IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v15y2024i1d10.1038_s41467-024-47224-5.html
   My bibliography  Save this article

Europium in plagioclase-hosted melt inclusions reveals mantle melting modulates oxygen fugacity

Author

Listed:
  • Nicholas Dygert

    (University of Tennessee, Knoxville, 1621 Cumberland Ave, 602 Strong Hall)

  • Gokce K. Ustunisik

    (South Dakota School of Mines and Technology
    American Museum of Natural History, 200 Central Park West)

  • Roger L. Nielsen

    (South Dakota School of Mines and Technology)

Abstract

To gain insights into the composition and heterogeneity of Earth’s interior, the partial pressure of oxygen (oxygen fugacity, or fO2) in igneous rocks is characterized. A surprising observation is that relative to reference buffers, fO2s of mantle melts (mid-ocean ridge basalts, or MORBs) and their presumed mantle sources (abyssal peridotites) differ. Globally, MORBs have near-uniform fO2s, whereas abyssal peridotites vary by about three orders of magnitude, suggesting these intimately related geologic reservoirs are out of equilibrium. Here, we characterize fO2s of mantle melting increments represented by plagioclase-hosted melt inclusions, which were entrapped as basaltic melts migrated from their sources toward the seafloor. At temperatures and fO2s constrained by rare earth element distributions, a range of fO2s consistent with the abyssal peridotites is recovered. The fO2s are correlated with geochemical proxies for mantle melting, suggesting partial melting of Earth’s mantle decreases its fO2, and that the uniformity of MORB fO2s is a consequence of the melting process and plate tectonic cycling.

Suggested Citation

  • Nicholas Dygert & Gokce K. Ustunisik & Roger L. Nielsen, 2024. "Europium in plagioclase-hosted melt inclusions reveals mantle melting modulates oxygen fugacity," Nature Communications, Nature, vol. 15(1), pages 1-16, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47224-5
    DOI: 10.1038/s41467-024-47224-5
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-024-47224-5
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-024-47224-5?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Emma N. Bennett & Frances E. Jenner & Marc-Alban Millet & Katharine V. Cashman & C. Johan Lissenberg, 2019. "Deep roots for mid-ocean-ridge volcanoes revealed by plagioclase-hosted melt inclusions," Nature, Nature, vol. 572(7768), pages 235-239, August.
    2. Dustin Trail & E. Bruce Watson & Nicholas D. Tailby, 2011. "The oxidation state of Hadean magmas and implications for early Earth’s atmosphere," Nature, Nature, vol. 480(7375), pages 79-82, December.
    3. Dante Canil, 1997. "Vanadium partitioning and the oxidation state of Archaean komatiite magmas," Nature, Nature, vol. 389(6653), pages 842-845, October.
    4. Yaoling Niu & Roger Hékinian, 1997. "Spreading-rate dependence of the extent of mantle melting beneath ocean ridges," Nature, Nature, vol. 385(6614), pages 326-329, January.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Romain Tilhac & Károly Hidas & Beñat Oliveira & Carlos J. Garrido, 2023. "Evidence of ghost plagioclase signature induced by kinetic fractionation of europium in the Earth’s mantle," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. John M. O’Connor & Wilfried Jokat & Peter J. Michael & Mechita C. Schmidt-Aursch & Daniel P. Miggins & Anthony A. P. Koppers, 2021. "Thermochemical anomalies in the upper mantle control Gakkel Ridge accretion," Nature Communications, Nature, vol. 12(1), pages 1-12, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47224-5. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.