South Atlantic intermediate water mass geometry for the last glacial maximum from foraminiferal Cd/Ca
Article first published online: 4 DEC 2010
Copyright 2010 by the American Geophysical Union.
Volume 25, Issue 4, December 2010
How to Cite
2010), South Atlantic intermediate water mass geometry for the last glacial maximum from foraminiferal Cd/Ca, Paleoceanography, 25, PA4101, doi:10.1029/2010PA001962., , and (
- Issue published online: 4 DEC 2010
- Article first published online: 4 DEC 2010
- Manuscript Accepted: 5 AUG 2010
- Manuscript Revised: 1 JUL 2010
- Manuscript Received: 24 MAR 2010
- last glacial maximum;
- Atlantic Ocean;
 Paleoceanographic studies using benthic foraminiferal Cd as a nutrient tracer have provided a robust means of reconstructing glacial Atlantic Ocean water mass geometry, but a paucity of data from the South Atlantic above 1200 m has limited investigation of Antarctic Intermediate Water (AAIW) configuration and formation. A new Cd depth profile from Brazil margin sediments suggests that AAIW penetrated northward at 1100 m to at least 27°S in the glacial Atlantic. It exhibited substantially reduced δ13Cas values, confirming preliminary evidence that this AAIW was unique to the glacial Atlantic and that it formed differently than today, with less atmospheric contact.