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A whiff of oxygen before the great oxidation event?
Science. 2007 Sep 28; 317(5846):1903-6.Sci

Abstract

High-resolution chemostratigraphy reveals an episode of enrichment of the redox-sensitive transition metals molybdenum and rhenium in the late Archean Mount McRae Shale in Western Australia. Correlations with organic carbon indicate that these metals were derived from contemporaneous seawater. Rhenium/osmium geochronology demonstrates that the enrichment is a primary sedimentary feature dating to 2501 +/- 8 million years ago (Ma). Molybdenum and rhenium were probably supplied to Archean oceans by oxidative weathering of crustal sulfide minerals. These findings point to the presence of small amounts of O2 in the environment more than 50 million years before the start of the Great Oxidation Event.

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Authors+Show Affiliations

Anbar AD
School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA. anbar@asu.edu
Duan Y
No affiliation info available
Lyons TW
No affiliation info available
Arnold GL
No affiliation info available
Kendall B
No affiliation info available
Creaser RA
No affiliation info available
Kaufman AJ
No affiliation info available
Gordon GW
No affiliation info available
Scott C
No affiliation info available
Garvin J
No affiliation info available
Buick R
No affiliation info available

MeSH

AustraliaGeologic SedimentsIsotopesMolybdenumOceans and SeasOsmiumOxidation-ReductionOxygenRheniumSeawaterSulfurSulfur IsotopesTemperatureUranium

Pub Type(s)

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

Language

eng

PubMed ID

17901330

Citation

Anbar, Ariel D., et al. "A Whiff of Oxygen Before the Great Oxidation Event?" Science (New York, N.Y.), vol. 317, no. 5846, 2007, pp. 1903-6.
Anbar AD, Duan Y, Lyons TW, et al. A whiff of oxygen before the great oxidation event? Science. 2007;317(5846):1903-6.
Anbar, A. D., Duan, Y., Lyons, T. W., Arnold, G. L., Kendall, B., Creaser, R. A., Kaufman, A. J., Gordon, G. W., Scott, C., Garvin, J., & Buick, R. (2007). A whiff of oxygen before the great oxidation event? Science (New York, N.Y.), 317(5846), 1903-6.
Anbar AD, et al. A Whiff of Oxygen Before the Great Oxidation Event. Science. 2007 Sep 28;317(5846):1903-6. PubMed PMID: 17901330.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A whiff of oxygen before the great oxidation event? AU - Anbar,Ariel D, AU - Duan,Yun, AU - Lyons,Timothy W, AU - Arnold,Gail L, AU - Kendall,Brian, AU - Creaser,Robert A, AU - Kaufman,Alan J, AU - Gordon,Gwyneth W, AU - Scott,Clinton, AU - Garvin,Jessica, AU - Buick,Roger, PY - 2007/9/29/pubmed PY - 2007/10/13/medline PY - 2007/9/29/entrez SP - 1903 EP - 6 JF - Science (New York, N.Y.) JO - Science VL - 317 IS - 5846 N2 - High-resolution chemostratigraphy reveals an episode of enrichment of the redox-sensitive transition metals molybdenum and rhenium in the late Archean Mount McRae Shale in Western Australia. Correlations with organic carbon indicate that these metals were derived from contemporaneous seawater. Rhenium/osmium geochronology demonstrates that the enrichment is a primary sedimentary feature dating to 2501 +/- 8 million years ago (Ma). Molybdenum and rhenium were probably supplied to Archean oceans by oxidative weathering of crustal sulfide minerals. These findings point to the presence of small amounts of O2 in the environment more than 50 million years before the start of the Great Oxidation Event. SN - 1095-9203 UR - https://www.unboundmedicine.com/medline/citation/17901330/A_whiff_of_oxygen_before_the_great_oxidation_event L2 - https://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=17901330 DB - PRIME DP - Unbound Medicine ER -