Novak, Joseph B; Caballero-Gill, Rocio P; Rose, Rebecca; Herbert, Timothy D; Dowsett, Harry J: Species-specific benthic foraminifera stable carbon isotope ratio offset of ODP Site 145-883 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967362 (dataset in review), In: Novak, JB et al.: 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.pangaea.de/10.1594/PANGAEA.967342 (dataset in review)
Abstract:
Here we present stable oxygen and carbon isotope measurements of C. wuellerstorfi and U. peregrina in discrete samples from ODP site 883. 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. 106 samples were run in duplicate or better. 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. Cibicidoides mundulus was used in 2 samples where Cibicidoides wuellerstorfi was not sufficiently abundant to provide a good signal for mass spectrometry. 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:
Median Latitude: 51.198600 * Median Longitude: 167.768750 * South-bound Latitude: 51.198500 * West-bound Longitude: 167.768700 * North-bound Latitude: 51.198700 * East-bound Longitude: 167.768800
Date/Time Start: 1992-08-09T09:40:00 * Date/Time End: 1992-08-13T15:15:00
Minimum DEPTH, sediment/rock: 84.22 m * Maximum DEPTH, sediment/rock: 166.97 m
Event(s):
145-883B * Latitude: 51.198500 * Longitude: 167.768800 * Date/Time Start: 1992-08-09T09:40:00 * Date/Time End: 1992-08-12T09:00:00 * Elevation: -2395.0 m * Penetration: 840.7 m * Recovery: 695.41 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 88 cores; 840.7 m cored; 0 m drilled; 82.7 % recovery
145-883C * Latitude: 51.198700 * Longitude: 167.768700 * Date/Time Start: 1992-08-12T09:00:00 * Date/Time End: 1992-08-13T15:15:00 * Elevation: -2397.0 m * Penetration: 355 m * Recovery: 344.3 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 355 m cored; 0 m drilled; 97 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Novak, Joseph B | |||
| 2 | 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) | |
| 3 | DEPTH, sediment/rock | Depth sed | m | Novak, Joseph B | Geocode – mcd | |
| 4 | AGE | Age | ka BP | Novak, Joseph B | Geocode | |
| 5 | Cibicidoides wuellerstorfi | C. wuellerstorfi | # | Novak, Joseph B | Counting 150-355 µm | number of measurements averaged in the isotope values reported in this table |
| 6 | Cibicidoides wuellerstorfi, δ13C | C. wuellerstorfi δ13C | ‰ PDB | Novak, Joseph B | Mass spectrometer Finnigan MAT 252 | vs. VPDB, size fraction 150-355 µm |
| 7 | Cibicidoides wuellerstorfi, δ18O | C. wuellerstorfi δ18O | ‰ PDB | Novak, Joseph B | Mass spectrometer Finnigan MAT 252 | vs. VPDB, size fraction 150-355 µm |
| 8 | Cibicidoides wuellerstorfi, δ13C | C. wuellerstorfi δ13C | ‰ PDB | Novak, Joseph B | adjusted | vs. VPDB, size fraction 150-355 µm |
| 9 | Cibicidoides wuellerstorfi, δ18O | C. wuellerstorfi δ18O | ‰ PDB | Novak, Joseph B | adjusted | vs. VPDB, size fraction 150-355 µm, values were adjusted by +0.64‰ |
| 10 | Uvigerina proboscidea | U. proboscidea | # | Novak, Joseph B | Counting 150-355 µm | number of measurements averaged in the isotope values reported in this table |
| 11 | Uvigerina proboscidea, δ13C | U. proboscidea δ13C | ‰ PDB | Novak, Joseph B | Mass spectrometer Finnigan MAT 252 | vs. VPDB, size fraction 150-355 -m, |
| 12 | Uvigerina proboscidea, δ18O | U. proboscidea δ18O | ‰ PDB | Novak, Joseph B | Mass spectrometer Finnigan MAT 252 | vs. VPDB, size fraction 150-355 µm |
| 13 | Uvigerina proboscidea, δ13C | U. proboscidea δ13C | ‰ PDB | Novak, Joseph B | adjusted | vs. VPDB, size fraction 150-355 µm, values were adjusted by +0.9‰ |
| 14 | Uvigerina proboscidea, δ18O | U. proboscidea δ18O | ‰ PDB | Novak, Joseph B | adjusted | vs. VPDB, size fraction 150-355 µm |
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:
1836 data points