PANGAEA_924730 Single-shell stable isotopes, weights, ages, Marine Isotope Stages (MIS), and preservation states of Uvigerina spp. from ODP Holes 138-846B and 138-846C Poirier, Robert K; Gaetano, Madison Q; Acevedo, Kimberly; Schaller, Morgan F; Raymo, Maureen E; Kozdon, Reinhard Single-shell stable isotopes, weights, ages, Marine Isotope Stages (MIS), and preservation states of Uvigerina spp. from ODP Holes 138-846B and 138-846C 2020-11-13 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.924730 Investigator Reinhard Kozdon rkozdon@ldeo.columbia.edu Earth Science Event label Date/Time of event Latitude of event Longitude of event Elevation of event Sample code/label AGE Uvigerina spp., δ18O Uvigerina spp., δ13C Mass Foraminifera, preservation index Marine isotope stage geoscientificInformation 138-846B 138-846C d13C d18O Drilling/drill rig Leg138 MIS 9-10 ODP Site 846 preservation single-shell Stable isotope Uvigerina DSDP/ODP/IODP sample designation see description in data abstract Isoprime 100 dual inlet mass spectrometer Weighed (scale) Joides Resolution 1991-05-21 1991-05-25 Complete -3.0966 -3.09493 -90.8181 -90.81796 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 246 data points text/tab-separated-values Poirier, Robert K; Gaetano, Madison Q; Acevedo, Kimberly; Schaller, Morgan F; Raymo, Maureen E; Kozdon, Reinhard (accepted): Quantifying Diagenesis, Contributing Factors, and Resulting Isotopic Bias in Benthic Foraminifera using the Foraminiferal Preservation Index: Implications for Geochemical Proxy Records. Paleoceanography and Paleoclimatology, https://doi.org/10.1029/2020PA004110 Ahn, Seonmin; Khider, D; Lisiecki, Lorraine E; Lawrence, Charles E (2017): A probabilistic Pliocene–Pleistocene stack of benthic δ18O using a profile hidden Markov model. Dynamics and Statistics of the Climate System, 2(1), https://doi.org/10.1093/climsys/dzx002 Lisiecki, Lorraine E; Raymo, Maureen E (2005): A Pliocene-Pleistocene stack of 57 globally distributed benthic d18O records. Paleoceanography, 20, PA1003, https://doi.org/10.1029/2004PA001071 Mix, Alan C; Le, Jianning; Shackleton, Nicholas J (1995): Benthic foraminiferal stable isotope stratigraphy of site 846: 0-1.8 Ma. In: Pisias, NG; Mayer, LA; Janecek, TR; Palmer-Julson, A; van Andel, TH (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 138, 839-854, https://doi.org/10.2973/odp.proc.sr.138.160.1995 Shackleton, Nicholas J; Hall, Mike A; Pate, D (1995): Stable oxygen and carbon isotope ratios of benthic foraminifera from ODP Site 138-846 in the eastern equatorial Pacific. In: N.G. Pisias, L.A. Mayer, T.R. Janecek, A. Palmer-Julson and T.H. van Andel (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, Texas, 337-355

This dataset contains single-shell stable isotope data (d18O and d13C), shell weights, ages, and preservation states of Uvigerina shells spanning MIS 9-10 from ODP Site 846 south of the Galapagos Islands (-3.095°N, -90.818°E, 3296 m water depth). Sediment samples were processed following standard procedures. From each >63µm sediment sample, all specimens of the genera Cibicidoides and Uvigerina were picked from the >150 µm size fraction. Using a binocular microscope, each individual Cibicidoides and Uvigerina specimen was critically evaluated for preservation quality. Details of the Foraminiferal Preservation Index (FPI) can be found in the corresponding publication. In short, an initial score (IS) of 5 is applied to an ideal specimen with clearly defined whorls, sutures, pores, and other surface features. A shell with an IS score of 3 usually contains enlarged pores and "smoothed" looking surface features, including sutures and surface ornamentation. An IS score of 4 is assigned to specimens with more subtly smoothed features, and/or slightly enlarged pores. From the IS3-5 value for a given specimen, deductions of 1-2 points are applied to generate its final score (FS). A deduction of 1 point is applied for either a missing or fractured chamber, and/or evidence of slight dissolution. A deduction of 2 points is applied for extensive missing or fractured chambers, and/or evidence of extensive dissolution. For example, an assigned FS1 value for a specimen could be the result of highly smoothed surface features, with some combination of extensive dissolution pockmarks and/or one to several fractured/missing chambers (i.e. IS3 - 2 = FS1). The letter "A" assigned to the final score indicates that the appearance of the shell is glassy, "B" is assigned to pseudo-glassy shells, and "C" to frosty specimens. Specimens of varying preservation quality were purposely chosen for single-shell stable isotope analyses. Each specimen was weighed, and shells featuring narrow mass ranges were selected for individual analytical runs of d18O and d13C which allows for the optimization of instrument tuning. Single Uvigerina shells were analyzed on an Isoprime 100 dual inlet mass spectrometer with carbonate multi-preparation system at Rensselaer Polytechnic Institute, and were corrected relative to the NBS-19 calcite standard. These analyses produced average precision better than 0.06‰ for δ18O and better than 0.03‰ for δ13C. The age model is based on published stable isotope records (Mix et al. 1995; Shackleton et al., 1995) tuned to the deep sea benthic d18O stack (Lisiecki and Raymo, 2005; Ahn et al., 2017). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.924730"!

http://en.wikipedia.org/wiki/Kyr AGE https://doi.org/10.1029/2004PA001071 A Pliocene-Pleistocene stack of 57 globally distributed benthic d18O records https://doi.org/10.1029/2020PA004110 Quantifying Diagenesis, Contributing Factors, and Resulting Isotopic Bias in Benthic Foraminifera using the Foraminiferal Preservation Index: Implications for Geochemical Proxy Records https://doi.org/10.1093/climsys/dzx002 A probabilistic Pliocene–Pleistocene stack of benthic δ18O using a profile hidden Markov model https://doi.org/10.2973/odp.proc.sr.138.160.1995 Benthic foraminiferal stable isotope stratigraphy of site 846: 0-1.8 Ma https://hdl.handle.net/10013/epic.27914.d001 DSDP/ODP/IODP sample designation https://www-odp.tamu.edu:443/resolutn.html Joides Resolution DIF 9.4 2020-11-13 2026-07-15