Novak, Joseph B; Caballero-Gill, Rocio P; Rose, Rebecca; Herbert, Timothy D; Dowsett, Harry J (2024): Benthic foraminifera isotope ratios of ODP Site 145-887 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.967377, In: Novak, JB et al. (2024): Multiproxy paleoceanographic dataset from ODP sites 883 and 887 and compiled mid Piacenzian benthic foraminiferal stable carbon isotope data from 23 IODP/ODP/DSDP sites [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.967342
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Abstract:
Here we present stable carbon and oxygen isotope data measurements of C. wuellerstorfi in discrete samples from ODP 887A. Samples were freeze dried, weighed, soaked in water for 24 hours to disaggregate, and wet sieved using a 150 μm mesh sieve. Samples were then dried at 40°C. Select genera and species were picked and comprehensively counted from the 150–355 μm fraction. Insufficent specimens were recovered for replicate analyses. Specimens selected for isotopic analysis were cleaned with 70 μL ethanol and sonicated for 30 seconds. Ethanol was drawn off with a pipette, and specimens were dried overnight at room temperature. Isotope ratios were quantified at the Brown University stable isotope facility with a Finnigan Mat 252 with Carbonate Kiel III autosampler, in which individual samples were reacted with 70°C H3PO4. Cibicidoides δ18O values were adjusted by +0.64‰ to Uvigerina values. Cibicidoides mundulus isotopic values were taken as equivalent to C. wuellerstorfi. Only C. wuellerstrofi values should be used for analysis of stable carbon isotope data.
Keyword(s):
Project(s):
Ocean Drilling Program (ODP)
Funding:
National Science Foundation (NSF), grant/award no. 1545859: PIRE: DUST stimulated drawn-down of atmospheric CO2 as a trigger for Northern Hemisphere Glaciation
National Science Foundation (NSF), grant/award no. 1602331: Collaborative Research: Did the SE Pacific Gyre become a Hot Spot for N2 Fixation during Dusty Glacial Conditions?
Coverage:
Latitude: 54.365400 * Longitude: -148.446000
Date/Time Start: 1992-09-09T15:30:00 * Date/Time End: 1992-09-11T06:15:00
Minimum DEPTH, sediment/rock: 103.26 m * Maximum DEPTH, sediment/rock: 110.78 m
Event(s):
145-887A * Latitude: 54.365400 * Longitude: -148.446000 * Date/Time Start: 1992-09-09T15:30:00 * Date/Time End: 1992-09-11T06:15:00 * Elevation: -3643.0 m * Penetration: 286 m * Recovery: 239.84 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 core; 286 m cored; 0 m drilled; 83.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Novak, Joseph B | DSDP/ODP/IODP sample designation | sampled cm is given as midpoint (e.g., 5 is the midpoint of 4-6) | |
| 2 | Cibicidoides wuellerstorfi | C. wuellerstorfi | # | Novak, Joseph B | Counting 150-355 µm | species measured |
| 3 | DEPTH, sediment/rock | Depth sed | m | Novak, Joseph B | Geocode – mbsf | |
| 4 | AGE | Age | ka BP | Novak, Joseph B | Geocode | |
| 5 | Cibicidoides wuellerstorfi, δ13C | C. wuellerstorfi δ13C | ‰ PDB | Novak, Joseph B | Mass spectrometer Finnigan MAT 252 | vs. VPDB. No species-specific isotope offset applied. |
| 6 | Cibicidoides wuellerstorfi, δ18O | C. wuellerstorfi δ18O | ‰ PDB | Novak, Joseph B | Mass spectrometer Finnigan MAT 252 | vs. VPDB. No species-specific isotope offset applied. |
| 7 | Cibicidoides wuellerstorfi, δ13C | C. wuellerstorfi δ13C | ‰ PDB | Novak, Joseph B | adjusted | vs. VPDB. Ff relevent, species specific isotope offset was applied. |
| 8 | Cibicidoides wuellerstorfi, δ18O | C. wuellerstorfi δ18O | ‰ PDB | Novak, Joseph B | adjusted | vs. VPDB. No species-specific isotope offset applied. If relevent, species specific isotope offset was applied. |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
222 data points