Benthic boron isotope data and associated pH determinations, from paper on Cenozoic evolution of deep ocean temperature from clumped isotope thermometry

• Main Authors: Rae, James W B, Meckler, Anna Nele, Sexton, Philip F
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: 154-926A; 154-926B; 165-999A; 207-1258A; 207-1260A; 342-U1409A; 342-U1409B; 342-U1409C; Age; Benthic foraminifera; Boron isotope; Bottom water temperature; Calcium; Caribbean Sea; Cenozoic; Cibicidoides spp.; δ11B; standard deviation; DRILL; Drilling/drill rig; Event label; Exp342; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Laboratory; Leg154; Leg165; Leg207; Logarithmic boron dissociation constant; Magnesium; Ocean Drilling Program; ODP; Paleoelevation; Paleogene Newfoundland Sediment Drifts; Paleosalinity; pH; seawater; reconstructed; percentile; Newfoundland; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.946837; https://doi.org/10.1594/PANGAEA.946837

Boron isotope data on benthic foraminifera, spanning 1 to 59 Ma, and used to reconstruct deep ocean pH change over the Cenozoic. Data are from ODP sites spanning water depths of 2500-3600 m in the Equatorial and North Atlantic. Measurements were made on mono-specific samples of the genus Cibicidoides, which were oxidatively cleaned, purified using column chromatography, and analysed using MC-ICPMS. The data are presented as part of a study on deep ocean temperature change over the Cenozoic using clumped isotopes, with the pH estimates used to evaluate the potential pH influence on conventional benthic oxygen isotopes.