Comment on "Iron isotope constraints on the Archean and Paleoproterozoic ocean redox state"

Comment on "Iron isotope constraints on the Archean and Paleoproterozoic ocean redox state"

Rouxel et al. (Reports, 18 February 2005, p. 1088) argued that changes in the iron isotopic composition of sedimentary sulfides reflect changes in the oxidation state of the atmosphere-ocean system between 2.3 and 1.8 million years ago. We show that misinterpretations of the origins of these mineral...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 2006-01, Vol.311 (5758), p.177; author reply 177-177
Hauptverfasser: Yamaguchi, Kosei E, Ohmoto, Hiroshi
Format: Artikel
Sprache:eng
Schlagworte:
Geologic Sediments - chemistry
Iron - chemistry
Iron Isotopes - analysis
Marine
Oceans and Seas
Seawater
Sulfides - chemistry
Time
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Zusammenfassung:Rouxel et al. (Reports, 18 February 2005, p. 1088) argued that changes in the iron isotopic composition of sedimentary sulfides reflect changes in the oxidation state of the atmosphere-ocean system between 2.3 and 1.8 million years ago. We show that misinterpretations of the origins of these minerals undermine their conclusions.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1118221