δ¹⁸O analyses of the planktic foraminifera Acarinina soldadoensis from ODP Hole 113-690B ...

• Main Authors: Kozdon, Reinhard, Penman, Donald E, Kelly, Daniel Clay, Zachos, James C, Fournelle, John H, Valley, John W
• Format: Dataset
• Language: English
• Published: PANGAEA 2020
• Subjects: Acarinina soldadoensis; Acarininids; d18O; EPMA; Mg/Ca; ODP Site 690; PETM; SIMS; Weddell Sea; Sample code/label; DEPTH, sediment/rock; Size fraction; Acarinina soldadoensis, δ18O; Drilling/drill rig; Leg113; Joides Resolution
• Online Access: https://dx.doi.org/10.1594/pangaea.914651; https://doi.pangaea.de/10.1594/PANGAEA.914651

Sampling and Analyzing Method: Acarininid shells were cast in epoxy, ground to midsection and imaged by SEM to identify suitable, well-preserved domains for analysis. In situ d18O data were acquired in the WiscSIMS Laboratory at the Department of Geoscience, UW-Madison, using a CAMECA IMS-1280 large radius multicollector SIMS. (Kita et al., 2009; Valley and Kita, 2009). Depending on the size of the target, samples were analyzed with a 10 µm or 3 µm primary beam. Four consecutive measurements of UWC-3 calcite standard (d18O = 12.40 per mille Vienna standard mean ocean water; VSMOW; Kozdon et al., 2009) were performed before and after every set of typically 10 sample analyses. ...