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Antarctic bottom water formation and the global cadmium to phosphorus relationship
Author(s) -
Frew Russell D.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl02238
Subject(s) - abyssal zone , cadmium , antarctic bottom water , bottom water , phosphorus , oceanography , environmental science , antarctic intermediate water , geology , deep water , environmental chemistry , chemistry , north atlantic deep water , organic chemistry
Near‐surface waters close to the Antarctic continent are found to have high cadmium concentrations with respect to phosphorus. These waters have been shown to be the major component in the local formation of Antarctic Bottom Water in this region. It is demonstrated that Antarctic Bottom Water so formed would have a high preformed cadmium to phosphorus ratio. The ventilation of the abyssal ocean with this water would contribute to the observed kink in the global cadmium to phosphorus relationship. This is an important conclusion for paleochemical studies and may account for part of the discrepancy between cadmium and carbon‐13 paleochemical tracers observed in the Southern Ocean.