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

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 thermo...

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Bibliographic Details
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
Description
Summary: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.

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