(Table S) Planktonic foraminifera I/Ca during the PETM

• Main Authors: Zhou, Xiaoli, Thomas, Ellen, Rickaby, Rosalind E M, Winguth, Arne M E, Lu, Zunli
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: 113-690B; 119-738C; 122-762C; 143-865; 208-1262; 208-1263; Age; relative; COMPCORE; Composite Core; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Indian Ocean; Inductively coupled plasma - mass spectrometry (ICP-MS); Iodine/Calcium ratio; Iodine/Calcium ratio standard deviation; Joides Resolution; Latitude of event; Leg113; Leg119; Leg122; Leg143; Leg208; Longitude of event; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean; South Indian Ridge; South Indian Ocean; Walvis Ridge; Southeast Atlantic Ocean; Pacific; Indian; Planktonic foraminifera
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.869448; https://doi.org/10.1594/PANGAEA.869448

As yet no evidence has been presented for pervasive deoxygenation in the upper water column through expansion of Oxygen Minimum Zones (OMZs) during the PETM. We apply a novel proxy for paleo-redox conditions, the iodine to calcium ratio (I/Ca) in bulk coarse fraction sediment and planktonic foraminiferal tests from pelagic sites in different oceans, and compared our reconstruction with modeled oxygen levels. The reconstructed iodate gradients indicate that deoxygenation occurred in the upper water column in the Atlantic, Indian Oceans, and possibly the Pacific Ocean as well during the PETM, due to vertical and potentially lateral expansion of OMZs.