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Widespread iron-rich conditions in the mid-Proterozoic ocean.
Nature. 2011 Sep 07; 477(7365):448-51.Nat

Abstract

The chemical composition of the ocean changed markedly with the oxidation of the Earth's surface, and this process has profoundly influenced the evolutionary and ecological history of life. The early Earth was characterized by a reducing ocean-atmosphere system, whereas the Phanerozoic eon (less than 542 million years ago) is known for a stable and oxygenated biosphere conducive to the radiation of animals. The redox characteristics of surface environments during Earth's middle age (1.8-1 billion years ago) are less well known, but it is generally assumed that the mid-Proterozoic was home to a globally sulphidic (euxinic) deep ocean. Here we present iron data from a suite of mid-Proterozoic marine mudstones. Contrary to the popular model, our results indicate that ferruginous (anoxic and Fe(2+)-rich) conditions were both spatially and temporally extensive across diverse palaeogeographic settings in the mid-Proterozoic ocean, inviting new models for the temporal distribution of iron formations and the availability of bioessential trace elements during a critical window for eukaryotic evolution.

Authors+Show Affiliations

Department of Earth Sciences, University of California, Riverside, California 92521, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Historical Article
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

21900895

Citation

Planavsky, Noah J., et al. "Widespread Iron-rich Conditions in the mid-Proterozoic Ocean." Nature, vol. 477, no. 7365, 2011, pp. 448-51.
Planavsky NJ, McGoldrick P, Scott CT, et al. Widespread iron-rich conditions in the mid-Proterozoic ocean. Nature. 2011;477(7365):448-51.
Planavsky, N. J., McGoldrick, P., Scott, C. T., Li, C., Reinhard, C. T., Kelly, A. E., Chu, X., Bekker, A., Love, G. D., & Lyons, T. W. (2011). Widespread iron-rich conditions in the mid-Proterozoic ocean. Nature, 477(7365), 448-51. https://doi.org/10.1038/nature10327
Planavsky NJ, et al. Widespread Iron-rich Conditions in the mid-Proterozoic Ocean. Nature. 2011 Sep 7;477(7365):448-51. PubMed PMID: 21900895.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Widespread iron-rich conditions in the mid-Proterozoic ocean. AU - Planavsky,Noah J, AU - McGoldrick,Peter, AU - Scott,Clinton T, AU - Li,Chao, AU - Reinhard,Christopher T, AU - Kelly,Amy E, AU - Chu,Xuelei, AU - Bekker,Andrey, AU - Love,Gordon D, AU - Lyons,Timothy W, Y1 - 2011/09/07/ PY - 2011/01/25/received PY - 2011/06/23/accepted PY - 2011/9/9/entrez PY - 2011/9/9/pubmed PY - 2011/11/4/medline SP - 448 EP - 51 JF - Nature JO - Nature VL - 477 IS - 7365 N2 - The chemical composition of the ocean changed markedly with the oxidation of the Earth's surface, and this process has profoundly influenced the evolutionary and ecological history of life. The early Earth was characterized by a reducing ocean-atmosphere system, whereas the Phanerozoic eon (less than 542 million years ago) is known for a stable and oxygenated biosphere conducive to the radiation of animals. The redox characteristics of surface environments during Earth's middle age (1.8-1 billion years ago) are less well known, but it is generally assumed that the mid-Proterozoic was home to a globally sulphidic (euxinic) deep ocean. Here we present iron data from a suite of mid-Proterozoic marine mudstones. Contrary to the popular model, our results indicate that ferruginous (anoxic and Fe(2+)-rich) conditions were both spatially and temporally extensive across diverse palaeogeographic settings in the mid-Proterozoic ocean, inviting new models for the temporal distribution of iron formations and the availability of bioessential trace elements during a critical window for eukaryotic evolution. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/21900895/Widespread_iron_rich_conditions_in_the_mid_Proterozoic_ocean_ L2 - https://doi.org/10.1038/nature10327 DB - PRIME DP - Unbound Medicine ER -