Benthic foraminiferal stable isotope record of the early Paleogene in the Southern Ocean ...

• Main Authors: Katz, Miriam E, Miller, K G
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1991
• Subjects: Drilling/drill rig; Composite Core; Leg11; Leg114; Glomar Challenger; Joides Resolution; Ocean Drilling Program ODP; Southern Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.754016; https://doi.pangaea.de/10.1594/PANGAEA.754016

ODP Leg 114 recovered sections at four sites east of the Falkland Plateau that cover a wide range of paleodepths and provide the opportunity to evaluate the response of benthic foraminifers to late Paleocene and Eocene Oceanographic changes. Early Paleogene paleodepth estimates were obtained by "backtracking" assuming simple thermal subsidence (Site 698, -900 m; Site 702, -2000 m; Site 700, -2400 m; and Site 699, -2800 m). These estimates agree with paleodepths determined by comparing our quantitative benthic foraminiferal assemblages to previously published assemblages associated with known paleodepths.Previous studies document that a major benthic foraminiferal crisis occurred in the latest Paleocene in the Atlantic, Caribbean, and Pacific; a similar faunal turnover occurred in the latest Paleocene throughout the Atlantic sector of the Southern Ocean. At the Leg 114 sites, Stensioina beccariiformis-dominated assemblages were replaced by Nuttallides tryempyi-dominated assemblages just prior to the ... : Supplement to: Katz, Miriam E; Miller, K G (1991): Early Paleogene benthic foraminiferal assemblages and stable isotopes in the Southern Ocean. In: Ciesielski, PF; Kristoffersen, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 114, 481-512 ...