High resolution trace metal analysis of benthic foraminifera reveal nutrient excursions in Antarctic Intermediate Water

The use of δ13C within foraminifera as a nutrient proxy is complicated by air-sea exchange processes that cause isotopic deviations due to equilibrium fractionation between the ocean and atmosphere. These effects can be resolved by the utilisation of proxies such as cadmium, which co-varies with pho...

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Bibliographic Details
Main Authors: Cook, M.R., Elderfield, H., Zahn, R., Pahnke, K.
Format: Article in Journal/Newspaper
Language:English
Published: 2006
Subjects:
Online Access:http://eprints.esc.cam.ac.uk/2144/
http://eprints.esc.cam.ac.uk/2144/1/Cook_Geochim_Acta_2006.pdf
http://www.sciencedirect.com/science/article/pii/S001670370600411X
Description
Summary:The use of δ13C within foraminifera as a nutrient proxy is complicated by air-sea exchange processes that cause isotopic deviations due to equilibrium fractionation between the ocean and atmosphere. These effects can be resolved by the utilisation of proxies such as cadmium, which co-varies with phosphate in the modern ocean.