Feng, Hua; Tian, Jun; Lyle, Mitchell W; Westerhold, Thomas; Wilkens, Roy H: Benthic isotopes of ODP Hole 130-807A [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967067 (dataset in review)
Abstract:
This data file contains benthic foraminiferal oxygen isotope (δ¹⁸O) and carbon isotope (δ13C) records from ODP Site 807 A. Data from the depth intervals 0.17–8.37 mbsf and 26.27–42.37 mbsf were previously published in Zhang et al. (2007) and Du et al. (2016), respectively. Isotope measurements are based on the >150µm fraction of C. wuellerstorfi where available. If C. wuellerstorfi was not available, specimens of U. peregrina and C. mundulus were used for analysis. All stable isotopic analyses were performed at the State Key Laboratory of Marine Geology, Tongji University on Finnigan MAT 252 or 253 mass spectrometers. External reproducibility based on replicate analyses of benthic foraminiferal samples is 0.07‰ and 0.04‰ for δ18O and δ13C.Various benthic foraminiferal species fractionate oxygen and carbon isotopes differently when forming tests, resulting in offsets in δ18O and δ13C. To account for this, we adopted such conventional correction factors of C. wuellerstorfi and C. mundulus/Uvigerina peregerina that 0.64 ‰ was subtracted from the δ18O and 0.9 ‰ was added to the δ13C of Uvigerina peregerina (Duplessy et al., 1984; Shackleton, 1974).
Related to:
Du, Jianghui; Huang, Baoqi; Zhou, Liping (2016): Global deepwater circulation between 2.4 and 1.7 Ma and its connection to the onset of Northern Hemisphere Glaciation. Paleoceanography, 31(11), 1480-1497, https://doi.org/10.1002/2015PA002906
Feng, Hua; Tian, Jun; Lyle, Mitchell W; Westerhold, Thomas; Wilkens, Roy H (2022): High resolution benthic foraminiferal δ18O and δ13C records at ODP site 807 over the past 5 Ma, Ontong Java Plateau: Evolution of North Pacific ventilation, Pliocene to Holocene. Global and Planetary Change, 217, 103945, https://doi.org/10.1016/j.gloplacha.2022.103945
Zhang, Jiangyong; Wang, Pinxian; Li, Qianyu; Cheng, Xinrong; Jin, Haiyan; Zhang, Shiying (2007): Western equatorial Pacific productivity and carbonate dissolution over the last 550 kyr: Foraminiferal and nannofossil evidence from ODP Hole 807A. Marine Micropaleontology, 64(3-4), 121-140, https://doi.org/10.1016/j.marmicro.2007.03.003
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 3.607000 * Longitude: 156.625000
Date/Time Start: 1990-02-26T16:08:00 * Date/Time End: 1990-03-02T21:00:00
Minimum DEPTH, sediment/rock: 0.170 m * Maximum DEPTH, sediment/rock: 111.340 m
Event(s):
130-807A * Latitude: 3.607000 * Longitude: 156.625000 * Date/Time Start: 1990-02-26T16:08:00 * Date/Time End: 1990-03-02T21:00:00 * Elevation: -2803.8 m * Penetration: 822.9 m * Recovery: 716.74 m * Location: West equatorial Pacific Ocean * Campaign: Leg130 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 86 cores; 822.9 m cored; 0 m drilled; 87.1 % recovery
Comment:
rmbsf: For Hole 807A, the high recovery exceeding 100% in the section cored with the APC (0–254.4 mbsf) results in overlapping depth (mbsf) between two adjacent cores. To avoid this, we adopted a new depth scale, the revised meter below sea floor (rmbsf) for the isotopic samples" (Feng et al., 2022).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Tian, Jun | Geocode – mbsf | |
| 2 | Depth, composite revised | Depth comp r | rmcd | Tian, Jun | rmbsf | |
| 3 | AGE | Age | ka BP | Tian, Jun | Geocode | |
| 4 | Foraminifera, benthic δ18O | Foram benth δ18O | ‰ PDB | Tian, Jun | Mass spectrometer, Finnigan, MAT 252; Mass spectrometer, Finnigan, MAT 253 | vs. VPDB |
| 5 | Foraminifera, benthic δ13C | Foram benth δ13C | ‰ PDB | Tian, Jun | Mass spectrometer, Finnigan, MAT 252; Mass spectrometer, Finnigan, MAT 253 | vs. VPDB |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
5199 data points
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