Asami, Ryuji; Felis, Thomas; Shinjo, Ryuichi; Murayama, Masafumi; Iryu, Yasufumi (2025): Geochemical data from IODP Expedition 310 Tahiti fossil corals [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.987216
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Published: 2025-11-21 • DOI registered: 2025-11-28
Abstract:
Constraining climate models under extreme boundary conditions of the past on societally-relevant timescales is complicated by a common lack of high-resolution reconstructions of sea surface environmental variability for glacial periods. Fossil corals provide a unique but relatively rare climate proxy for the tropical ocean that can be sampled at high resolution. Here, we present subseasonally-resolved geochemical proxy data (Sr/Ca, δ¹⁸O, δ¹³C) from well-preserved fossil corals of the penultimate glacial (153 ka and 148 ka during Marine Isotope Stage 6b) and last glacial periods (30 ka during MIS 3a) drilled by Integrated Ocean Drilling Program (IODP) Expedition 310 "Tahiti Sea Level" in the central tropical South Pacific. Samples from selected well-preserved skeletal portions with no evidence of diagenetic alteration were analyzed at 0.5 mm resolution for geochemistry. These datasets are the first monthly-to-bimonthly resolved coral proxy records of the penultimate glacial and the last glacial periods for the Pacific Ocean, and for the global ocean with respect to the penultimate glacial, which can be useful for paleoclimate reconstruction studies and model simulation studies.
Related to:
Asami, Ryuji; Felis, Thomas; Shinjo, Ryuichi; Murayama, Masafumi; Iryu, Yasufumi (preprint): Penultimate glacial sea surface temperature and hydrologic variability in the tropical South Pacific from 150 ka Tahiti corals. https://doi.org/10.5194/egusphere-2025-2996
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 408139156: Tropical Pacific temperature seasonality around Meltwater Pulse-1A from IODP Expedition 310 corals
Japan Society for the Promotion of Science (JSPS), grant/award no. 1010005006890: World Premier International Research Center Initiative (WPI), MEXT
Coverage:
Median Latitude: -17.488580 * Median Longitude: -149.403363 * South-bound Latitude: -17.488580 * West-bound Longitude: -149.403400 * North-bound Latitude: -17.488580 * East-bound Longitude: -149.403350
Date/Time Start: 2005-10-18T21:50:00 * Date/Time End: 2005-10-21T20:15:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 datasets
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Datasets listed in this publication series
- Asami, R; Felis, T; Shinjo, R et al. (2025): Geochemical data from the fossil coral Porites spp. in IODP sample 310-M0009B-17R-1W, 44-53cm (~30 ka). https://doi.org/10.1594/PANGAEA.987193
- Asami, R; Felis, T; Shinjo, R et al. (2025): Geochemical data from the fossil coral Porites spp. in IODP sample 310-M0009D-25R-1W, 65-75cm (~148 ka). https://doi.org/10.1594/PANGAEA.987207
- Asami, R; Felis, T; Shinjo, R et al. (2025): Geochemical data from the fossil coral Porites spp. in IODP sample 310-M0009D-25R-2W, 43-51cm (~153 ka). https://doi.org/10.1594/PANGAEA.987208
- Asami, R; Felis, T; Shinjo, R et al. (2025): Geochemical data from the fossil coral Porites spp. in IODP sample 310-M0009D-25R-2W, 51-57cm (~153 ka). https://doi.org/10.1594/PANGAEA.987209