Takata, Hiroyuki; Khim, Boo-Keun; Hyeong, Kiseong; Seo, Inah; Huh, Youngsook; Asahi, Hirofumi; Lee, Jongmin; Seto, Koji (2023): Sediment geochemical and stable isotope data of sediment core GPC04 at the Ninetyeast Ridge, Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962907
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Published: 2023-11-03 • DOI registered: 2023-11-03
Abstract:
We investigated benthic foraminifera in cores GPC03 and GPC04 in the northeast tropical Indian Ocean (TIO) over the past ~450 ka to evaluate the ballasting effect of particulate organic matter (POM) and the long-term zonal change during the mid-Brunhes dissolution interval (MBDI). Today, interannual climate and oceanographic variability in the TIO is governed by the Indian Ocean Dipole (IOD), which manifests as asymmetric zonal oceanographic change. Here we provide our sediment geochemical, stable oxygen and carbon isotope data and faunal data of benthic foraminifera in core GPC04.
Supplement to:
Takata, Hiroyuki; Khim, Boo-Keun; Hyeong, Kiseong; Seo, Inah; Huh, Youngsook; Asahi, Hirofumi; Seto, Koji (in review): Ballasting of particulate organic matter at the Ninetyeast Ridge during the mid-Brunhes dissolution interval and long-term implications for zonal change in tropical Indian oceanography. Paleogeography and Paleoclimatology
Related to:
Takata, Hiroyuki; Khim, Boo-Keun; Hyeong, Kiseong; Seo, Inah; Huh, Youngsook; Asahi, Hirofumi; Lee, Jongmin; Seto, Koji (2023): Occurrences of fossil benthic foraminifera in sediment core GPC04 at the Ninetyeast Ridge, Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962906
Coverage:
Latitude: 5.400000 * Longitude: 90.363000
Date/Time Start: 2018-07-01T00:00:00 * Date/Time End: 2018-07-01T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 5.00 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Khim, Boo-Keun | Geocode | |
| 2 | AGE | Age | ka BP | Asahi, Hirofumi | Oxygen isotope stratigraphy; Hidden Markov Model (HMM) | Geocode |
| 3 | Sodium oxide | Na2O | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 4 | Magnesium oxide | MgO | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 5 | Aluminium oxide | Al2O3 | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 6 | Silicon dioxide | SiO2 | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 7 | Phosphorus pentoxide | P2O5 | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 8 | Sulfur | S | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 9 | Potassium oxide | K2O | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 10 | Calcium oxide | CaO | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 11 | Titanium dioxide | TiO2 | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 12 | Manganese oxide | MnO | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 13 | Iron oxide, Fe2O3 | Fe2O3 | % | Takata, Hiroyuki | X-ray fluorescence (XRF), discrete measurement | |
| 14 | Principal component loading of PC axis 1 | PC axis 1 | Takata, Hiroyuki | Principal component analyses (PCA) | PC axis 1 | |
| 15 | Trilobatus sacculifer, δ18O | T. sacculifer δ18O | ‰ PDB | Khim, Boo-Keun | Isotope ratio mass spectrometry | |
| 16 | Trilobatus sacculifer, δ13C | T. sacculifer δ13C | ‰ PDB | Khim, Boo-Keun | Isotope ratio mass spectrometry |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1364 data points