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Pore-fluid Fe isotopes reflect the extent of benthic Fe redox recycling: Evidence from continental shelf and deep-sea sediments

Abstract:

Pore-fluid Fe isotopes may be a unique tracer of sediment respiration by dissimilatory Fe-reducing bacteria, but to date, pore-fluid Fe isotope measurements have been restricted to continental shelf settings. Here, we present δ56Fe values of pore fluids from two distinct sedimentary settings: (1) a riverine-dominated site on the northern California margin (Eel River shelf; 120 m water depth) and (2) biogenic opal-rich volcaniclastic deep-sea sediments from the Southern Ocean (north and south ...

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Publication status:
Published

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Publisher copy:
10.1130/G25731A.1

Authors


Homoky, WB More by this author
Severmann, S More by this author
Statham, PJ More by this author
Journal:
GEOLOGY
Volume:
37
Issue:
8
Pages:
751-754
Publication date:
2009-08-05
DOI:
EISSN:
0091-7613
ISSN:
0091-7613
URN:
uuid:d82d25d3-115a-4fc3-ace7-495de6d7a9c0
Source identifiers:
406753
Local pid:
pubs:406753
Language:
English

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