Ostracod faunas and water masses across the continental margin off southwestern Africa

• Published in: Marine Geology
• Main Authors: Dingle, R. V., Lord, A. R., Boomer, I. D.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 1989
• Subjects: Antarctic; The Antarctic; Antarc*; NADW; North Atlantic Deep Water; North Atlantic
• Online Access: https://oceanrep.geomar.de/id/eprint/32005/; https://oceanrep.geomar.de/id/eprint/32005/1/1-s2.0-0025322789900698-main.pdf; https://doi.org/10.1016/0025-3227(89)90069-8

Changes in composition of modern benthic ostracod faunas across the continental margin of southwestern Africa occur at boundaries between and within major water masses: a Mixed Layer-Antarctic Intermediate Water (AAIW) boundary at 200 m, an AAIW salinity minimum zone at 650 m, an AAIW bathyal thermocline at 1000 m, and the AAIW/North Atlantic Deep Water (NADW) boundary at 1500 m. In addition, two population changes occur within the NADW at 1.8–2.0 km and 2.0–3.0 km. The Antarctic Bottom Water assemblage is sparse and poorly preserved.