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Hafnium and neodymium isotope variations in NE Atlantic seawater

Abstract:

The 176Hf/177Hf ratio of seawater is measured directly with 143Nd/144Nd in a composite vertical profile in the NE Atlantic. The value of εHf of intermediate and deep water exhibits little variation and averages +1.0 ± 0.8; surface water shows a wider range,-5.7 to +3.3. While intermediate and deep water samples plot on, or close to, the seawater Hf-Nd isotope array, defined by ferromanganese deposits, near-surface seawater samples plot between the seawater and terrestrial rock εHf-εNd arrays....

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Publication status:
Published

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Publisher copy:
10.1029/2009GC002508

Authors


Godfrey, LV More by this author
Zimmermann, B More by this author
Vervoort, JD More by this author
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Journal:
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
Volume:
10
Issue:
8
Pages:
n/a-n/a
Publication date:
2009-08-20
DOI:
EISSN:
1525-2027
ISSN:
1525-2027
URN:
uuid:2f9d34b7-fd45-4e45-a197-c0f97685b39b
Source identifiers:
82919
Local pid:
pubs:82919
Language:
English
Keywords:

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