctica | # | Ha, Sangbeom | Counting, diatoms | cold type |
| 10 | Chaetoceros, resting spores | Chaetoceros rs | # | Ha, Sangbeom | Counting, diatoms |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
42 data points
Download Data
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